HIMA H4137 Safety Switching Relay Module

Technical Specifications

Model:H4137

Brand:HIMA

Safety certification:SIL3,IEC61508

Power supply:24V DC (-15%~+20%),≤40mA

Contact:Floating NO contact

Max switching voltage:250V

Max switching current:4A

Switching time:approx.8ms,Reset time:approx.6ms

Mounting:DIN rail installation

Protection class:IP20

Operating temperature:-25~+60℃

Relative humidity:5~95% non-condensing

Weight:0.12kg

Certification:CE

System compatibility

Designed for HIMA HIMatrix PES safety system,driven by safety I/O module outputs,widely used in petrochemical,chemical plant ESD emergency shutdown and F&G fire gas protection system.

Function

SIL3 safety switching relay module.It receives safety control signal from HIMatrix safety controller and switches safety-related field load circuits.It adopts floating normally open contact design with short-circuit protection,realizes safe load switching for safety instrumented system.

Installation

Clip onto standard DIN rail inside control cabinet or terminal box,wire coil input and field contact circuits.

Interface

‑24V DC coil power terminals

‑Floating NO contact wiring terminals

‑LED indicators for relay operating and fault status

Circuit feature

SIL3 fail-safe relay design,isolated contact circuit,short-circuit protection,strong anti-electromagnetic interference,meets SIL3 functional safety requirements for hazardous industrial environment.

Feature

HIMatrix series SIL3 safety switching relay H4137. Common faults:contact aging,coil burnout,terminal corrosion.Check wiring integrity before commissioning.

Diagnostic

Coil failure or contact damage leads to abnormal LED status;controller executes safety interlock logic.

Built‑in function

H4137 is used for switching safety load circuits in SIS safety instrumented system emergency shutdown protection,widely used for process plant safety spare replacement.

Product Brief

H4137 belongs to HIMA HIMatrix family,DIN rail mounted SIL3 safety switching relay module with floating NO contact. Verify system compatibility before ordering.Test contact switching performance during commissioning. ESD anti‑static protection shall be followed during installation.