Solid State Relay, 3 phase, load current 120A, DC control, zero-cross switch, built-in RC, optical isolation between input and out circuit, with LED indicator, no electric spark, no noise and no contact, high switching speed, high structural strength, impact resistance, anti-vibration.
|On-state voltage drop
|Off-state leakage current
||2500V AC (1min)
||500МΩ with 500V DC
||Fan needed for cooling
Tips: How to choose the current of SSRs?
Taking into account fluctuations in grid voltage and large instantaneous current when load starts, the current of SSRs is generally several times larger than its rated current, and thyristor chip’s resistance to current impact is poor, it is recommended in the selection of the current of SSRs, appropriate margin should be left.
- Resistive load
SSRs’ nominal current should be twice as large as the rated load current.
- Inductive load
The nominal current should be 2.5 times as large as the rated current of the load for light load; 3 times for middle-sized load; and 4 ~ 4.5 times for heavy load.