Specifications are subject to change without notice (08.05.2002) 1
Product Description Ordering Key
Solid State Relays
System Monitoring Relays (Sense Relay)
Type RA.... .....S
•System (line and load) monitoring relay
•Zero switching
•Rated operational current: 25, 50, 90 and 110 AACrms
•Rated operational voltage: 120, 230, 400 and 480 VACrms
•High surge current capability
•Alarm output signal
•LED indication for alarm and supply
The system monitoring solid
state relay (sense relay) pro-
vides an alarm output in the
event of a circuit failure.
Internal circuits monitor:
- line voltage/line current
- correct functioning
of the SSR
- SSR input status
The relay is designed for
applications where immediate
fault detection is required.
A red LED indicates an
alarm, a green LED indicates
DC control supply OK (half
LED light intensity) resp.
relay switched ON (full LED
light intensity).
Solid State Relay
Switching mode
Rated operational voltage
Rated operational current
Control input
Non-rep. peak voltage
Alarm output type
Sense SSR
RA 23 25 H 06 NO S
Switching mode Rated operational Rated operational Control Non-rep. peak Alarm output
voltage current input voltage type
A: Zero switching 12: 120 VACrms 25: 25 AACrms H: Active high 06: 650 VpNO: NPN, NO
23: 230 VACrms 50: 50 AACrms 10: 1000 VpNC: NPN, NC
40: 400 VACrms 90: 90 AACrms 12: 1200 VpPO: PNP, NO
48: 480 VACrms 110: 110 AACrms PC: PNP, NC
Rated Control Alarm Rated operational current
op. input output
voltage type 25 AACrms 50 AACrms 90 AACrms 110 AACrms
120 Active high NPN, NO RA 1225 H06NOS RA 1250 H06NOS RA 1290 H06NOS RA 12110 H06NOS
VACrms NPN, NC RA 1225 H06NCS RA 1250 H06NCS RA 1290 H06NCS RA 12110 H06NCS
PNP, NO RA 1225 H06POS RA 1250 H06POS RA 1290 H06POS RA 12110 H06POS
PNP, NC RA 1225 H06PCS RA 1250 H06PCS RA 1290 H06PCS RA 12110 H06PCS
230 Active high NPN, NO RA 2325 H06NOS RA 2350 H06NOS RA 2390 H06NOS RA 23110 H06NOS
VACrms NPN, NC RA 2325 H06NCS RA 2350 H06NCS RA 2390 H06NCS RA 23110 H06NCS
PNP, NO RA 2325 H06POS RA 2350 H06POS RA 2390 H06POS RA 23110 H06POS
PNP, NC RA 2325 H06PCS RA 2350 H06PCS RA 2390 H06PCS RA 23110 H06PCS
400 Active high NPN, NO RA 4025 H10NOS RA 4050 H10NOS RA 4090 H10NOS RA 40110 H10NOS
VACrms NPN, NC RA 4025 H10NCS RA 4050 H10NCS RA 4090 H10NCS RA 40110 H10NCS
PNP, NO RA 4025 H10POS RA 4050 H10POS RA 4090 H10POS RA 40110 H10POS
PNP, NC RA 4025 H10PCS RA 4050 H10PCS RA 4090 H10PCS RA 40110 H10PCS
480 Active high NPN, NO RA 4825 H12NOS RA 4850 H12NOS RA 4890 H12NOS RA 48110 H12NOS
VACrms NPN, NC RA 4825 H12NCS RA 4850 H12NCS RA 4890 H12NCS RA 48110 H12NCS
PNP, NO RA 4825 H12POS RA 4850 H12POS RA 4890 H12POS RA 48110 H12POS
PNP, NC RA 4825 H12PCS RA 4850 H12PCS RA 4890 H12PCS RA 48110 H12PCS
Type Selection
Selection Guide
2Specifications are subject to change without notice (08.05.2002)
Supply voltage range 20 to 32 VDC
Supply current @ 24 VDC ≤40 mA DC
Response time pick-up @ 50 Hz
≤10 ms
Response time drop-out @ 50 Hz
≤10 ms
Active high control input
Pick-up voltage Typ. 7 VDC
Drop-out voltage Typ. 6.8 VDC
Input current (Vc = 32 V) ≤4 mA
RA.... .....S
PNP Alarm output
Alarm output voltage open 0 VDC
Alarm output voltage @ 100 mA
Vcc - 2 VDC
Alarm output current ≤100 mA
NPN Alarm output
Alarm output voltage open ≤32 VDC
Alarm output voltage @ 100 mA
2 VDC
Alarm output current ≤100 mA
General Specifications
Control Specifications
Output Specifications
Sense Specifications
RA12...06..S RA23...06..S RA40...10..S RA48...12..S
Operational voltage range 60 to 140 VACrms 170 to 250 VACrms 150 to 440 VACrms 180 to 530 VAC
Non-rep. peak voltage 600 Vp600 Vp1000 Vp1200 Vp
Zero voltage turn-on ≤15 V ≤15 V ≤15 V ≤25 V
Operational frequency range 45 to 65 Hz 45 to 65 Hz 45 to 65 Hz 45 to 65 Hz
Power factor cos ϕ≥0.5 @ 120 VACrms ≥0.5 @ 230 VACrms ≥0.5 @ 400 VACrms ≥0.5 @ 400 VACrms
Approvals UL, CSA UL, CSA UL, CSA UL, CSA
CE-marking Yes Yes Yes Yes
RA..25.06..S RA..50.06..S RA..90.10..S RA..110.12..S
Rated operational current AC 51 ≤25 Arms ≤50 Arms ≤90 Arms ≤110 Arms
Min. operational load current ≤200 mA ≤200 mA ≤200 mA ≤200 mA
Non-rep. surge current t=10 ms
≤250 Ap≤600 Ap≤1000 Ap≤1500 Ap
Off-state leakage current
@ rated voltage and frequency ≤6 mA ≤6 mA ≤6 mA ≤6 mA
I2t for fusing t=1-10 ms ≤310 A2s≤1800 A2s≤5000 A2s≤11250 A2s
Critical dv/dt ≥500 V/µs ≥500 V/µs ≥500 V/µs ≥500 V/µs
RA..25.....S RA..50.....S RA..90.....S RA..110.....S
Current
Sensed load current ≥50 mA ≥50 mA ≥50 mA ≥50 mA
Non-sensed leakage current ≤20 mA ≤20 mA ≤20 mA ≤20 mA
Voltage
Sensed line voltage ≥60 Vrms ≥120 Vrms ≥150 Vrms ≥180 Vrms
Non-sensed line voltage ≤30 Vrms ≤50 Vrms ≤80 Vrms ≤100 Vrms
Timing
Response time from fault to
alarm output ≤100 ms ≤100 ms ≤100 ms ≤100 ms
Short-circuit of semiconductor Will be sensed Will be sensed Will be sensed Will be sensed
Specifications are subject to change without notice (08.05.2002) 3
RA.... .....S
RA..25.....S RA..50.....S RA..90.....S RA..110.....S
Operating temperature
-20° to +70°C -20° to +70°C -20° to +70°C -20° to +70°C
(-4° to +158°F) (-4° to +158°F) (-4° to +158°F) (-4° to +158°F)
Storage temperature
-40° to +100°C -40° to +100°C -40° to +100°C -40° to +100°C
(-40° to +212°C) (-40° to +212°C) (-40° to +212°C) (-40° to +212°C)
Junction temperature ≤125°C (257ºF) ≤125°C (257ºF) ≤125°C (257ºF) ≤125°C (257ºF)
Rth junction to case ≤1.25 K/W ≤0.65 K/W ≤0.35 K/W ≤0.30 K/W
Rth junction to ambient ≤12 K/W ≤12 K/W ≤12 K/W ≤12 K/W
Mains input/load output
Load output/mains input
C/V
VCC
Control
input
Com.
Alarm
output
Rated insulation voltage
Input to output ≥4000 VACrms
Rated insulation voltage
Output to case ≥4000 VACrms
C/V
IC
Alarm output
Control input
+ 3
6
7
4
2
1
Line/load
RAxxxxxxNxS
1
+ 3
6
7
4
IC
Alarm output
Control input
2
Line/load
RAxxxxxxPxS
4 -
5 Not con.
3 +
6 Control
7 Alarm
Thermal Specifications
Insulation Wiring Diagrams
Functional Diagram
Normal Operation
Relay Relay
OFF ON
Line
Voltage
Loss
Line
Voltage
Loss
Load
Open
Circuit
DC
Supply
Loss
DC
Supply
Loss
Relay
Remains
OFF
Shorted
Relay Shorted
Relay
Line Voltage
= Half LED light intensity
Operation Diagram
Load Current
Control
Green LED
DC Supply
Red LED
Alarm output (normally open type)
4Specifications are subject to change without notice (08.05.2002)4Specifications are subject to change without notice (08.05.2002)
0.92 0.76 0.60 0.45 0.29 - 63
1.2 0.99 0.80 0.62 0.44 0.26 55
1.5 1.3 1.1 0.85 0.63 0.42 47
1.9 1.6 1.4 1.1 0.89 0.63 40
2.4 2.1 1.8 1.5 1.2 0.91 33
3 2.7 2.3 1.9 1.5 1.1 26
3.9 3.5 3 2.5 2 1.5 20
5.5 4.8 4.1 3.4 2.7 2.1 15
8.6 7.5 6.4 5.4 4.3 3.2 9
17.9 15.6 13.4 11.2 8,9 6.7 4
20 30 40 50 60 70
50
45
40
35
30
25
20
15
10
5
RA ..90 .....S
RA ..25 .....S RA ..50 .....S
TA
Ambient temp. [°C]
Power dissipa-
tion [W]
Thermal resistance
[K/W]
Load
current [A]
Power dissipa-
tion [W]
2 1.7 1.4 1 0.71 0.40 32
2.5 2.1 1.8 1.4 1 0.66 27
3.1 2.7 2.3 1.9 1.4 1 23
4 3.5 3 2.5 2 1.4 20
4.9 4.3 3.7 3.1 2.5 1.9 16
6.2 5.4 4.6 3.9 3.1 2.3 13
8.1 7.1 6.1 5.1 4 3 10
11.3 9.9 8.5 7.1 5.6 4.2 7
- 15.6 13.3 11.1 8.9 6.7 5
- - - - 18.7 14 2
20 30 40 50 60 70
25
22.5
20
17.5
15
12.5
10
7.5
5
2.5
TA
Ambient temp. [°C]
Load
current [A] Thermal resistance
[K/W]
90
80
70
60
50
40
30
20
10
0.63 0.53 0.42 0.32 - - 97
0.81 0.69 0.57 0.45 0.33 - 84
1 0.89 0.75 0.61 0.47 0.33 71
1.3 1.2 1 0.83 0.66 0.49 59
1.7 1.5 1.3 1.1 0.85 0.64 47
2.2 1.9 1.7 1.4 1.1 0.83 36
3.1 2.7 2.3 1.9 1.5 1.2 26
4.8 4.2 3.6 3 2.4 1.8 17
10 8.8 7.5 6.3 5 3.8 8
20 30 40 50 60 70 TA
Ambient temp. [°C]
Thermal resistance
[K/W]
Load
current [A] Power dissipa-
tion [W]
RA.... .....S
Heatsink Dimensions (load current versus ambient temperature)
Housing Specifications
Weight Approx. 110 g
Housing material Noryl GFN 1, black
Base plate Aluminium, nickel-plated
Potting compound Polyurethane
Relay
Mounting screws M5
Mounting torque ≤1.5 Nm
Power terminal
Mounting screws M5 x 6
Mounting torque ≤2.4 Nm
Control connector 5 pole,
centre distance 2.54 mm
RA ..110 .....S
TA
Ambient temp. [°C]
0.43 0.35 0.27 - - - 126
0.63 0.53 0.42 0.32 - - 97
0.81 0.69 0.57 0.45 0.33 - 84
1 0.89 0.75 0.61 0.47 0.33 71
1.3 1.2 1 0.83 0.66 0.49 59
1.7 1.5 1.3 1.1 0.85 0.64 47
2.2 1.9 1.7 1.4 1.1 0.83 36
3.1 2.7 2.3 1.9 1.5 1.2 26
4.8 4.2 3.6 3 2.4 1.8 17
10 8.8 7.5 6.3 5 3.8 8
20 30 40 50 60 70
110
90
80
70
60
50
40
30
20
10
Power dissipa-
tion [W]
Thermal resistance
[K/W]
Load
current [A]
Carlo Gavazzi
Heatsink Thermal ...for power
(See “General Accessories”) resistance.. dissipation
No heatsink required --- N/A
RHS 300 5.00 K/W > 0 W
RHS 100 3.00 K/W > 25 W
RHS 45A 2.70 K/W > 60 W
RHS 45B 2.00 K/W > 60 W
RHS 90 1.35 K/W > 60 W
RHS 45A plus fan 1.25 K/W > 0 W
RHS 45B plus fan 1.20 K/W > 0 W
RHS 112 1.10 K/W > 100 W
RHS 301 0.80 K/W > 70 W
RHS 90 plus fan 0.45 K/W > 0 W
RHS 112 plus fan 0.40 K/W > 0 W
RHS 301 plus fan 0.25 K/W > 0 W
Consult your distributor > 0.25 K/W N/A
Infinite heatsink - No solution
--- N/A
Heatsink Selection
Specifications are subject to change without notice (08.05.2002) 5
RA.... .....S
R-System
Cable sense
5-wire
Cable length in cm
*0: No connector mounted (Method 1300-105-424)
1: 1 connector mounted
2: 2 connectors mounted
Heatsinks
DIN rail adapter
Varistors
Fuses
Connector for ribbon cable: Methode 1300-105-424
Header for PCB mounting: Methode 1100-8-105-01
Ribbon cable: 5 x 0.5 mm2,
centre distance 2.54 mm
ALARM LED
SUPPLY LED
5.2 13
2 x M5
APPLY
HEATSINK
COMPOUND
17.8 5.1
58.245.5
5.3
14.5
4 x M
M = 2.54
47.5
29
24.5
All dimensions in mm
Dimensions Accessories
Ribbon Cable Selection
RCS 5-200-0*
