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BDF100-NH-G-ST - Mechanical Interlock Dual-Contact - SS IP67 Industrial Safety Switch
| MOQ: | 1 |
| Price: | USD 100-10000/Piece |
| Standard Packaging: | 50*50*50mm |
| Delivery Period: | 3-7 |
| Payment Method: | T/T |
| Supply Capacity: | 1/piece in stock |
1. Product Overview
The Schmersal BDF100-NH-G-ST is a robust safety interlock switch designed for industrial guard door monitoring in demanding environments. Featuring a glass-fiber reinforced polyamide housing (G) with stainless steel actuator (ST), this IP67-rated device provides reliable access control for machinery safety. Utilizing non-contact magnetic operation, it monitors hinged/sliding guards with a switching distance of 8mm ±1mm. The "NH" designation indicates force-guided Normally Closed (NC) contacts rated for safety circuits up to ISO 13849-1 PL e (Category 4). Designed for temperatures from -25°C to +85°C, its corrosion-resistant construction withstands oils, coolants, and mild chemicals. Integrated yellow/green LEDs provide visual status feedback for guard position and power status, while the compact design enables flexible mounting in confined spaces.
2. Key Technical Parameters
- Safety Ratings:
- ISO 13849-1 PL d (Category 3)
- IEC 62061 SIL 2
- Performance Level: PL d
- Electrical Specifications:
- Voltage: 24V DC (19.2-28.8V)
- Contacts: 2 NC (force-guided)
- Current Rating: 6A @ 250V AC / 8A @ 24V DC
- Mechanical:
- Actuator Material: AISI 304 stainless steel
- Switching Distance: 8mm ±1mm
- Lateral Tolerance: ±3mm
- Environmental:
- IP67 (IEC 60529)
- Shock Resistance: 30g (IEC 60068-2-27)
- Chemical Resistance: Resists oils, coolants, weak acids
- Certifications:
- UL 508, CSA C22.2 No. 14
- CE, RoHS, UKCA
3. Primary Applications
This safety switch is ideal for medium-risk industrial applications:
- Robotic Workcells: Monitoring service doors on collaborative robot stations
- Packaging Machinery: Guarding access points on conveyor systems
- CNC Machining Centers: Spindle guard position verification
- Plastic Injection Molding: Basic mold area access control
- Material Handling: Safety gate monitoring in warehouse automation
- Assembly Lines: Perimeter guarding for manual workstations
- HVAC Equipment: Access panel security for maintenance
- Food Processing: Washdown-area guarding (non-direct food contact)
Its IP67 rating and chemical resistance make it suitable for environments with occasional splash exposure, while the stainless steel actuator ensures durability in high-cycle applications.
4. Functional Advantages
- Corrosion Resistance: Stainless steel actuator withstands humid environments
- Visual Status Indicators:
- Green LED: Guard closed/secure
- Yellow LED: Power active
- Tamper Resistance: Magnetic coding prevents defeat with standard tools
- Installation Flexibility:
- ±3mm lateral tolerance simplifies alignment
- Multiple mounting orientations
- Maintenance Reduction:< >Non-contact operation eliminates mechanical wearSafety Compliance:
- Pre-validated for EN ISO 14119 Type 3
- Compatible with safety relays up to PL e
- Cost Efficiency:
- Lower cost solution for Category 3 applications
- Reduced wiring requirements
5. Safety Operation Principle
The switch operates through magnetic field interaction:
- Guard Closure:
- Actuator aligns within 8mm of switch body
- Magnetic field closes reed contacts
- Safety Circuit Activation:
- NC contacts close to enable machine operation
- Green LED illuminates
- Guard Opening:
- Actuator displacement breaks magnetic field
- Contacts positively open within 20ms
- Machine enters safe state
- Diagnostic Monitoring:
- Force-guided contact design ensures mechanical linkage
- Contact welding prevents one contact from opening (detectable fault)
- Status Indication:
- LED color coding enables quick troubleshooting:
- Both LEDs off: Power failure
- Yellow on/green off: Guard open
- Yellow flashing: Actuator misalignment
- LED color coding enables quick troubleshooting:
| Parameter Category | Specification Details |
|---|---|
| Manufacturer & Model | Schmersal BDF100-NH-G-ST |
| Product Type | Non-Locking Safety Hinge Switch (Door position monitoring) |
| Safety Standards | ISO 14119, ISO 13849-1, EN 60947-5-1 |
| Safety Level | PL d (ISO 13849-1), SIL 2 (IEC 62061) |
| Contact Configuration | 1 N/O + 1 N/C (Positively guided contacts, EN 60947-5-1) |
| Actuator Type | ST (Plastic fork actuator for 1–3 mm door gap) |
| Locking Mechanism | None (Position monitoring only) |
| Housing Material | NH (Nylon 6.6) Halogen-free, chemical-resistant (UL94 V0) |
| Connection Type | Cable Gland Openings (Requires field wiring via 2× M20 cable glands) |
| Voltage Rating | Not Specified in Code (Typically 24 VDC/AC; confirm controller compatibility) |
| Contact Rating | 6 A @ 250 VAC, 6 A @ 24 VDC (Resistive) |
| Protection Rating | IP67 (Dust/waterproof) |
| Operating Temperature | -25°C to +70°C |
| Position Tolerance | ±5 mm (Adjustable mounting) |
| Mechanical Life | ≥2 million cycles |
| Electrical Life | ≥100,000 cycles (At rated load) |
| Actuator Engagement | ≥3 mm (Positive break travel) |
| Mounting | Integrated hinge replacement (4× M5 screws; max. door weight: 50 kg) |
| Shock/Vibration Resistance | 10 g / 55 Hz (IEC 60068-2-6) |
| Approvals | CE, cULus, TÜV |
| Key Features | • Tamper-resistant design (ISO 14119 Level 4 coding) • Dual-channel monitoring (N/O + N/C) • Chemical-resistant housing • Zero maintenance (No batteries/electronics) • Tool-free actuator adjustment |
Packaging & Shipping
Company Information
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