H4137 HIMA Safety Switch Relay Module

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Description of H4137

HIMA H4137 is an industrial-grade safety switch relay module manufactured by the German company HIMA (Black Horse), a security automation expert. It is widely used in safety-related automation systems in high-risk industries such as oil, gas, and chemical industries (such as the H51q system), providing critical electrical isolation and signal switching.

Parameter

Rated operating voltage: 24 V DC
Maximum switching voltage/current: 250 V AC / 4 A
Explosion-proof certification: Equipped with Ex explosion-proof protection certification, designed for working environments with potential explosive hazards

FAQ

What are the core functions of HIMA H4137?
A: It is mainly used for electrical isolation and signal switching in safety circuits. It can amplify or switch the low-voltage control signals from the safety controller to the high-load actuators at the site safely and without any contact interference.
Which safety certification standards does this module comply with?
A: H4137 has undergone rigorous testing and meets the IEC 61508 / SIL 3 safety integrity level certification. Additionally, it also complies with the safety standards for industrial boilers and combustion management systems (BMS) such as EN 298, DIN VDE 0116, EN 50156, and NFPA.
What are the specific input and output parameters of this module?
A: Input: Rated voltage 24 V DC (allowable fluctuation -15% to +20%), working current \(\le \) 40 mA. Output: Floating normally open contact (Floating NO contact), with a maximum switching capacity of 250 V AC / 4 A.
What is the response time of this module?
A: The action switching time is approximately 8 ms, and the reset release time is approximately 6 ms. This ensures a rapid power-off response for the safety system (De-Energize to Trip).