Square D Harmony SSM1 Series Solid State Relay
The Square D SSM1A112BDR is a DIN-rail mountable solid state relay from the Harmony SSM1 Series, engineered for reliable switching in industrial control applications. With a 12A rating and a 4 to 32V DC control input, this relay provides precise, contact-free switching for demanding automation environments.
Key Specifications
- Series: Harmony SSM1
- Current Rating: 12A
- Input Voltage: 4 to 32V DC
- Contact Configuration: 1NO (Normally Open)
- Mount Type: DIN-Rail
- Dimensions: 90.3 H x 18 W x 83.7 D mm
- Model: SSM1A112BDR
- UPC: 78590197086
Standards & Compliance
- IEC 60950-1
- IEC 61000
- IEC 62314
Features
- DIN-rail mounting for easy panel installation
- Solid state design for long service life and vibration resistance
- Wide DC input range: 4 to 32V DC
- Compact 18 mm width minimizes panel space requirements
Applications
- Industrial machine control panels
- Process automation and PLC output switching
- Motor control and heating element switching
- Panel-build applications requiring IEC-compliant relays









