This SPST-NO,double in-line printed circuit board mount SSR provides AC output switching in a high density package. The relay's DC input is compatible with 5VDC,12VDC and 24VDC logic systems. The relays include a LED indicator to provide input status information. Rated load curent is 2A,3A, rated load voltage is 220VAC,380VAC.
KS40A enables weak against strong electrical isolation and control, and level conversion. Can easily connect with computer and a variety of digital circuit interface.
Input Parameter (Ta = 25℃)
Control voltage range |
5 |
(4 ~ 6)VDC |
12 |
(9.6 ~ 14.4)VDC |
24 |
(19.2 ~ 28.8)VDC |
Must turn-on voltage |
5 |
4VDC |
12 |
9.6VDC |
24 |
19.2VDC |
Must turn-off voltage |
1.0VDC |
Max.reverse protection voltage |
5 |
-6VDC |
12 |
-14.4VDC |
24 |
-28.8VDC |
Max.input current |
20mA |
Output Parameter (Ta = 25℃)
Load voltage range |
KS40/口-24口口-口 |
(48 ~ 280)VAC |
KS40/口-38口口-口 |
(48 ~ 440)VAC |
Load current range |
KS40/口-口口2-口 |
(0.1 ~ 2)A |
KS40/口-口口3-口 |
(0.1 ~ 3)A |
Max.surge current (10ms) |
KS40/口-口口2-口 |
25Apk |
KS40/口-口口3-口 |
120Apk |
Max.I2 t for fusing (10ms) |
KS40/口-口口2-口 |
3.1A2s |
KS40/口-口口3-口 |
78A2s |
Max.off-state leakage current |
5mA |
Max.on-state voltage drop |
1.5Vr.m.s. |
Max.turn-on time |
Zero cross |
1/2cycle+1ms |
Random |
1ms |
Max.turn-off time |
1/2cycle+1ms |
Max.transient voltage |
KS40/口-24口口-L |
600Vpk |
KS40/口-38口口-L |
800Vpk |
Min.off-state dv/dt |
100V/μs |
Min.power factor |
0.5 |
GENERAL (Ta = 25℃)
Dielectric strength(input to output) |
2500VAC, 50Hz/60Hz, 1min |
Insulation resistance |
1000MΩ(500VDC) |
Max.capacitance(input to output) |
8pF |
Vibration resistance |
10Hz-55Hz 1.5mm DA |
Shock resistance |
980m/s2 |
Operating temperature |
-30℃ ~ 80℃ |
Storage temperature |
-30℃ ~ 100℃ |
Ambient humidity |
45% ~ 85% RH |
Unit weight |
Approx 18g |
1.Soldering must be completed within 10s at 260℃ or less or within 5s at 350℃ or less.
2.If poor ventilation is unavoidable,the load current must be reduced.
3.Make sure that the polarity is correct when connecting, to avoid damage to the relay.
4.Please do not use the relay beyond the descriptions in the data sheet.
5.If the output transient voltage exceeds the norminal value, a varistor should be connected to the SSR output terminal in parallel to prevent the relay being breakdown. The recommended varistor voltage as follows:
Rated output voltage
|
Varistor voltage
|
220VAC
|
470V
|
380VAC
|
750V
|

It is widely used in industrial automation field: DC motor, DC power supply, a variety of electromagnetic devices and intelligent instruments and so on, Suitable for harsh occasions of corrosive moisture and explosion proof.