Schneider Electric SSM2 Harmony Solid-State Relays

Schneider Electric SSM2 Harmony Solid-State Relays (SSRs) feature a dual-channel, single-phase relay configuration with a 6A rating in a compact modular DIN-rail housing. These devices handle two AC load channels and integrate a heat sink, screw terminals, and green LED input-status indicators. The solid-state construction enables silent operation without moving contacts. Schneider Electric SSM2 Harmony Solid-State Relays are available in two options. The SSM2A16BD uses zero-voltage switching for resistive loads, while the SSM2A16BDR provides random-voltage switching for inductive loads. Both types offer robust performance in harsh environments and resist shock and vibration.

Features

  • Dual-channel, single-phase relay configuration
  • Designed for industrial applications
  • Compact design with slim width requires less panel space and reduces enclosure size
  • Fast and precision control, high switching frequency
  • Zero-voltage switching for resistive loads (SSM2A16BD)
  • Random-voltage switching for inductive loads (SSM2A16BDR)
  • Resistance to shock and vibration
  • SCR solid-state outputs
  • Integrated heat sink for heat dissipation
  • Green LED indication for input status
  • Symmetrical DIN-rail mounting
  • Silent switching without moving contacts
  • Robust in harsh environments
  • Screw-terminal connections

Applications

  • Packaging
  • Plastic molding
  • Textiles
  • Heating furnaces

Specifications

  • 6A rated current per listed device
  • 4VDC to 32VDC control input
  • 24VAC to 280VAC load-voltage range
  • 0.15A to 6A load current range
  • 14mA to 16.87mA input current
  • 4VDC turn-on voltage
  • 1VDC turn-off voltage
  • <1.3V on-state maximum voltage drop
  • 0.1mA off-state maximum leakage current
  • 600V transient overvoltage rating
  • 500V/µs off-state dV/dt at maximum voltage
  • 2.5kVAC dielectric strength between input and output and from input or output to case
  • 18mm x 90.3mm x 84.4mm dimensions (W x H x D)
  • -30°C to +80°C operating temperature range
  • IP20 degree of protection
  • UL 94V-0 flame-retardant rating
  • IEC 60950-1, IEC 61000, and IEC 62314 standards
  • CSA and UL certifications
  • CE marking

Call-Outs

Infographic - Schneider Electric SSM2 Harmony Solid-State Relays
Published: 2026-10-21 | Updated: 2026-10-23