HIMA H4135A HIMatrix Safety Systems

The HIMA H4135A, also cataloged as the H4135A Safety-Related Relay Module, operates as a dedicated hardware component for safety-related circuits within HIMatrix Safety Systems platforms.

Hardware Specifications

SIL3 Certification and Fail-Safe State Execution

The H4135A satisfies strict requirement criteria for functional safety, securing an infrastructure path capable of SIL3 certification and fail-safe state execution. Operating as a hardware-based relay amplifier, the module enforces a de-energize-to-trip safety standard to handle interlock signals up to Requirement Class RC1...RC6 parameters. Integrated galvanic isolation separates the low-current logic input boundary from the floating NO field contacts, restricting transient faults and validating localized safety instrumented loop execution under critical shutdown criteria.

Frequently Asked Questions

Q: What physical state do the output contacts assume when control input power to the H4135A is removed?

A: The module executes a de-energize-to-trip sequence, causing the floating NO (Normally Open) contacts to automatically drop open and isolate the connected field loops.

Q: Is structural performance affected if the module is mounted vertically rather than horizontally?

A: No. The physical construction allows horizontal or vertical installation layout orientations on standard DIN rails without modifying execution timing or requiring thermal assembly margins.

Q: Can this unit handle high-vibration field applications without terminal degradation?

A: Yes, provided the wiring terminations use the maximum wire cross-section up to 2.5 mm2 (AWG 14) and are secured to prevent mechanical tension across the internal relay casing boundaries.

Field Installation Guidelines

• Mounting Rail Stability: Fix the compact terminal enclosure onto a standard top-hat DIN rail (DIN 32 mm) or C-profile. Ensure the locking tabs engage the rail securely to avoid structural dislodgement.
• Terminal Wiring Constraints: Terminate all connections using stranded copper wire with a maximum cross-section of 2.5 mm2 (AWG 14). Strip insulation uniformly to avoid exposed conductor segments.
• Contact Shielding Protocols: Route the 24 VDC inductive coil power loops in a discrete pathway isolated from data communication cables to mitigate electromagnetic induction.
• Environmental Enclosure Limits: Mount the IP20 housing inside a dust-free and moisture-controlled industrial electrical panel to preserve operations across the -25 to +60 deg C temperature span.