FOTEK SSR Solid State Relay 3-32V up to DC 75A/250V Output 24-380VAC

Price without tax:

3.23 3.85 

Add selected () for 0 
Add selected () for 0 
Add selected to cart
Filters Sort results
Reset Apply
Min: 0
Step: 1
Min: 0
Step: 1
Related Products



Type Standard type
Model SSR – 10DA SSR – 25DA SSR – 40DA SSR – 50DA SSR- 75DA
Rated current 10A max. 25A max. 40A max 50A max. 75A max
I2t for fuse 144A2S 259A2S 664A2S 518A2S 1328A2S
Surge current 135A 275A 410A 550A 820A
Peak voltage 1200VAC min.
Output voltage 24 〜380VAC
General specification
Input voltage 4-32 VDC
Turn off voltage <3.5 vdc=”” –3=”” 5–=””>
Trigger current 12.0mA max.
Control method Zero cross
Leakage current 5 mA max.
Response time 8.3 ms (60Hz)
Input immunity 2KV (EN61000-4-4)
Isolation strength 4 KV rms (EN60950AZDE0805)
Insulation strength 100MΩ / 500 VDC (EN60950/VDE0805)
Housing material ABS (UL: 94VO)
Circumstance -40°C – +80°C /  35 – 85%RH

» SSR-xxDA is a solid state relay DC-AC one-phase Relay

Solid state relay ( SSR ), belongs to electronic contactless switch.The main characteristics are:small control signal input, directly driving high current load. It is widely used,for example, used together with temperature control instrument, can quickly control the electric heaters.

» Advantages:

long service life,contactless,no spark,no noise,no electromagnetic interference,fast switching speed,strong anti-interference capability,reliable work, and has the advantages of small volume, vibration resistance, explosion prevention, corrosion prevention, compatible with such integrated circuit as TTL, DTL, HTL and so on. .

» Insufficiency:

Output contact is not so much as contactor,only one group; in addition,due to pressure, temperature rises quickly if the load is above 5A.So you must pay attention to heat dissipation.You can also use special solid state heat sink.

» Attention of first use:

This product can only control the resistive electrical appliances, like a series of electrical heating appliances as electric wire, electric heating pipe,and there must leave 3/2 margin of the selection current size,pay attention to heat dissipation when current is above 5A!



fotek ssr 40 2a

  SSR Wiring Example

fotek wiring



Ask a question


FOTEK SSR Solid State Relay 3-32V up to DC 75A/250V Output 24-380VAC