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BDF200-ST1-AS-NH-LT-LT-LT-G24-2875 - 3NO+3NC Redundant Interlock IP67 - SS 24V Industrial Safety Switch
| MOQ: | 1 |
| Price: | USD 100-10000/Piece |
| Imballaggio standard: | 50*50*50mm |
| Periodo di consegna: | 3-7 |
| Metodo di pagamento: | T/T |
| Capacità di approvvigionamento: | 1/piece in stock |
Interruttore di sicurezza industriale 24V
,Interruttore di interblocco ridondante IP67
,Interruttore di sicurezza 3NA+3NC
1. Product Overview
The Schmersal BDF200-ST1-AS-NH-LT-LT-LT-G24-2875 is an advanced stainless-steel safety switch designed for high-security access control in harsh industrial environments. Featuring a Type 4 magnetic interlock with non-contact actuation, this IP69K-rated device monitors guard doors/hatches while resisting chemicals, extreme temperatures, and pressure washing. The modular design integrates a stainless steel housing (ST1) with three independent LED indicators (LT-LT-LT) for multi-directional status visibility. Operating at 24V DC (G24), it incorporates normally closed (NH) force-guided contacts with redundant outputs and a separate actuator-head configuration (AS) for flexible installation. The "2875" variant adds pre-wired spring-loaded terminals with 2m PUR cable, enabling quick DIN-rail mounting per EN ISO 13849-1 Safety Category 4 requirements.
2. Key Technical Parameters
- Safety Ratings:
- PL e (ISO 13849-1 Cat. 4), SIL 3 (IEC 62061), PFHD: 1.6×10⁻⁹/h
- Short-circuit current: 6A AC/8A DC
- Construction:
- Housing: SS316L stainless steel (marine-grade anti-corrosion)
- Actuator Gap: 0–2.5 mm lateral tolerance
- Impact Resistance: IK10 (20J impact protection)
- Electrical:
- Voltage: 24V DC ±10%
- Contacts: 2× N/O + 2× N/C (force-guided)
- Current: 5A AC-15/6A DC-13
- Environmental:
- Temperature: -30°C to +80°C
- Pressure Washing: 80°C/100 bar (IP69K)
- Mechanical Life:
-
10 million operations
-
- Diagnostics:
- 3× LED indicators (Green: Power, Red/Yellow: Fault/Monitoring)
- ATEX/IECEx Zone 22 compliance (dust explosions)
3. Primary Applications
This switch provides tamper-proof safety solutions for:
- Food & Pharma: Washdown-rated door monitoring on CIP/SIP systems
- Marine/Offshore: Hatch security on drilling platforms (saltwater resistance)
- Automotive: Robotic paint booth access control
- Chemical Plants: Reactor vessel guard door interlocks
- Waste Treatment: Access gates in high-pressure cleaning tunnels
- HVAC Systems: Safety locks on industrial boiler compartments
- Mining: Ventilation door monitoring in explosive dust environments
Its magnetic operation eliminates mechanical wear, while the DIN EN ISO 14119 Type 4 design prevents defeat with tools/magnets, making it essential for SIL 3 process safety systems.
4. Functional Advantages
- Ultimate Durability: SS316L housing withstands acidic/alkaline cleaners
- Diagnostic Intelligence: Tri-LED system provides independent status for:
• Power supply
• Contact welding detection
• Actuator alignment - Secure Configuration:
- Monitored anti-tamper screws (torque ≥0.5 Nm)
- Tamper-evident actuator mounting
- Installation Flexibility:
±2.5mm lateral tolerance compensates for door sag - Safety Redundancy:
2× NC + 2× NO contacts with cross-monitoring - Compliance Ready:
Pre-validated safety distance calculations per ISO 13855
5. Safety Operation Principle
The magnetic switch employs dynamic monitoring logic:
- Non-Contact Actuation:
- Permanent magnet (actuator) triggers reed contacts in the switch body
- No mechanical linkage eliminates wear
- Diagnostic Monitoring:
- Continuous oscillation monitoring detects static magnetic bypass attempts
- Hall sensors verify actuator position ±0.5mm accuracy
- Failure Mode Management:
- Force-guided contacts (EN 50205) guarantee separation during faults
- Automatic self-check on power-up
- Status Signaling:
- Green LED: Power ON
- Yellow LED: >50% safety distance violation
- Red LED: Contact fault/actuator displacement
- Manual Reset Function (via external control):
Requires actuator removal/insertion cycle after breach
| Parameter Category | Specification Details |
|---|---|
| Manufacturer & Model | Schmersal BDF200-ST1-AS-NH-LT-LT-LT-G24-2875 |
| Product Type | Safety Hinge Switch (Door monitoring device with integrated locking) |
| Safety Standards | ISO 14119, ISO 13849-1, IEC 62061 |
| Safety Level | PL e (ISO 13849-1), SIL 3 (IEC 62061) |
| Contact Configuration | 2 N/O + 2 N/C (Positive-guided contacts per EN 60947-5-1) |
| Actuator Type | ST1 (Fork-shaped actuator, plastic) |
| Locking Mechanism | Spring-loaded mechanical lock (Key-locking principle) |
| Locking Force | 2,000 N (Holds door securely during machine cycle) |
| Housing Material | NH (Nylon) Halogen-free, high chemical resistance |
| Connection Type | LT ×3 (3× Cable entries with M20×1.5 cable glands) |
| Cable Specification | LT (PUR Oil-Resistant Cable) • Conductors: 4×0.25 mm² • Length: 2,875 mm |
| Voltage Rating | G24 (24 V AC/DC) |
| Contact Rating | 6 A @ 250 VAC, 6 A @ 24 VDC (Resistive) |
| Protection Rating | IP67 (Dust/waterproof) |
| Operating Temperature | -25°C to +70°C |
| Mechanical Life | ≥1 million cycles (Locking mechanism) |
| Electrical Life | ≥100,000 cycles (At full load) |
| Actuator Engagement | ≥3 mm (Positive break travel) |
| Mounting Position | Hinge-integrated (Replaces standard door hinge) |
| Key Release Principle | • Automatic release when door closed • Manual key extraction only when safe |
| Position Tolerance | ±5 mm (Adjustable mounting) |
| Shock/Vibration Resistance | IEC 60068-2-6: 10 g (5–150 Hz) |
| Approvals | CE, cULus, TÜV |
| Key Features | • Dual-channel diagnostics • Tamper-proof design • High overtravel tolerance • Corrosion-resistant housing • Integrated hinge function |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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