F-3422 HIMA 981342202 SIL3 8-Channel Relay Output Module
Manufacturer: HIMA
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Part Number: F3422
Condition：New with Original Package
Product Type: Relay Output Modules
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Country of Origin: Germany
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
HIMA F3422 981342202 SIL3 Relay Output Module
Configured for fail-safe switching execution in safety instrumented systems, the HIMA F3422 981342202 (F3422 Relay Output Module) provides direct physical/electrical execution. It controls solenoids, alarms, and industrial relays across 8 electrically isolated SPDT output channels operating on a 24 VDC control input voltage. The assembly maintains a response time under 10 ms to achieve rapid loop actuation, while internal signal paths process fault monitoring diagnostics to verify channel health during operation.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | F3422 981342202 (Base Model: F3422) |
| Brand | HIMA |
| Origin | Germany |
| Weight | 0.25 kg |
| Dimensions | 25 mm x 127 mm x 203 mm |
| Operating Temp | -20 deg C to +60 deg C |
| Power Consumption | 24 VDC control input supply |
| Number of Channels | 8 electrically isolated channels |
| Contact Rating | Up to 250 VAC / 30 VDC, 5 A |
| Contact Configuration | SPDT (Single Pole Double Throw) |
| Actuation Time | < 10 ms |
| Isolation | Electrical isolation between channels and logic backplane |
| Safety Compliance | SIL 3 (IEC 61508), CE, ATEX, TUV |
| Mounting Type | DIN rail |
Triple Modular Redundancy & Galvanic Isolation Architecture
Certified to SIL 3 per IEC 61508 standards, the module incorporates robust galvanic isolation across all 8 relay output channels and the internal control logic bus. This physical insulation prevents high-voltage spikes and ground loops originating in external AC or DC load circuits from damaging central safety controllers. In triple modular redundancy (TMR) architectures, the internal relay logic enforces immediate fail-safe state execution, de-energizing or redirecting output contacts to designated default positions upon detection of control signal disruption or backplane fault events.
Frequently Asked Questions
Q: How does the galvanic isolation within the F3422 maintain system integrity under cross-channel electrical fault conditions?
A: Every SPDT relay output channel features complete electrical isolation from adjacent outputs and internal logic buses. This boundary prevents voltage surges on one output line from propagating into neighbouring control channels or affecting system logic functions.
Q: What precautions are necessary regarding load current limits and temperature constraints during field terminal wiring?
A: Technicians must strictly limit external switching loads to 250 VAC or 30 VDC at a maximum current of 5 A per channel. Additionally, surrounding ambient cabinet temperatures must not exceed +60 deg C to prevent thermal buildup across the internal relay coil circuits.
Field Installation Guidelines
Mount the F3422 securely onto a standard DIN rail inside the control cabinet, confirming that the mounting clip seats fully to guarantee mechanical stability. Connect all incoming 24 VDC control lines and field load wiring to the corresponding screw terminals, maintaining separation between high-voltage AC loads and low-voltage signal cabling. Ensure that all field cable shields terminate at a single chassis earth ground bar to mitigate electromagnetic interference. Leave a minimum 25 mm clearance above and below the module housing to allow adequate natural convection cooling across the housing enclosure.