HIMatrix F3422 (8-channel fail-safe relay output module)

I. Basic Overview

Model: F3422

Brand: HIMA (Black Horse)

Series: HIMatrix F3 / H41q / H51q Safety System

Type: 8-channel fail-safe relay output module (8-Fold Relay Module)

Safety Level: SIL3 (IEC 61508), PL e, AK6, Cat.4 (TÜV Certified)

Applications: SIS/ESD/BMS/F&G, drives solenoid valves, contactors, alarm lights, etc.

Installation: Standard 4TE rack slots, supports hot swapping

II. Core Electrical Parameters

Channels: 8 independent relay outputs (single-pole double-throw SPDT)

Contact capacity: 250VAC / 30VDC, 5A (resistive)

Maximum switching voltage: 250VAC / 110VDC

Backplane power supply: 24VDC, typical power consumption ≤ 2W

Insulation isolation: 1500Vrms isolation between channels, system side and field side

Operating temperature: -20℃ to +60℃

Protection / Size: IP20; 4TE (approximately 20mm wide)

Weight: Approximately 0.4kg

III. Functions and Safety Mechanisms

Safety architecture: Fail-Safe, contacts safely open when power is lost / faulty

Drive capability: Directly drives 24V/48V solenoid valves, small contactors, alarm horns

Self-diagnosis: Full coverage self-diagnosis, detects coil / contact faults, short circuits, open circuits

Indicator lights: Status LEDs for each channel, power / fault LEDs for easy maintenance

Redundancy support: Compatible with QMR/TMR architecture, meets high safety redundancy requirements

IV. Typical Applications

ESD emergency stop: Critical valves, actuator drives

BMS boiler management: Fuel valves, igniters, purge valves control

F&G fire protection system: Alarm horns, sprinkler valves, fire door interlocks

High-reliability interlock: Third-party system dry contact interface, safety barrier post-stage amplification

V. Comparison of Modules in the Same Series

F3422: 8-channel relay outputs, 250VAC/5A, SIL3

F3414: 4-channel relay outputs, 250VAC/5A, standard type

F3417A: 4-channel relay amplifier, 24/48VDC, 4A per channel

F3405: 4-channel basic relay outputs, 250VAC/5A

VI. Wiring and Maintenance

Control input: 24VDC safety control signal on the system side

Output wiring: Each channel COM (common terminal), NO (normally open), NC (normally closed)

Maintenance: Supports hot swapping, allows online replacement without affecting the system; diagnostic information can be read via SILworX/ELOP II software