Technical Specifications 4 relay output channels; force-guided contact design; 24V DC coil; 5A contact rating at 250V AC; SIL 2 compliant per IEC 61508; operating temperature: -40°C to +70°C; channel-to-channel isolation; system backplane interface.
Functional Features Fault-tolerant relay architecture; force-guided contacts for fault detection; alarm and trip output capability; per-channel status indication; coil monitoring.
Application Scenarios Turbine and compressor protection systems, critical machinery emergency shutdown, process safety interlock systems, rotating equipment alarm output.
Performance Parameters High contact reliability; predictable failure mode; fast trip response; high diagnostic coverage.
Material Composition Flame-retardant plastic housing, force-guided electromechanical relays, copper alloy terminals, gold-plated backplane connector.
Structural Characteristics Rack plug-in module, front channel status LEDs, rear system backplane connector, screw terminal output connections.
Working Principle Receives validated alarm and trip commands from the protection controller, drives force-guided output relays to switch external safety circuits. The force-guided contact design enables detection of welded contact faults.
Installation Requirements Install in safety system rack slot; connect safety output circuits per wiring diagram; implement proper circuit protection for loads.
Usage Notes Follow functional safety management procedures for modifications; perform periodic contact integrity tests; do not bypass fault detection functions.
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