Description

HIMA K9203A Safety Relay Output Module

Technical Specifications

• Product Model: K9203A
• Brand: HIMA (Germany)
• Warranty: One Year
• Order Code: 996920360
• Input Voltage: 24 VDC (18‑30 VDC), powered by H41q / H51q rack backplane
• Operating Temperature: 0 °C ~ +60 °C rack‑mount
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: ≤15 ms relay actuation response
• Protection Class: IP20, cabinet‑only indoor installation
• Safety Certification: IEC 61508 SIL 3 certified for safety‑instrumented loops
• Output Contact: 2‑channel safety relay normally‑open contacts; 8 A @250 VAC / 8 A @30 VDC per channel
• Electrical Mechanical Life: Greater than 100 000 operations under rated load
• Diagnostics: Relay circuit self‑monitoring; front‑panel LED status indicators; fault feedback to HIMA safety CPU
• Galvanic Isolation: Field‑contact side vs backplane control side 1500 VAC isolation
• Mounting: Standard HIMA H41q/H51q rack slot form‑factor
• Dimensions / Weight: 235 mm × 160 mm × 30 mm; approx 0.44 kg

Product Overview

The K9203A is a safety‑rated relay output module for HIMA H41q and H51q safety PLC platforms. It receives safety logic commands from the rack CPU and drives field safety loads such as emergency shutdown solenoid valves, safety contactors and alarm beacons via certified safety relay contacts. Built‑in relay monitoring circuits detect contact faults and feed diagnostic information back to the safety controller. SIL 3 compliance makes it suitable for emergency shutdown (ESD), burner management (BMS) and turbine safety protection loops within oil‑gas, chemical and power‑plant heavy‑EMI cabinet environments.

This safety output module addresses safety‑loop execution challenges: certified relay‑based safety outputs, built‑in contact diagnostics, galvanic isolation for field‑circuit protection, drop‑in spare‑part compatibility for legacy H41q / H51q retrofit‑maintenance projects. Safety‑system automation engineers, process‑plant maintenance technicians and retrofit integrators benefit most. Typical applications: refinery ESD safety cabinets, chemical‑plant BMS burner control, power‑plant auxiliary safety interlock systems.

Key Application Notes

‑Rack‑mount safety output module; cannot operate standalone. Requires HIMA H41q / H51q safety CPU, base rack and HIMA SILworX configuration software. ‑K9203A uses safety relay contacts; strictly respect contact current derating for inductive loads. ‑Not hot‑swap capable: rack 24 VDC safety power must be fully de‑energized before module replacement. ‑Original OEM production discontinued; aftermarket surplus/refurbished spare parts circulate for legacy safety‑system maintenance. ‑Conformal‑coated hardware variant exists for high‑humidity, corrosive cabinet environments. ‑Follow HIMA K9203A hardware manual for SIL‑3 safety‑loop wiring requirements, load‑derating rules and diagnostic troubleshooting.