HIMA H4135A 992413560

HIMA H4135A 992413560

Product Introduction H4135A is SIL3 certified safety relay module with part number 992413560 manufactured by HIMA. It is designed for safety instrumented systems, emergency shutdown and machine safety interlock applications. The module accepts 24 V DC safety input signals and drives force-guided safety relay contacts. It implements redundant safety circuit architecture and continuous diagnostic functions to detect contact welding and wiring faults. It cuts off safety output within defined response time when safety trip condition activates.

Request Quote
Category:

Description

HIMA H4135A 992413560

Technical Specifications

  • Product Type: SIL3 safety relay module
  • Power Supply: 24 V DC
  • Input Signal: 24 V DC safety enable signal
  • Output Contact Rating: 10 A @ 250 V AC
  • Safety Certification: IEC 61508 SIL3, EN ISO 13849 PL e Category 4
  • Response Time: Less than 20 ms
  • Diagnostic Functions: Contact welding detection, wire break detection, short circuit detection
  • Protection Rating: IP20
  • Operating Temperature: -20 °C to +60 °C
  • Relative Humidity: 5 % to 95 %, non-condensing
  • Mounting: Standard 35 mm DIN rail mounting
  • Net Weight: 0.25 kg

Functional Features

  1. SIL3 / PL e high safety integrity level for process and machinery safety interlock loops.
  2. Force-guided safety relay contacts ensure positive contact separation under fault conditions.
  3. Redundant internal safety circuit architecture for fault tolerant operation.
  4. Built-in diagnostic detects contact welding, wire break and short circuit on input and output loops.
  5. Fast response time ensures rapid safe shutdown upon safety trip trigger.
  6. LED indicators show power status, safety channel state and fault alarm.
  7. Reverse polarity and overvoltage protection safeguards internal circuit from power wiring error.
  8. Compact DIN rail housing saves cabinet installation space.
  9. Manual reset function locks safety trip state until fault clearance and operator reset.
  10. Continuous self-test verifies internal relay and diagnostic circuit integrity during operation.

Application Scenarios

  • Petrochemical plant ESD emergency shutdown safety interlock
  • Boiler burner management safety fuel valve control
  • Machine tool safety gate and emergency stop safety circuit
  • Offshore platform fire and gas safety system relay output
  • Power plant turbine protection safety contactor control

Material Composition

  • Housing: Flame-retardant green polycarbonate plastic enclosure
  • Main PCB: FR4 printed circuit board with conformal coating
  • Safety components: Force-guided safety electromagnetic relays
  • Protection components: Surge suppression diodes and current limiting resistors
  • Terminal blocks: Tin-plated copper alloy screw terminals
  • Isolation components: Optocoupler isolation chips for input channels

Structural Characteristics

  • Slim single width DIN rail plastic enclosure.
  • Front panel LED indicators for power, safety status and fault.
  • Rear screw terminal blocks for safety input, power supply and safety output wiring.
  • Internal dual redundant safety circuit architecture for SIL3 compliance.
  • Force-guided relay mechanical linkage prevents independent contact movement in case of contact welding.
  • Passive convection cooling without fan components.

Working Principle 24 V DC safety enable signal enters H4135A safety input terminals. When safety conditions are satisfied, internal redundant safety relays energise and close force-guided output contacts to supply power to downstream safety contactor. If safety input signal is removed or diagnostic circuit detects contact welding or wiring fault, safety relays de-energise immediately, force-guided contacts open and cut power to safety load. Trip state latches and requires manual reset after fault elimination. LED indicators display fault type for maintenance.

Installation Requirements

  • Mount H4135A on 35 mm DIN rail inside protected control cabinet.
  • Use shielded twisted pair cable for safety input wiring.
  • Separate safety circuit wiring from high power motor and power cables.
  • Complete protective earth connection to cabinet ground bar.
  • Use force-guided safety contactor in downstream safety circuit.
  • Perform safety function test and fault simulation test after wiring completion.
  • Verify contact wiring polarity and continuity.

Usage Notes

  • Do not bypass safety input circuit for test operation.
  • Use only contact loads within rated contact specification.
  • Keep cabinet dry and free of conductive dust and corrosive gas.
  • Execute periodic SIL proof test according to safety system maintenance schedule.
  • Disconnect power before modifying safety wiring.
  • Use anti-static wristband when handling spare module.
  • Replace module immediately when permanent safety relay or diagnostic fault occurs.

Related products