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2019.03
TYPICAL APPLICATIONS
FEATURES
SP RELAYS
2c 15A, 4c 10A polarized
power relays
1. Small, slim form factor
Facilitating the form factor reduction of
devices, the overall height of the relay
package is less than half that of our HP
relay.
2. High sensitivity
The high-e󰀩ciency polarized
electromagnetic mechanism in
conjunction with our exclusive spring
alignment method achieves levels of
sensitivity higher than relays that have
been available up to now. For both the
2 Form C and 4 Form C single side
stable and 2 coil latching types, the
150 mW minimum operating power
level allows direct driving by transistor
or chip controllers.
3. High reliability and long life
With a structure that ensures almost
perfectly complete twin contact and
minimal contact bounce, you get
greater reliability than has so far been
provided by power relays.
1. Electrical power device
2. Robots
3. Railway signal equipment
4. Latching types also available
1 coil latching and 2 coil latching types
are available. In cases where it was
formerly unavoidable to use plural
relays for large power memory, you
can now use a single SP relay.
5. Strong resistance to vibration and
shock
Our balanced armature technology
well withstands vibration and shocks. It
provides strong resistance to vibration
and shock.
6. Terminals and mounting boards are
available
20.520.5
20.5
20.5
50
50
50
50
25.6
25.6
36.8
36.8
（Unit：mm）
Protective construction：Dust cover type
Automation Controls Catalog
SP
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RATING
1. Coil data
• Operating characteristics such as ‘Operate voltage’ and ‘Release voltage’ are inuenced by mounting conditions, ambient temperature, etc.
Therefore, please use the relay within ± 5% of rated coil voltage.
• ‘Initial’ means the condition of products at the time of delivery.
ORDERING INFORMATION
TYPES
SP
Contact arrangement
2：2 Form C
4：4 Form C
Operating function
Nil：Single side stable
　L：1 coil latching
　
L2：2 coil latching
Terminal shape
Nil：Plug-in type
P：PC board type
Nominal coil voltage
（DC）
3, 5, 6, 12, 24, 48V
Notes：1. PC board type and 1 coil latching type are manufactured by lot upon receipt of order.
2. Certified by UL, CSA and TÜV
Standard packing (2 Form C): Carton: 20 pcs.; Case: 200 pcs.
Standard packing (4 Form C): Carton: 10 pcs.; Case: 100 pcs.
Note: PC board type and 1 coil latching type are manufactured by lot upon receipt of order.
* Terminal sockets and mounting boards available.
Contact arrangement Nominal coil voltage Single side stable 2 coil latching
Part No. Part No.
2 Form C
3V DC SP2-DC3V SP2-L2-DC3V
5V DC SP2-DC5V SP2-L2-DC5V
6V DC SP2-DC6V SP2-L2-DC6V
12V DC SP2-DC12V SP2-L2-DC12V
24V DC SP2-DC24V SP2-L2-DC24V
48V DC SP2-DC48V SP2-L2-DC48V
4 Form C
3V DC SP4-DC3V SP4-L2-DC3V
5V DC SP4-DC5V SP4-L2-DC5V
6V DC SP4-DC6V SP4-L2-DC6V
12V DC SP4-DC12V SP4-L2-DC12V
24V DC SP4-DC24V SP4-L2-DC24V
48V DC SP4-DC48V SP4-L2-DC48V
1) Single side stable
Nominal coil
voltage
Pick-up voltage
(at 20°C 68°F)
Drop-out voltage
(at 20°C 68°F)
Nominal operating
current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)
Nominal operating
power Max. applied voltage
3V DC
70%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
100 mA 30Ω
300mW 150%V of
nominal voltage
5V DC 60.2mA 83Ω
6V DC 50 mA 120Ω
12V DC 25 mA 480Ω
24V DC 12.5mA 1,920Ω
48V DC 6.2mA 7,700Ω
2) 2 coil latching
Nominal coil
voltage
Set voltage
(at 20°C 68°F)
Reset voltage
(at 20°C 68°F)
Nominal operating
current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)
Nominal operating
power Max. applied voltage
Set coil Reset coil Set coil Reset coil Set coil Reset coil
3V DC
70%V or less of
nominal voltage
(Initial)
70%V or less of
nominal voltage
(Initial)
100mA 100mA 30Ω 30Ω
300mW 300mW 150%V of
nominal voltage
5V DC 60.2mA 60.2mA 83Ω 83Ω
6V DC 50mA 50mA 120Ω 120Ω
12V DC 25mA 25mA 480Ω 480Ω
24V DC 12.5mA 12.5mA 1,920Ω 1,920Ω
48V DC 6.2mA 6.2mA 7,680Ω 7,680Ω
SP
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2. Specications
Notes: *1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the
actual load.
*2. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to Usage, transport and storage
conditions in NOTES.
Characteristics Item Specications
Contact
Initial contact pressure 2 Form C: Approx. 0.392 N (40 g 1.41 oz), 4 Form C: Approx. 0.196 N (20 g 0.71 oz)
Arrangement 2 Form C, 4 Form C
Contact resistance (Initial) Max. 30 mΩ (By voltage drop 6 V DC 1A)
Contact material Stationary contact: Au ashed AgSnO2 type, Movable contact: AgSnO2 type
Rating
Nominal switching capacity (resistive load) 2 Form C: 15 A 250 V AC, 4 Form C: 10 A 250 V AC
Max. switching power (resistive load) 2 Form C: 3,750 VA, 300 W, 4 Form C: 2,500 VA, 300 W
Max. switching voltage 2 Form C, 4 Form C: 250 V AC, 30 V DC (48V DC: Max. 2A)
Max. switching current 2 Form C: 15 A (AC) 10 A (DC), 4 Form C: 10 A
Nominal operating power 300mW (Single side stable, 2 coil latching)
Min. switching capacity (reference value)*1100 mA 5V DC
Electrical
characteristics
Insulation resistance (Initial) (25°C, 50% relative
humidity)
Min. 1,000MΩ (at 500V DC)
Measurement at same location as “Breakdown voltage” section.
Breakdown voltage
(Initial)
Between open contacts 1,500 Vrms for 1 min. (Detection current: 10 mA)
Between contact and coil 3,000 Vrms for 1 min. (Detection current: 10 mA)
Between contact sets 3,000 Vrms for 1 min. (Detection current: 10 mA)
Operate time [Set time] (at 20°C 68°F) (Initial) Max. 30 ms [Max. 30 ms]
(Nominal coil voltage applied to the coil, excluding contact bounce time.)
Release time [Reset time] (at 20°C 68°F) (Initial) Max. 20 ms [Max. 30 ms]
(Nominal coil voltage applied to the coil, excluding contact bounce time.) (without diode)
Mechanical
characteristics
Shock resistance Functional Min. 392 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs.)
Destructive Min. 980 m/s2 (Half-wave pulse of sine wave: 6 ms.)
Vibration resistance Functional 10 to 55 Hz at double amplitude of 3 mm (Detection time: 10µs.)
Destructive 10 to 55 Hz at double amplitude of 3 mm
Expected life
Mechanical Min. 5×107 (at 180 times/min.)
Electrical (resistive load)
2 Form C:
Min. 105 (15 A 250 V AC [at 20 times/min.]), Min. 105 (10 A 30 V DC [at 20 times/min.])
4 Form C:
Min. 105 (15 A 250 V AC [at 20 times/min.]), Min. 105 (10 A 30 V DC [at 20 times/min.])
Conditions Conditions for operation, transport and storage*2Ambient temperature: –50°C to +60°C –58°F to +140°F;
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Max. operating speed 20 times/min. (at rated load)
Unit weight 2 Form C: 50 g 1.76 oz; 4 Form C: 65 g 2.29 oz
REFERENCE DATA
1.-(2) Coil temperature rise (4 Form C type)1.-(1) Coil temperature rise (2 Form C type)
15A
15A
10A
10A
5A
5A
0A
0A
Tested sample：SP2-24V DC
0
10
20
30
40
50
19.2 21.6 26.4 28.8 31.2 33.6 36.024.0
Temperature rise
（℃）
Coil applied voltage
（%V）
10A
10A
5A
5A
0A
0A
0
10
20
30
40
50
19.2 21.6 26.4 28.8 31.2 33.6 36.024.0
Tested sample：SP4-24V DC
Ambient temperature：27 to 29℃
Temperature rise
（℃）
Coil applied voltage
（%V）
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2. Electrical life (SP2, 15 A 250 V AC resistive load)
DIMENSIONS (mm)
Schematic (Bottom view)
Single side stable type
External dimensions
2 Form C
2 coil latching type
Ave.
Ave.
Max.
Max.
Min.
Min.
Ave.
Ave.
Max.
Max.
Min.
Min.
N.C.
N.O.
1 2 5 83 64 7 9 10 1 2 5 83 64 7 9 10
0
5
10
15
0
5
10
15
Release voltage
Release voltage
Operate voltage
Operate voltage
Operate and release voltage
（V）
No. of operations
（×104）
Change of operate and release voltage
Contact resistance
（mΩ）
No. of operations
（×104）
Change of contact resistance
3. Electrical life (SP4, 10 A 250 V AC resistive load)
Ave.
Ave.
Max.
Max.
Min.
Min.
Ave.
Max.
Min.
0
10
20
30
40
50
1 2 5 83 64 7 9 10 1 2 5 83 64 7 9 10
0
5
10
15
Release voltage
Release voltage
Operate voltage
Operate voltage
Operate and release voltage
（V）
No. of operations
（×104）
Change of operate and release voltage
Contact resistance
（mΩ）
No. of operations
（×104）
Change of contact resistance
N.C.
N.O.
1) Plug-in terminal 2) PC board type
External dimensions
501
25.6
20.5
7
.15
1.5
4.75
10.16
10.16 10.16 10.16
15.24
0.5
10
FASTON #187
Note：Diagram shows the
“reset”
position when terminals 3 and 4 are energized.
Energize terminals 1 and 2 to transfer contacts.
General tolerance ±0.3
15.24
10.
16 10.
16 10.
16 10.
16
Tolerance ±0.1
10ｰ2.5dia.
PC board pattern (Bottom view)
1 5 6 7
2 8 9 10
－
＋
1 5 6 7
2
3
48 9 10
－
＋
－
＋
(Deenergized condition)
(Reset condition)
501
25.6
20.55.5
1.5
2
10.16 10.16 10.16 10.16
15.24
0.5
10
General tolerance ±0.3
CAD CAD
CAD The CAD data of the products with a “CAD” mark can be downloaded from our Website.
SP
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Schematic (Bottom view)
Single side stable type
External dimensions
4 Form C
2 coil latching type
1) Plug-in terminal 2) PC board type
External dimensions
PC board pattern (Bottom view)
(Deenergized condition)
(Reset condition)
501
36.8
20.5
7
.15
1.5
4.75
10.16
10.16 10.16 10.16
15.24
7.62 7.62
0.5
10
FASTON #187
Note：Diagram shows the
“reset”
position when terminals 3 and 4 are energized.
Energize terminals 1 and 2 to transfer contacts.
General tolerance ±0.3
501
36.8
20.55.5
1.5
2
10.16 10.16 10.16 10.16
15.24 7
.627
.62
0.5
10
General tolerance ±0.3
15.24
10.
16 10.
16 10.
16 10.
16
16ｰ2.5dia.
Tolerance ±0.1
7
.627
.62
15 6 7
28 9 10
－
＋
14 15 16
11 12 13
1 5 6 7
2
3
48 9 10
－
＋
－
＋
14 15 16
11 12 13
SAFETY STANDARDS
Item UL (Recognized) CSA (Certied) TÜV (Certied)
File No. Contact rating File No. Contact rating File No. Contact rating Cycles
2 FormC E43028 15A 250V AC General Use LR26550 15A 250V AC General Use B 11 08
13461 308
15A 250V AC (cosφ =1.0) 105
1/2HP 125, 250V AC 1/2HP 125, 250V AC 10A 30V DC (0ms) 105
10A 30V DC 10A 30V DC — —
4 FormC E43028 10A 250V AC General Use LR26550 10A 250V AC General Use B 11 08
13461 308
10A 250V AC (cosφ =1.0) 105
1/3HP 125, 250V AC 1/3HP 125, 250V AC 10A 30V DC (0ms) 105
10A 30V DC 10A 30V DC — —
NOTES
1. For cautions for use, please read “GENERAL APPLICATION GUIDELINES”.
Please refer to "the latest product specications"
when designing your product.
• Requests to customers :
https://industrial.panasonic.com/ac/e/salespolicies/
CAD CAD
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2019.03
TYPES
SP RELAYS
TERMINAL SOCKETS
ACCESSORIES
Product name Part No.
SP2 Terminal socket SP2-SF
SP4 Terminal socket SP4-SF
DIMENSIONS (mm)
SP2 Terminal socket SP4 Terminal socket
40.64±0.4
20.32±0.4
67±1
15.24±0.4
20.3±0.6
ＳＰ relay
23±1
52±1
6.5±0.4
4.5±0.44.5±0.4
30±0.630±0.6
Mounting pitch
General tolerance ±0.5
Screw
：Ｍ3.5
Note
：
Terminal number marking is on the socket body.
Please refer together with the SP relay schematic.
40.64±0.4
20.32±0.4
30±0.630±0.6
4.5±0.3
4.5±0.3
6.5±0.3
Mounting pitch
97±1
52±1
30.48±0.4
32.8±0.6
20.3±0.620.3±0.6
40.5±0.6
23±1
70.5±1
ＳＰ relay
15.24±0.415.24±0.4
11±0.4 21±0.4
Screw
：Ｍ3.5
General tolerance ±0.5
Note
：
Terminal number marking is on the socket body.
Please refer together with the SP relay schematic.
Part No.: SP2-SF Part No.: SP4-SF
Mounting hole diagram Fastening bracket mounting and removal
Notes
：
1
.Mounting screws and the fastening
bracket are included in the package.
2.
Mount the relay with the proper mounting
direction
i.e. with the direction of
the mark on top of the relay case
matching the direction of the mark
on the terminal block.
（
The direction
of the terminal block is the upward
direction of the relay.）
30±0.22ｰφ4.5±0.11. Mounting
Insert the A part of the fastening bracket
into the mounting groove of the terminal
block, and then t the B part into groove,
while pressing with the tip of a minus
screwdriver.
2. 2. Removal
Slide the B part of the fastening bracket
from the groove in the terminal block,
while pressing with the tip of a minus
screwdriver. While the bracket is in this
position, keep pressing the C part of the
bracket to the relay side with your nger,
and lift up to the left side and remove
from the groove, as in the diagram at　
right.
minus
screwdriver
Fastening
bracket
B
A
Terminal block
SP relay
C
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TYPES
DIMENSIONS (mm)
ACCESSORIES
SP RELAYS
MOUNTING BOARD
Direct chassis mounting possible, and applicable to DIN rail.
18.4
2523.2
56.2
General tolerance
±
0.5
Mounting hole diagram
18.4±0.1 2ｰ3.2dia.
Tolerance:±0.1 ±.004
Use method Method for mounting on DIN rail
1. Both the SP relay 2 Form C and
4 Form C can be mounted to the
mounting slats.
2. Use the mounting slats either by
attaching them directly to the chassis, or
by mounting with a DIN rail.
1) When attaching directly to chassis
2) When mounting on a DIN rail
indicated in the diagram at right.
• Use two M3 screws.
• For the mounting pitch, refer to the
specication diagram.
(1) First t the arc shaped claw of the
mounting slat into the DIN rail.
(2) Press on the side as shown in the
diagram below.
(3) Fit in the claw part on the opposite
side.
• Use a 35mm 1.378inch wide DIN rail
(DIN46277).
• The mounting method should be as
Press
Fit in Mounting
slat
DIN rail
Fit into mounting grooves.
To remove the
relay, press down
the mounting slats
so the claws move
to the outside.
A direction
Fig. 1
Fig. 2
Fig. 3
Press relay in Precautions for use
When mounting to a DIN rail, use a
commercially available fastening bracket
if there is a need to stop sliding of the
mounting slat in the rail direction.
Product name Part No.
Mounting board SP-MA
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Humidity, %R.H.
Allowable range
85
5
0 85–40
(Avoid
condensation
when used at
temperatures
higher than
0°C
(Avoid icing
when used at
temperatures
lower than 0°C)
Ambient temperature, °C
)
GUIDELINES FOR POWER RELAYS AND HIGH-CAPACITY DC CUT OFF RELAYS USAGE
Long term current carrying
A circuit that will be carrying a current continuously for long periods
without relay switching operation. (circuits for emergency lamps, alarm
devices and error inspection that, for example, revert only during
malfunction and output warnings with form B contacts) Continuous,
long-term current to the coil will facilitate deterioration of coil insulation
and characteristics due to heating of the coil itself.
For circuits such as these, please use a magnetic-hold type latching
relay. If you need to use a single stable relay, use a sealed type relay
that is not easily a󰀨ected by ambient conditions and make a failsafe
circuit design that considers the possibility of contact failure or
disconnection.
DC Coil operating power
Steady state DC current should be applied to the coil. The wave form
should be rectangular. If it includes ripple, the ripple factor should be
less than 5%.
However, please check with the actual circuit since the electrical
characteristics may vary. The rated coil voltage should be applied to
the coil and the set/reset pulse time of latching type relay di󰀨ers for
each relays, please refer to the relay's individual specications.
Coil connection
When connecting coils of polarized relays, please check coil polarity
(+,-) at the internal connection diagram (Schematic). If any wrong
connection is made, it may cause unexpected malfunction, like
abnormal heat, re and so on, and circuit do not work. Avoid
impressing voltages to the set coil and reset coil at the same time.
Usage, Transport, and Storage Conditions
During usage, storage, or transportation, avoid locations
subjected to direct sunlight and maintain normal temperature,
humidity and pressure conditions.
Temperature/Humidity/Pressure
When transporting or storing relays while they are tube
packaged, there are cases the temperature may di󰀨er from the
allowable range. In this case be sure to check the individual
specications. Also allowable humidity level is inuenced by
temperature, please check charts shown below and use relays
within mentioned conditions. (Allowable temperature values
di󰀨er for each relays, please refer to the relay's individual
specications.)
Maximum allowable voltage and temperature rise
Proper usage requires that the rated coil voltage be impressed on the
coil. Note, however, that if a voltage greater than or equal to the
maximum continuous voltage is impressed on the coil, the coil may
burn or its layers short due to the temperature rise. Furthermore, do
not exceed the usable ambient temperature range listed in the catalog.
Operate voltage change due to coil temperature rise
(Hot start)
In DC relays, after continuous passage of current in the coil, if the
current is turned OFF, then immediately turned ON again, due to the
temperature rise in the coil, the pick-up voltage will become somewhat
higher. Also, it will be the same as using it in a higher temperature
atmosphere. The resistance/temperature relationship for copper wire
is about 0.4% for 1°C, and with this ratio the coil resistance increases.
That is, in order to operate of the relay, it is necessary that the voltage
be higher than the pick-up voltage and the pick-up voltage rises in
accordance with the increase in the resistance value. However, for
some polarized relays, this rate of change is considerably smaller.
Precautions for Coil Input
Ambient Environment
For cautions for use, please read “GUIDELINES FOR RELAY USAGE”.
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
1) Temperature:
The tolerance temperature range differs for each relays,
please refer to the relay’s individual specifications
2) Humidity:
5 to 85 % RH
3) Pressure:
86 to 106 kPa
Dew condensation
Condensation occurs when the ambient temperature drops
suddenly from a high temperature and humidity, or the relay is
suddenly transferred from a low ambient temperature to a high
temperature and humidity. Condensation causes the failures like
insulation deterioration, wire disconnection and rust etc.
Panasonic Corporation does not guarantee the failures caused
by condensation.
The heat conduction by the equipment may accelerate the
cooling of device itself, and the condensation may occur.
Please conduct product evaluations in the worst condition of
the actual usage. (Special attention should be paid when high
temperature heating parts are close to the device. Also please
consider the condensation may occur inside of the device.)
Icing
Condensation or other moisture may freeze on relays when the
temperature become lower than 0°C.This icing causes the sticking of
movable portion, the operation delay and the contact conduction failure
etc. Panasonic Corporation does not guarantee the failures caused by
the icing.
The heat conduction by the equipment may accelerate the cooling of
relay itself and the icing may occur. Please conduct product
evaluations in the worst condition of the actual usage.
Low temperature and low humidity
The plastic becomes brittle if the switch is exposed to a low
temperature, low humidity environment for long periods of time.
High temperature and high humidity
Storage for extended periods of time (including transportation periods)
at high temperature or high humidity levels or in atmospheres with
organic gases or sulde gases may cause a sulde lm or oxide lm to
form on the surfaces of the contacts and/or it may interfere with the
functions. Check out the atmosphere in which the units are to be
stored and transported.
ASCTB412E 201903
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GUIDELINES FOR POWER RELAYS AND HIGH-CAPACITY DC CUT OFF RELAYS USAGE
Package
In terms of the packing format used, make every e󰀨ort to keep the
e󰀨ects of moisture, organic gases and sulde gases to the absolute
minimum.
Silicon
When a source of silicone substances (silicone rubber, silicone oil,
silicone coating materials and silicone lling materials etc.) is used
around the relay, the silicone gas (low molecular siloxane etc.) may be
produced.
This silicone gas may penetrate into the inside of the relay. When the
relay is kept and used in this condition, silicone compound may adhere
to the relay contacts which may cause the contact failure. Do not use
any sources of silicone gas around the relay (Including plastic seal
types).
Others
Cleaning
1) Although the environmentally sealed type relay (plastic sealed type,
etc.) can be cleaned, avoid immersing the relay into cold liquid (such
as cleaning solvent) immediately after soldering. Doing so may
deteriorate the sealing performance.
2) Cleaning with the boiling method is recommended(The temperature
of cleaning liquid should be 40°C or lower ).
Avoid ultrasonic cleaning on relays. Use of ultrasonic cleaning may
cause breaks in the coil or slight sticking of the contacts due to
ultrasonic energy.
Please refer to "the latest product specications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
NOx Generation
When relay is used in an atmosphere high in humidity to switch a load
which easily produces an arc, the NOx created by the arc and the
water absorbed from outside the relay combine to produce nitric acid.
This corrodes the internal metal parts and adversely a󰀨ects operation.
Avoid use at an ambient humidity of 85%RH or higher (at 20°C). If use
at high humidity is unavoidable, please contact our sales
representative.
ASCTB412E 201903
2019
ASCTB208E-1 201903