Siemens AG 9
Solid State Relays (SSR) V23100-S
V23107-S
Features
●Fully electronic semi-conductor relays
●High switching speed and endurance
●Switch-on at voltage zero crossing, with relays with zero
voltage switch
●Switch-off in current zero crossing
●Silent switching
●Spark- and bounce-free switching
●Electrical isolation between control circuit and switching
circuit
●Low control power
●Logic compatibility (TTL)
●Not sensitive to vibration, impact or extreme environmen-
tal conditions
Typical applications
●Heating control systems
●Ovens and cookers
●Photocopying machines
●High perform ance laser printers
●Medical equipment
●Industrial controls
●Traffic signaling systems
Design
– With or without zero voltage switch
– One- and three-phase relay types
– Switching circuit: triac or 2 anti-parallel thyristors;
corresponds to one make contact
– Terminal type: PCB and screw
– Plast ic coating
– Dust-protected (V23100-S... Type C2) or immersion
cleanable
Approvals
VDE Marks of conformity
and
UL ML File E 85134 and
ML File E48393
VDE
79102 86713
10 Siemens AG
Solid State Relays (SSR)
Type B404
Dimension drawing (mm)
Mounting hole layout
View on the terminals
Basic grid di me nsi on 2.54 mm in ac co rdance with EN 6 009 7
Illustration approximately same size as original
Terminal assignment
Simplified circuit diagram
Tolerances
ECR0980-B
Siemens AG 11
Solid State Relays (SSR)
Type B404
SSR with zero voltage switch for PCB mounting
Ordering code V23107 -S4022-B404 -S4023-B404 -S4042-B404 -S4043-B404
Control circuit (typical values at 20 °C)
Minimum control voltage 2.5 V−4 V−
Maximum control voltage 10 V−30 V −
Minimum control current 3 mA−
Maximum control current 30 mA−
Release voltage 0.8 V−
Control circuit resistance 330 Ω1,000 Ω
Switching circuit (typical values at 20 °C)
Maxi mu m sw it ching cur rent
(see char acteristic page 1 3) 4 Arms
Minimum switching current 5 mArms
Nominal switching voltage 230 Vrms 400 Vrms 230 Vrms 400 Vrms
Switching voltage range 12...275 Vrms 12...460 Vrms 12...2 75 Vrms 12...460 Vrms
Maximum repetitive blocking voltage
(Voltage limited by varistor) 600 VS
(450 VS)1,000 VS
(720 VS)600 V S
(450 VS)1,000 VS
(720 VS)
Zero voltage range ±12 VS
Maximum surge current (ITSM, 10 ms)
(see surge current gradient page 13) 100 AS
Leakage current at nominal sw it ching volta ge
(50 Hz) 0.3 mArms
Peak load integra l (I2t, 10 ms) 50 A2s
Critical rate of rise on-state current (di/dt) 20 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching
current 1.6 VS
Operating frequency range 10...440 Hz
Maximum on- and off-time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and
switching circuit 4 kVrms
General data
Operating temperature range −40...+80 °C
Storage temperature range −40...+150 °C
Capaci ty be tween c ontrol circu it and swi tching
circu it 8 pF
Weight approx. 20 g
Approvals VDE, UL
N.B.: Clearances and creepage distances in accordance with EN 60950:1992+A1/DIN EN 60950 (VDE 0805):11.93
12 Siemens AG
Solid State Relays (SSR)
Type B404
SSR without zero voltage switch for PCB mounting
Ordering code V23107 -S4342-B404 -S4343-B404
Control circuit (typical values at 20 °C)
Minimum control voltage 3 V−
Maximu m control volta g e 30 V−
Minimum control current 2 mA−
Maximum control current 30 mA−
Release voltage 0.8 V−
Control circuit resistance 1,000 Ω
Switching circuit (typical values at 20 °C)
Max. switching current
(see characteristic page 13) 4 Arms
Minimum switching current 5 mArms
Nominal switching voltage 230 Vrms 400 Vrms
Switchi ng vo ltag e range 12...27 5 Vrms 12...460 Vrms
Maximum repetitive blocking voltage
(voltage limited by varis t or) 600 VS
(450 VS)1,000 VS
(720 VS)
Maximum surge current (ITSM, 10 ms)
(see surge current gradient page 13) 100 AS
Leakage current at nominal switching voltage
(50 Hz) 0.3 mArms
Peak load integra l (I2t, 10 ms) 50 A2s
Critical rate of rise on-state current (di/dt) 20 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max.
swit ching current 1.6 VS
Operating frequency range 10...440 Hz
Maximu m on tim e 0.1 ms
Maximum off time 10 ms
Insulation
Test voltage between control circuit and
swit ching circuit 4 kVrms
General data
Operating temperature range −40...+80 °C
Storage temperature range −40...+150 °C
Capac ity be tween c ontrol circu it and swi tchin g
circuit 8 pF
Weight appro x. 20 g
Approvals VDE, UL
N.B.: Clearances and creepage distances in accordance with EN 60950:1992+A1/DIN EN 60950 (VDE 0805):11.93
Siemens AG 13
Solid State Relays (SSR)
Type B404
Maximum accidental overload current (not periodical): ITSM
Max. switching current depending on ambient temperature
Surge current [A]
Number of periods
Switching current [Arms]
Ambient tempera ture [°C]
Control voltage < 10 V
Control voltage > 10 V
14 Siemens AG
Solid State Relays (SSR)
Types A2 and A8
Dimension drawing (mm) one-phase SSR
Terminal assignment
Simplified circuit diagram
Mounting
Screw terminals for two single-wire cables up to 6 mm2 for the switching circuit and up to 4mm² for the control circuit with
cable clamps.
Bus bars and heat sinks intended to be unaffected by additional strain and pressure. Power supply leads must have a cross-
section sufficient to avoid heating up the relay. This applies particularly to direct mounting with preconnected fuse s.
Illustration approximately 2/3 of the original size
Tolerances:
ECR0981-J
Trigger
switching Control
switching
Siemens AG 15
Solid State Relays (SSR)
Types A2 and A8
Shock-hazard protection against the voltage-carrying terminal clips, in unprotected systems.
Dimension drawing (mm)
Plastic cap
Illustration approximately 2/3 of the original size
Approximate weight: 8 g
Ordering code V23100-Z2008
ECR0981-X
16 Siemens AG
Solid State Relays (SSR)
Single-phase ty pe A2
Single-phase SSR up to 280 V switching voltage with zero voltage switch
Ordering code V23100 -S0302-A210 -S0302-A225 -S0302-A240
Control circuit (typical values at 20 °C)
Minimum control voltage 4 V−
Maximu m control volta g e 30 V−
Minimum control current 5 mA−
Maximum control current 30 mA−
Release voltage 1 V−
Control circuit resistance 1,000 Ω
Switching circuit (typical values at 20 °C)
Zero voltage switch yes
Max. switching current (see characteristic pages 24...28) 10 Arms 25 Arms 40 Arms
Minimum switching current 5 mArms
Nominal switching voltage 230 Vrms
Switching voltage range 12...280 Vrms
Maximum repetitive blocking voltage 600 VS
Zero voltage range ± 10 VS
Maximum surge current (ITSM,10 ms) 120 AS250 AS350 AS
Peak load integra l (I²2t, 10 ms) 72 A2s 312 A2s610 A²
2
s
Leakage current at nominal switching current (50 Hz) 3 mArms
Critical rate of rise on-state current (di/dt) 100 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching current 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 10 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching circuit 4 kVrms
Test voltage between control circuit and ground 2.5 kVrms
Test voltage between switching circuit and ground 2.5 kVrms
Insulation resistanc e 1010 Ω
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+125 °C
Capacity between control circuit and switching circuit 8 pF
Weight approx. 115 g
Approvals UL
N.B.:Preferred standard types - SBS - main types
Siemens AG 17
Solid State Relays (SSR)
Single-phase type A2
Single-phase SSR up to 280 V switching voltage with zero voltage switch
Ordering code V23100 -S4032-A210 -S4032-A225 -S4032-A240
Control circuit (typical values at 20 °C)
Minimum control voltage 4 V−
Maximum control voltage 30 V−
Minimum control current 5 mA−
Maxi mu m con t ro l cur rent 30 mA−
Release voltage 1 V−
Control circuit resistance 1,000 Ω
Switching circuit (typical values at 20 °C)
Zero voltage switch yes
Max. switching current (see characteristic page 24...28) 10 Arms 25 Arms 40 Arms
Minimum switching current 5 mArms
Nominal switching voltage 230 Vrms
Switching vol t ag e range 12...280 Vrms
Maximum repetitive blocking voltage 600 VS
Zero voltage range ± 10 VS
Maximum surge current (ITSM,10 ms) 120 AS250 AS350 AS
Peak load integra l (I²2t, 10 ms) 72 A2s 312 A²2s610 A²
2
s
Leakage current at nominal switching voltage (50 Hz) 3 mArms
Critical rate of rise on-state current (di/dt) 100 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching current 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 10 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching circuit 4 kVrms
Test voltage between control circuit and ground 4 kVrms
Test voltage between switching circuit and ground 4 kVrms
Insulation resistance 1010 Ω
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+125 °C
Capacity between control circuit and switching circuit 8 pF
Weight approx. 115 g
Approvals UL, VDE
N.B: Clearances and creepage distances in accordance with EN 60950: 1988 / DIN VDE 0805/5.90
18 Siemens AG
Solid State Relays (SSR)
Single-phase ty pe A8
Single-phase SSR up to 520 V switching voltage with zero voltage switch
Ordering code V23100 -S2034-A810 -S2034-A825 -S2034-A840
Control circuit (typical values at 20 °C)
Minimum control voltage 5 V−
Maximu m control volta g e 30 V−
Minimum control current 5 mA−
Maximum control current 30 mA−
Release voltage 1 V−
Control circuit resistance 1,000 Ω
Switching circuit (typical values at 20 °C)
Zero voltage switch yes
Max. switching current (see characteristic pages 24...28) 10 Arms 25 Arms 40 Arms
Minimum switching current 5 mArms
Nominal switching voltage 400 Vrms
Switching voltage range 24...520 Vrms
Maximum repetitive blocking voltage 1,200 VS
Zero voltage range ± 20 VS
Maximum surge current (ITSM,10 ms) 120 AS230 AS350 AS
Peak load integra l (I2t, 10 ms) 72 A2s 265 A2s610 A
2
s
Leakage currrent at nominal switching voltage (50 Hz) 3 mArms
Critical rate of rise on-state current (di/dt) 100 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching current 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 10 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching circuit 4 kVrms
Test voltage between control circuit and ground 2.5 kVrms
Test voltage between switching circuit and ground 2.5 kVrms
Insulation resistanc e 1010 Ω
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+125 °C
Capacity between control circuit and switching circuit 8 pF
Weight approx. 115 g
Approvals UL
Siemens AG 19
Solid State Relays (SSR)
Single-phase type A8
Single-phase SSR up to 520 V switching voltage without zero voltage switch
Ordering code V23100 -S2234-A825 -S2234-A840
Control circuit (typical values at 20 °C)
Minimum control voltage 5 V−
Maximum control voltage 30 V−
Minimum control current 5 mA−
Maximum control current 30 mA−
Release voltage 1 V−
Control circuit resistance 1,000 Ω
Switching circuit (typical vallues at 20 °C)
Zero voltage switch no
Max. switching current
(see characteristic page 24...28) 25 Arms 40 Arms
Minimum switching current 5 mArms
Nominal switching voltage 400 Vrms
Switching voltage range 24...520 Vrms
Maximum repetitive blocking voltage 1,200 VS
Zero switching range −
Maximum surge current (ITSM, 10 ms) 230 AS350 AS
Peak load integra l (I²2t, 10 ms) 265 A2s610 A²
2
s
Leakage current at nom. switching voltage (50 Hz) 3 mArms
Critical rate of rise on-state currrent (di/dt) 100 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching current 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 0.05 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching
circuit 4 kVrms
Test voltage between control circuit and ground 2.5 kVrms
Test voltage between switching circuit and ground 2.5 kVrms
Insulation resistance 1010 Ω
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+125 °C
Capacity between control circuit and switching
circuit 8 pF
Weight approx. 115 g
Approvals UL
20 Siemens AG
Solid State Relays (SSR)
Single-phase ty pe A8
Single-phase SSR up to 520 V switching voltage with zero voltage switch
Ordering code> V23100 -S4034-A810 -S4034-A825 -S4034-A840
Control circuit (typical values at 20 °C)
Minimum control voltage 5 V−
Maximu m control volta g e 30 V−
Minimum control current 5 mA−
Maximum control current 30 mA−
Release voltage 1 V−
Control circuit resistance 1,000 Ω
Switching circuit (typical values at 20 °C)
Zero voltage switch yes
Max. switching current (see characteristic page 24...28) 10 Arms 25 Arms 40 Arms
Minimum switching current 5 mArms
Nominal switching voltage 400 Vrms
Switching voltage range 24...520 Vrms
Maximum repetitive blocking value 1,200 VS
Zero voltage range ± 20 VS
Maximum surge current (ITSM,10 ms) 120 AS230 AS350 AS
Peak load integra l (I²2t, 10 ms) 72 A2s 265 A2s610 A
2
s
Leakage current at nominal switching voltage (50 Hz) 3 mArms
Critical rate of rise on-state current (di/dt) 100 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching current 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 10 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching circuit 4 kVrms
Test voltage between control circuit and ground 4 kVrms
Test voltage between switching circuit and ground 4 kVrms
Insulation resistanc e 1010 Ω
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+125 °C
Capacity between control circuit and switching circuit 8 pF
Weight approx. 115 g
Approvals UL, VDE
N.B.: Clearances and creepage distances in accordance with EN 60950: 1988 / DIN VDE 0805/5.90
Siemens AG 21
Solid State Relays (SSR)
Single-phase type A8
Single-phase SSR up to 520 V switching voltage with zero voltage switch
Ordering code V23100 -S4034-A870 -S4034-A811
Control circuit (typical values at 20 °C)
Minimum control voltage 5 V−
Maxi mu m con t ro l volta g e 30 V−
Minimum control current 5 mA−
Maximum control current 30 mA−
Release voltage 1 V−
Control circuit resistance 1,000 Ω
Switching circuit (typical values at 20 °C)
Zero voltage switch yes
Max. switching current
(see characteristic page 24...28) 70 Arms 110 Arms
Minimum switching current 5 mArms
Nominal switching voltage 400 Vrms
Switching voltage range 24...520 Vrms
Maximum repetitive blocking voltage 1,200 VS
Zero voltage range ± 20 VS
Maximum surge current (ITSM, 10 ms) 500 AS1600 AS
Peak load integra l (I2²t, 10 ms) 1,250 A²2s 12,750 A²2s
Leakage current at nom. switching voltage (50 Hz) 3 mArms
Critical rate of rise on-state current (di/dt) 100 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching current 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 10 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching
circuit 4 kVrms
Test voltage between control circuit and ground 2.5 kVrms
Test voltage between switching circuit and ground 2.5 kVrms
Insulation resistance 1010 Ω
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+125 °C
Capacity between control circuit and switching
circuit 8 pF
Weight approx. 115 g
Approvals −
22 Siemens AG
Solid State Relays (SSR)
Single-phase ty pe A8
Single-phase SSR up to 520 V switching voltage without zero voltage switch
Ordering code V23100 -S4334-A810 -S4334-A835 -S4334-A840
Control circuit (typical values at 20 °C)
Minimum control voltage 5 V−
Maximu m control volta g e 30 V−
Minimum control current 5 mA−
Maximum control current 30 mA−
Release voltage 1 V−
Control circuit resistance 1,000 Ω
Switching circuit (typical values at 20 °C)
Zero voltage switch no
Max. switching current (see characteristic page 24...28) 10 Arms 25 Arms 40 Arms
Minimum switching current 5 mArms
Nominal switching voltage 400 Vrms
Switching voltage range 24...520 Vrms
Maximum repetitive blocking voltage 1,200 VS
Zero voltage range −
Maximum surge current (ITSM,10 ms) 120 AS230 AS350 AS
Peak load integra l (I²2t, 10 ms) 72 A2s 265 A2s610 A
2
s
Leakage current at nominal switching voltage (50 Hz) 3 mArms
Critical rate of rise on-state current (di/dt) 100 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching current 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 0.05 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching circuit 4 kVrms
Test voltage between control circuit and ground 4 kVrms
Test voltage between switching circuit and ground 4 kVrms
Insulation resistanc e 1010 Ω
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+125 °C
Capacity between control circuit and switching circuit 8 pF
Weight approx. 115 g
Approvals UL, VDE
N.B.: Clearances and creepage distances in accordance with EN 60950: 1988 / DIN VDE 0805/5.90
Siemens AG 23
Solid State Relays (SSR)
Single-phase type A8
Single-phase SSR up to 520 V switching voltage without zero voltage switch
Ordering code V23100 -S4334-A870 -S4334-A811
Control circuit (typical vales at 20 °C)
Minimum control voltage 5 V−
Maximum control voltage 30 V−
Minimum control current 5 mA−
Maximum control current 30 mA−
Release voltage 1 V−
Control circuit resistance 1,000 Ω
Switching circuit (typical values at 20 °C)
zero volta ge switch no
Max. switching current
(see characteristic page 24...28) 70 Arms 110 Arms
Minimum switching current 5 mArms
Nominal switching voltage 400 Vrms
Switching voltage range 24...520 Vrms
Maximum repetitive blocking voltage 1,200 VS
Zero voltage range −
Maximum surge circuit (ITSM, 10 ms) 500 AS1600 AS
Peak load integra l (I²2t, 10 ms) 1,250 A2s 12,750 A2s
Leakage currrent at nom. switching voltage (50 Hz) 3 mArms
Critical rate of rise on-state current (di/dt) 100 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching current 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 0.05 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching
circuit 4 kVrms
Test voltage between control circuit and ground 2.5 kVrms
Test voltage between switching circuit and ground 2.5 kVrms
Insulation resistance 1010 Ω
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+125 °C
Capacity between control circuit and switching
circuit 8 pF
Weight approx. 115 g
Approvals −
24 Siemens AG
Solid State Relays (SSR)
Types A2 and A8
Charac teristi cs for 10 Arms single-phase SSR types
Performance diagrams for the selection of the heat sink
Maximum accidental overload current ITSM (not
periodical) Important information:
Performan ce diagrams:
In order to reach the prescribed c urrent values, mounting
must ta ke p lace on a finned hea t s ink or a cooli ng p la te. T he
perfor ma nce di agra ms sh ow ho w the thermal resistance of
the heat sink appropriate to the relay can be determined
independently of the load current and the ambient tempera-
ture.
The thermal re sis tanc e only app lie s to heat sinks wi th ve rti-
cal cooling ribs. A safety factor (30%) must be taken into
account under difficult conditions (e.g. switching cabinet
without ventilation...).
Maximum surge current:
If loaded with the maximum surge current, the permitted
junction temperature is exceeded. A temporary loss of block-
ing ability can be anticipated. It is necessary to disconnect
from the mains. Switching on again is permitted only after
coolin g down to the crystal temperatu re permit ted for norma l
operation. The maximum surge current may be utilized only
occasionally, i.e. in the event of a malfunction.
Ambient temperature [°C]Load current [A]
Average power dissipation [W]
without heat sink
400 Vrms
230 Vrms
Surge current [Arms]
Number of periods ( 50 Hz)
Siemens AG 25
Solid State Relays (SSR)
Types A2 and A8
Characteristi cs for 25 A rms phasing SSR types
Performance diagrams for the selection of the heat sink
Maximum surge current ITSM (not periodical) Important information:
Performance diagrams:
In order to reach the prescribed current values, mounting
must tak e p lac e o n a finned hea t si nk or a coo li ng plate. Th e
perfor man ce dia gra ms sh ow ho w the thermal resistance of
the heat sink appropriate to the relay can be determined
independently of the load current and the ambient tempera-
ture.
The thermal resistance only applies to heat sinks with verti-
cal cooling ribs. A safety factor (30%) must be taken into
account under difficult conditions (e.g. switching cabinet
without ventilation...).
Maximum surge current:
If loaded with the maximum surge current, the permitted
junctio n tem pera t ure is ex ce ede d. A temp orary loss of bloc k-
ing ability can be anticipated. It is necessary to disconnect
from the mains. Switching on again is permitted only after
coolin g down to the crys tal temper ature permitt ed for normal
operation. The maximum surge current may be utilized only
occasionally, i.e. in the event of a malfunction.
Ambient temperature [°C]
Load current [A]
Average power dissipation [W]
without heat sink
Surge current [Arms]
Number of periods (50 Hz)
230 Vrms types
400 Vrms typ es
26 Siemens AG
Solid State Relays (SSR)
Types A2 and A8
Charac teristi cs for 40 Arms single-phase SSR types
Performance diagrams for the selection of the heat sink
Maximum accidental overload current ITSM (not
periodical) Important information:
Performan ce diagrams:
In order to reach the prescribed c urrent values, mounting
must ta ke p lace on a finned hea t s ink or a cooli ng p la te. T he
perfor ma nce di agra ms sh ow ho w the thermal resistance of
the heat sink appropriate to the relay can be determined
independently of the load current and the ambient tempera-
ture
The thermal re sis tanc e only app lie s to heat sinks wi th ve rti-
cal cooling ribs. A safety factor (30%) must be taken into
account under difficult conditions (e.g. switching cabinet
without ventilation...)
Maximum surge current:
If loaded with the maximum surge current, the permitted
junction temperature is exceeded. A temporary loss of block-
ing ability can be anticipated. It is necessary to disconnect
from the mains. Switching on again is permitted only after
coolin g down to the crystal temperatu re permit ted for norma l
operation. The maximum surge current may be utilized only
occasionally, i.e. in the event of a malfunction.
Ambient temperature [°C]
Load current [A]
Average power dissipation [W]
without heat sink
Surge current [Arms]
Number of periods (50 Hz)
Siemens AG 27
Solid State Relays (SSR)
Types A2 and A8
Characteristi cs for 70 A rms single-phase SSR types
Performance diagrams for the selection of the heat sink
Maximum accidental overload current ITSM (not
periodical) Important information:
Performance diagrams:
In order to reach the prescribed current values, mounting
must tak e p lac e o n a finned hea t si nk or a coo li ng plate. Th e
perfor man ce dia gra ms sh ow ho w the thermal resistance of
the heat sink appropriate to the relay can be determined
independently of the load current and the ambient tempera-
ture
The thermal resistance only applies to heat sinks with verti-
cal cooling ribs. A safety factor (30%) must be taken into
account under difficult conditions (e.g. switching cabinet
without ventilation...)
Maximum surge current:
If loaded with the maximum surge current, the permitted
junctio n tem pera t ure is ex ce ede d. A temp orary loss of bloc k-
ing ability can be anticipated. It is necessary to disconnect
from the mains. Switching on again is permitted only after
coolin g down to the crys tal temper ature permitt ed for normal
operation. The maximum surge current may be utilized only
occasionally, i.e. in the event of a malfunction.
Ambient temperature [°C]
Load current [A]
Average power dissipation [W]
without heat sink
Surge current [Arms]
Number of half-periods (50 Hz)
28 Siemens AG
Solid State Relays (SSR)
Types A2 and A8
Charac teristi cs for 110 Arms single-phase SSR types
Performance diagrams for the selection of the heat sink
Maximum accidental overload current ITSM (not
periodical) Important information:
Performan ce diagrams:
In order to reach the prescribed c urrent values, mounting
must ta ke p lace on a finned hea t s ink or a cooli ng p la te. T he
perfor ma nce di agra ms sh ow ho w the thermal resistance of
the heat sink appropriate to the relay can be determined
independently of the load current and the ambient tempera-
ture
The thermal re sis tanc e only app lie s to heat sinks wi th ve rti-
cal cooling ribs. A safety factor (30%) must be taken into
account under difficult conditions (e.g. switching cabinet
without ventilation...)
Maximum surge current:
If loaded with the maximum surge current, the permitted
junction temperature is exceeded. A temporary loss of block-
ing ability can be anticipated. It is necessary to disconnect
from the mains. Switching on again is permitted only after
coolin g down to the crystal temperatu re permit ted for norma l
operation. The maximum surge current may be utilized only
occasionally, i.e. in the event of a malfunction.
Ambient temperature [°C]Load current [A]
Average power dissipation [W]
without heat sink
Surge current [Arms]
Number of current pulses
Half-peri od (60 Hz)
Half-peri od (50 Hz)
Full per iod (60 Hz)
Full per iod (50 Hz)
Siemens AG 29
Solid State Relays (SSR)
Type C2
Dimension drawing (mm) three-phase SSR
Terminal assignment
Mounting
Screw terminals for two single-wire cables up to 6 mm2 for the switching circuit and up to 4 mm² for the control circuit with
cable clamps.
Bus bars and heat sinks intended to be unaffected by additional strain and pressure. Power supply leads must have a cross-
section sufficient to avoid heating up the relay. This is particularly true for direct mounting with preconnected fuses.
Illustration approximately 2/3 of the orginal size
ECR0983-J
Trigger
switchin
g
Trigger
switchin
g
Trigger
switchin
g
Trigger
switchin
g
Trigger
switchin
g
Trigger
switchin
g
SSR with AC control circuit SSR with DC control circuit
30 Siemens AG
Solid State Relays (SSR)
Type C2
Dimension drawing (mm) plastic cap
Approximat e weight: 27,2 g
Shock-hazard protection against the voltage-carrying connection clips, in unprotected systems.
Ordering code V23100-Z2009
Siemens AG 31
Solid State Relays (SSR)
Type C2
Three-phase SSR up to 520 V switching voltage with zero voltage switch,
dust-protected
Ordering code V23100 -S3712-C240 -S3621-C240 -S3712-C270
Control cicuit (typical values at 20 °C)
Minimum control voltage 5 V−80 V~ 5 V−
Maximum control voltage 30 V−240 V~ 30 V−
Minimum control current 19 mA−4 mA~ 19 m A−
Maxi mu m con t ro l cur rent 110 mA−11 mA~ 110 mA−
Release voltage 2 V−5 V~ 2 V−
Control circuit resistance 270 Ω22 kΩ270 Ω
Switching circuit (typical values at 20 °C)
Zero voltage switch yes
Max. switching current (see characteristic page 18...22) 40 Arms 70 Arms
Minimum switching current 5 mArms
Nominal switching current 400 Vrms
Switching vol t ag e range 24...520 Vrms
Maximum repetitive blocking current (current limited by varistor) 1,200 VS
(800 VS)
Zero switching range ± 20 VS
Maximum surge current (ITSM,10 ms) 350 AS500 AS
Peak load integra l (I2t, 10 ms) 610 A2s 1250 A2s
Leakage current at nominal switching voltage (50 Hz) < 4 mArms
Critical rate of rise on-state current (di/dt) 20 A/µs
Critical rate of rise off-state voltage (du/dt) 500 V/µs
Max. on-state voltage at max. switching voltage 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 10 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching circuit 4 kVrms
Test voltage between control circuit and ground 2.5 kVrms
Test voltage between switching circuit and ground 2.5 kVrms
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+150 °C
Capacity between control circuit and switching circuit 8 pF
Weight approx. 300 g
Approvals on request
N.B.: Other versions of three-phase SSRs available on request
32 Siemens AG
Solid State Relays (SSR)
Type C2
Three-phase SSR type C2 up to 520 V switching voltage without zero voltage switch,
dust-protected
Ordering code V23100 -S5712-C240 -S5621-C240 -S5712-C270
Control circuit (typical values at 20 °C)
Minimum control voltage 5 V−80 V~ 5 V−
Maximum control voltage 30 V−240 V~ 30 V−
Minimum control current 19 mA−4 mA~ 19 mA−
Maximum control curr ent 110 mA−11 mA~ 110 mA−
Release voltage 2 V−5 V~ 2 V−
Control circuit resistance 270 Ω22 kΩ270 Ω
Switching circuit (typical values at 20 °C)
Zero voltage switch no
Max. switching current (see characteristic page 18...22) 40 Arms 70 Arms
Minimum switching current 5 mArms
Nominal switching voltage 400 Vrms
Switching voltage range 24...520 Vrms
Maximum repetitive blocking voltage
(Voltage limited by varistor) 1,200 VS
(800 VS)
Zero voltage range −
Maximum surge current (ITSM,10 ms) 350 AS500 AS
Peak load integra l (I²2t, 10 ms) 610 A²2s 1250 A2s
Leakage current at nominal switching voltage (50 Hz) < 4 mArms
Critical rate of rise on-state voltage(di/dt) 20 A/µs
Critical rate of rise off-state current (du/dt) 500 V/µs
Max. on-state voltage at max. switching current 1.6 VS
Operating frequency range 47...400 Hz
Maximum on time (50 Hz) 0.1 ms
Maximum off time (50 Hz) 10 ms
Insulation
Test voltage between control circuit and switching circuit 4 kVrms
Test voltage between control circuit and ground 2.5 kVrms
Test voltage between switching circuit and ground 2.5 kVrms
General data
Operating temperature range −40...+90 °C
Storage temperature range −40...+150 °C
Capacity between control circuit and switching circuit 8 pF
Weight approx. 300 g
Approvals on request
N.B.: Other versions of three-phase SSRs on request
Siemens AG 33
Solid State Relays (SSR)
Type C2
Characteristi cs for 40 A rms three- phase SSR types
Performance diagrams for the selection of the heat sink
Maximum accidental overload current ITSM (not
periodical) Important information:
Performance diagrams:
In order to reach the prescribed current values, mounting
must tak e p lac e o n a finned hea t si nk or a coo li ng plate. Th e
perfor man ce dia gra ms sh ow ho w the thermal resistance of
the heat sink appropriate to the relay can be determined
independently of the load current and the ambient tempera-
ture
The thermal resistance only applies to heat sinks with verti-
cal cooling ribs. A safety factor (30%) must be taken into
account under difficult conditions (e.g. switching cabinet
without ventilation...)
Maximum surge current:
If loaded with the maximum surge current, the permitted
junctio n tem pera t ure is ex ce ede d. A temp orary loss of bloc k-
ing ability can be anticipated. It is necessary to disconnect
from the mains. Switching on again is permitted only after
coolin g down to the crys tal temper ature permitt ed for normal
operation. The maximum surge current may be utilized only
occasionally, i.e. in the event of a malfunction.
Ambient temperature [°C]Load current [A]
Average power dissipation [W]
without heat sink
Surge current [Arms]
Number of periods (50 Hz)
34 Siemens AG
Solid State Relays (SSR)
Type C2
Charac teristi cs for 70 Arms three-phase S SR types
Performance diagrams for the selection of the heat sink
Maximum accidental overload current ITSM (not
periodical) Important information:
Performan ce diagrams:
In order to reach the prescribed c urrent values, mounting
must ta ke p lace on a finned hea t s ink or a cooli ng p la te. T he
perfor ma nce di agra ms sh ow ho w the thermal resistance of
the heat sink appropriate to the relay can be determined
independently of the load current and the ambient tempera-
ture
The thermal re sis tanc e only app lie s to heat sinks wi th ve rti-
cal cooling ribs. A safety factor (30%) must be taken into
account under difficult conditions (e.g. switching cabinet
without ventilation...)
Maximum surge current:
If loaded with the maximum surge current, the permitted
junction temperature is exceeded. A temporary loss of block-
ing ability can be anticipated. It is necessary to disconnect
from the mains. Switching on again is permitted only after
coolin g down to the crystal temperatu re permit ted for norma l
operation. The maximum surge current may be utilized only
occasionally, i.e. in the event of a malfunction.
Ambient temperature [°C]Load current [A]
Average power dissipation [W]
without heat sink
Surge current [Arms]
Number of half-periods (50 Hz)
