This is one of the SSD (Solid State Relay) types.
Part Number: SSR-40DA
Function : DC to AC Solid State Relay
Package: Module type
Manufacturer: http://www.fotek.com.hk/
Image:
Description
The SSR-40DA is 40A, DC to AC Solid State Relay.
A relay is an electrically operated switch that opens or closes a circuit by activating an electromagnet to actuate the switch. It allows a low-power electrical signal, such as from a microcontroller or sensor, to control a much larger current or voltage, such as required to drive a motor or light bulb.
This allows a small electronic device to control a much larger one, or to isolate the low-power circuit from the high-power one. Relays are used in a wide range of applications, including automotive systems, HVAC systems, and computer power supplies, among other
Specification
Features
1. High Reliability by S.M.T & TGC. ( Surface Mounting Technology )
2. High Isolation over than 50mOhm / 500 VDC
3. High Dielectric over than 2.5KV
4. Low Enable Current less than 7.5mA / 12VDC CMOS IC or TTL Compatible.
5. Low EMI / EFI & Surge by Zero Cross Trigger Method.
6. High Surge Current Duration Over 10 Times of Rated Current / One Cycle
7. High Surge Voltage Duratin By Snubber Circuit
Diagram :
Other data sheets are available within the file: SSR-25DA, SSR-25DA-H, SSR-40DA-H, SSR-P03DA