Product Short Description
- Product Name: HIMA BV7046-4 (B-V7046-4) Safety Relay Module / Emergency Shutdown Relay
- Product Introduction: The HIMA BV7046-4 is a safety relay module developed by HIMA (Germany) for safety-critical automation. It provides fail-safe relay switching for emergency shutdown, fire and gas protection, and conforms to SIL 3 (IEC 61508), PL e (ISO 13849-1) and Cat.4 (EN 954-1).
Description
- Technical Specifications:
- Model: BV7046-4
- Type: Safety relay module
- Relay channels: 6 independent relay outputs
- Relay type: Electromechanical, normally open (NO) contacts
- Rated voltage: 24 VDC nominal
- Contact rating: Up to 2 A @ 24 VDC (resistive load)
- Communication: SafeEthernet and HIMA system bus compatible
- Diagnostics: Integrated fault detection, LED indicators, status feedback
- Safety certification: SIL 3 (IEC 61508), PL e (ISO 13849-1), Cat.4 (EN 954-1)
- Operating temperature: –20°C to +60°C
- Mounting: DIN rail or panel mount
- Dimensions: 100 mm × 100 mm × 50 mm
- Weight: 0.5 kg
- Protection: Resistant to vibration, dust and industrial contaminants
- Key Features: Redundant and fail-safe design, real-time diagnostics, robust industrial housing, SIL 3 compliance.
- Application Scenarios: Oil & gas, chemical plants, power industry, and other process automation fields requiring emergency shutdown and functional safety.
- Structural Characteristics: 6 independent electromechanical NO relay channels integrated in a compact DIN-rail enclosure.
- Working Principle: On receiving safety commands via SafeEthernet or HIMA system bus, the module actuates electromechanical relays to de-energize or isolate hazardous loads; built-in diagnostics continuously monitor contact and channel health.
- Installation Requirements: Mount on DIN rail or control panel; ensure 24 VDC supply within nominal range; allow ventilation for –20°C to +60°C operation.
- Usage Notes: Verify SIL 3 wiring topology before energizing; do not exceed 2 A per contact at 24 VDC resistive load; regularly check LED diagnostics for fault indication.





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