Industrial Class SSR solid state relay

  • Categories:Solid State Relay
  • MOQ:1
  • Brand:Trihero
  • FOB Port:Shanghai port, Ningbo port
  • Terms of Payment:Western Union, T/T, Paypal
  • Delivery Time:7 Working Days

Industrial Class SSR solid state relay 


● Dielectric strength 4000V

● Photo isolation

● Zero cross or random turn-on

● Control voltage 3-32V DC, 70-280V AC

● Low power consumption

● Panel mount

● LED indication

● Built-in RC

Models explanation:

Industrial Class SSR 2

1.SY – design code

SYDH – single-phase solid state relay (10 – 120А)

SYDM – industrial class solid state relay (100 – 500А)

SYTH – three-phase solid state relay (10 – 120А)

SYTR – motor reversing solid state relay (10 – 40А)

2. 40 – load current 40А (10 – 500А)

3. 48 – load voltage 24-480V AC, 38 – 24-380V AC, 23 – 5-220V DC

4. ZD3 – control signal type(swithing mode)

VA – variable resistor 220-560кОм/2Вт (phase control)

LA – analog signal 4-20мА (phase control)

VD – analog signal 0-10V DC (phase control)

ZD – control voltage 10-30V DC (switching at zero crossing)

ZD3 – control voltage 3-32V DC (switching at zero crossing)

ZA2 – control voltagte 70-280V AC (switching at zero crossing)

DD3 – control voltage 3-32V DC (DC voltage switching)


Load voltage Control voltage Rated current
100A 120A 150A 200A
480V AC 3-32V DC SYDM10048ZD3 SYDM12048ZD3 SYDM15048ZD3 SYDM20048ZD3
80-280V AC SYDM10048ZA2 SYDM12048ZA2 SYDM15048ZA2 SYDM20048ZA2
Load voltage Control voltage Rated current
250A 290A 400A 500A
480V AC 3-32V DC SYDM25048ZD3 SYDM29048ZD3 SYDM40048ZD3 SYDM50048ZD3
80-280V AC SYDM25048ZA2 SYDM29048ZA2 SYDM40048ZA2 SYDM50048ZA2

Technical specifications:

Items SYDMxxxxxZD3 SYDMxxxxxZA2
Load voltage 24-480V AC
Control voltage 3-32V DC 80-280V AC
Current consumption in control circuit 3-25mA ≤12mA
Voltage ON/OFF 3V DC/1.5V DC 80V AC/50V AC
Peak voltage 800V AC
Voltage drop in load circuit ≤1.5V AC
Leakage current(off-state) ≤10mА
Switching time ≤10мs
LED indication yes
Dielectric strength 2500V AC (1min)
Insulation resistance 500МОм with 500V DC
Operating temperature -20…+75°C
Relative humidity ≤95%; (non-condensing)
Dimensions 94х25х38mm (100А, 120А)
94х34х38mm (150-290А)
115х53х53mm (400А, 500А)
Mounting method Screws on
Weight 100А, 120А - 130g
150-290А - 215g
400А, 500А - 910g

Outline dimensions & Wiring diagram:

Industrial Class SSR 3

Industrial Class SSR 4

Industrial Class SSR 5

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