Schneider Electric SSM3 Harmony Solid-State Relays
Schneider Electric SSM3 Harmony Solid-State Relays (SSRs) offer three-phase switching in a modular DIN-rail package with a fully electronic, maintenance-free design. These robust relays include three channels, a line current rating of 25A, and an output range of 48VAC to 600VAC. The lineup features zero-voltage or random-voltage switching to address different load requirements. Additional features include an integrated heat sink, screw-terminal connections, and reliable, quiet operation without moving contacts. Schneider Electric SSM3 Harmony SSRs are designed to perform in severe environments, making them ideal for industrial applications.
Features
- Three-channel, three-phase configuration
- Zero-voltage switching (SSM3A325BD, SSM3A325F7, and SSM3A325P7)
- Random-voltage switching (SSM3A325BDR)
- AC or DC control options
- Resistance to shock and vibration
- Integrated heat sink for heat dissipation
- Green LED input-status indication
- Symmetrical DIN-rail mounting
- Fully electronic, maintenance-free design
- Silent switching without moving contacts
- Robust in severe environments
- Screw-terminal connections
Applications
- Packaging
- Plastic molding
- Textiles
- Heating furnaces
Specifications
- 25A line current rating
- 48VAC to 600VAC output range
- 0.1A to 25A load current range
- Input current ranges
- 22mA to 28mA
- 19mA to 24mA
- 15mA to 19mA
- <1.35V maximum on-state voltage drop
- 0.25mA maximum off-state leakage current
- 1100V transient overvoltage rating
- 500V/µs off-state dV/dt at maximum voltage
- 4kVAC dielectric strength between input and output and from input or output to case
- 1000MΩ insulation resistance
- 90mm width
- -20°C to +80°C operating temperature range
- IP20 degree of protection
- Pollution degree 2
- IEC 60950-1, UL 508, and CSA C22.2 No. 14 standards
- CSA, UL, and EAC certifications
- CE marking
Call-Outs
Additional Resources
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