Your present location:Home >> products >> Panel Mount SSRs >> KS34 Single-phase SSR AC output
  • Product name: KS34 Single-phase SSR AC output
  • Product number: KS34 Single-phase SSR AC output
  • Control Voltage: 90~280VAC 3~32VDC 4~32VDC
  • Load Voltage: 240VAC 380VAC 480VAC 600VAC
  • Load current: 25A 40A 50A 60A 70A 80A
  • Installation: Panel Mounting

● Photoelectric isolation

● Removable protective cover avaliable

● Dielectric strength 4000V

● Zero or random turn-on

● Panel mount

● DC or AC control

● SCR output

KS34 is a high power solid state relay, offer (3~32)VDC or (90~280)VAC input voltage control, with output current range from 25A to 80A and load voltage range from 48VAC to 600VAC. SCR output provides high dv/dt capability more than 500v/us. The relays provide 4000VAC opto-isolation between input and output. Encapsulating with epoxy resin. Outline dimension is 58.6mmX45.7mmX26.5mm.

Input Parameter (Ta = 25℃)

Control voltage range(DC input) (3 ~ 32)VDC (Without LED)
(4 ~ 32)VDC (With LED)
Control voltage range(AC input) (90 ~ 280)VAC
Must turn-on voltage(DC input) 3 VDC (Without LED)
4 VDC (With LED)
Must turn-on voltage(AC input) 90VAC
Must turn-off voltage(DC input) 1VDC
Must turn-off voltage(AC input) 10VAC
Max.input current(DC input) 25mA
Max.input current(AC input) 10mA
Max.reverse protection
voltage(DC input type)
- 32VDC


Output Parameter (Ta = 25℃)




D -38



Load voltage range (48 ~ 280)VAC (48 ~ 440)VAC (48 ~530)VAC (48 ~660)VAC
Max.transient voltage 600Vpk 800Vpk 1200Vpk 1600Vpk
Load current range 25A 40A 50A 60A 70A 80A
Max.surge current (10ms) 300Apk 400Apk 500Apk 600Apk 700Apk 800Apk
Max.I2 t for fusing(10ms, A2 s) 312 800 1250 1800 2450 3200 leakage current 10mA
Max.on-state voltage drop 1.7Vr.m.s.
Min.power factor 0.5
Max.turn-on time Random(DC input) 1ms
Zero cross(DC input) 1/2cycle+1ms
AC input type 20ms
Max.turn-off time DC input type 1/2cycle+1ms
AC input type 40ms
Frequency range (47 ~ 63)Hz dv/dt 500V/μs


GENERAL(Ta = 25℃)

Dielectric strength (50Hz/60Hz) input,output to base 2500VAC, 1min
input to output 4000VAC, 1min
Insulation resistance 1000MΩ(500VDC)
Max.capacitance(input to output) 8pF
Operating Temperature -30 ~ 80
Storage Temperature -30 ~ 100
Ambient humidity 45% ~ 85% RH
Unit weight 25A type approx 80g
40A~80A type approx 95g

1.When choosing a SSR,please pay more attention to actual load current and ambient temperature. When the SSR is used for full load operation, we'd better install an adequate heatsink or take other effective cooling measures. When the ambient temperature is high, the load current must be reduced. Please refer to the curve of Max. Load Current vs Ambient Temperature.
2.Apply heat-conducting silicon grease or a thermal transfer pad on the space between SSR and heat sink. Then, screw the heatsink firmly. In that case, it would keep the SSR from damaging by overheat.
3.Tighten the SSR terminal screws properly. If the screws are loose, the SSR will be damaged by heat generated from connections. Also, excessive screw mounting torque may damage relay internal components. We recommended screw installation torque as follows : M4 screw mounting torque range is (0.98~1.37)N.m, M3 screw mounting torque range is (0.58~0.98)N.m.
4.It's recommended to use the matched heatsink by Jinxinrong. If the user needs to use home-made heatsink, it's needed to ensure that the SSR base temperature does not exceed 85.
5.KS34 relay use for inductive load, it is suggested to select random turn-on(i.e., a model with "P" letter) products; KS34 relay use for capacitive load, do not choose products with varistor protection(i.e., a modelwith "Y" letter) .
6.Listed parameters are based on resistive load. Please do not use the relay beyond the descriptions in the datasheet.

Download attachments : KS34

Your present location:home >> products >> Panel Mount SSRs >> KS34 Single-phase SSR AC output


Ad:No.130,Guankouzhong Road,

Jimei Dist,361023 Xiamen Fujian,China

Hotline:0592-7268263 6387007-8069

Copyright page:Xiamen Jinxinrong Electronics Co., Ltd