This is SSR-25DA Single-phase Soild State Relay. It can be driver by Arduino directly without any expanding circuit because of its built-in opto-couple. The plastic protective cover makes it be a safer relay module.
SSR solid state relay uses inflaming retarding engineering plastic shell, epoxy resin encapsulation and screw terminal connection. This series solid state relay has high structural strength, impact resistance and strong resistance to vibratility. The low input drive current makes it convenient to connect with computer terminal and various digital programmable interface circuit.
It is widely used in automation control field such as petrochemical equipment, food machinery, packaging machinery, textile machinery, CNC machine, plastic machinery, fitness equipment, recreational facilities, especially suitable for severe environments like corrosion, moisture, dust prevention, explosive requirements and frequent switch occasions. SSR series solid state relay are update replacement products of a.c. contactor.
Reliable SMT technology
High ultra insulation resistance over 50MΩ/500V DC
High dielectric over 2.5KV
Low enable current less than 7.5mA/12V DC, compatible with CMOS IC or TTL
Low EMI/EFI & surge by zero cross trigger method
High surge voltage duration by snubber circuit
Model: SSR-25 DA
Load Voltage: 24-380VAC
Load Current: 25A
Control Voltage: 3-32VDC
Control Current: DC3-25mA
Working voltage: 250V
On voltage: ≤1V
One-off Time: ≤10ms
Off leakage Current: ≤2mA
Installation Method: Bolt Fixed
Working Indication: LED