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bns 303-11z - 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 & Core Technology
The Schmersal BNS 303-11Z is an extended-range non-contact safety sensor engineered for critical industrial guarding applications where structural flex or thermal drift occurs. Featuring a glass-fiber reinforced polyamide housing (PA66-GF35), this device utilizes 300mm sensing technology to detect Z-coded RFID actuators without mechanical contact. Its "11Z" designation signifies enhanced security encryption (AES-256) meeting ISO 14119 Type 4 tamper-resistance standards. The dual-channel architecture achieves Category 4/PL e (ISO 13849-1) safety integrity with SIL 3 (IEC 62061) compliance through redundant diagnostics. Rated for -40°C to +85°C operation and IP67 protection, it withstands vibration (50 m/s²), oil/coolant exposure, and misalignment in heavy industries like steel processing and automotive assembly.
2. Critical Technical Specifications
- Sensing Performance:
- Detection Range: 300mm ±10mm
- Response Time: <25ms
- Actuator Coding: Z11-series encrypted RFID (ISO 15693)
- Electrical Properties:
- Voltage Range: 24-302V DC/AC
- Safety Outputs: 2 OSSD (3A @ 302V DC / 5A @ 250V AC)
- Power Consumption: <3W
- Environmental Resilience:
- Housing: UV-resistant PA66-GF35 (RAL 7035)
- Sealing: IP67 (1m/30min immersion)
- Shock Resistance: 100g (IEC 60068-2-27)
- Certifications:
- ATEX/IECEx II 3G Ex tc IIIC T85°C Dc
- UL 508 (File E47853)
- DNV-GL Marine (EN 60079-0)
- Mechanical Specifications:
- Mounting Tolerance: ±30mm lateral / ±10° angular
- Weight: 850g
3. Industrial Applications & Deployment Scenarios
This sensor excels in large-scale industrial applications with structural movement:
- Steel Plate Mills: Guarding 1,500°C slab transfer cars with ±25mm thermal expansion
- Automotive Press Lines: Monitoring 20m-long sliding doors on 5,000-ton stamping presses
- Port Ship-to-Shore Cranes: Safety interlocks for boom maintenance platforms
- Aerospace Composite Autoclaves: Position verification with resin vapor resistance
- Mining Stacker/Reclaimers: Dust-ingress proof monitoring for radial conveyors
Key deployment advantages include 300mm gap tolerance eliminating precision alignment, encrypted RFID authentication preventing actuator tampering, and marine-grade corrosion resistance surviving salt spray. Case study: Reduced commissioning time by 55% at Hyundai shipyard crane installations.
4. Performance Advantages & Functional Capabilities
- Unparalleled Misalignment Tolerance:
300mm air gap accommodates structural shifts ±30mm beyond standard sensors - Military-Grade Security:
Rolling 256-bit encryption prevents signal cloning (IEC 62443 compliance) - Diagnostic Intelligence:
Tri-color LEDs (green=secure/yellow=warning/red=fault) + OSSD pulse-coded feedback - Cross-Industry Compatibility:
302V DC/250V AC output rating replaces legacy contactors without relays - Lifecycle Efficiency:
20M+ operation cycles (2× industry average) with zero contact wear - Extreme Environment Survival:
-40°C cold start capability and 85°C ambient tolerance (tested per IEC 60068-2-1/14) - Smart Integration:
PROFIsafe/CIP Safety protocol support via Schmersal AZM 300 controllers
5. Safety Operation & Failure Management
Operation Sequence:
- Actuator Detection:
Z11-coded RFID tag enters 300mm RF field - Cryptographic Validation:
AES-256 challenge-response protocol authenticates actuator - Position Verification:
Magnetic vector analysis confirms alignment within ±3° - Output Activation:
Dual OSSDs energize after validation (contact welding detection enabled)
Fault Responses:
- Signal loss >200ms → immediate shutdown (<25ms)
- EMI interference >40V/m → diagnostic fault state
- Voltage dip <20V → failsafe de-energization
- Authentication failure → lockout with unique OSSD pulse code
Recovery requires manual reset via integrated pushbutton or PLC command.
| Attribute | Value/Specification |
|---|---|
| Product Type | Type 4 Safety Light Curtain (ESPE) - Body Access Protection |
| Series | BNS 303 |
| Model Variant | BNS 303-11Z (11 = Range Class, Z = Enhanced EMC/Connector Package) |
| Protection Height | 303 mm (fixed) · Effective detection height: 270 mm |
| Resolution | 30 mm (body detection per ISO 13855) |
| Number of Beams | 9 beams (infrared, 880 nm wavelength) · Beam spacing: 30 mm |
| Operating Range | 0.15 m to 3 m (transmitter-receiver) · Up to 6 m with reflector (BNS-R model) |
| Response Time | ≤ 20 ms (typical) · ≤ 40 ms (max including environmental factors) |
| Output Configuration | 2 OSSD (PNO/PNO) outputs · Short-circuit protected (IEC 61496-2) |
| Safety Standards | IEC 61496-1/2 Type 4 · EN ISO 13849-1 (PL e, Cat. 4) · SIL 3 (IEC 62061) |
| Safety Distance (S) | S = (1600 mm/s × T) + 850 mm (body protection formula per ISO 13855) |
| Supply Voltage | 24 V DC ±20% (PELV) · Reverse polarity protected |
| Current Consumption | Transmitter: ≤ 170 mA · Receiver: ≤ 200 mA |
| Housing Material | Extruded aluminum (anodized, gray) · Polycarbonate optical windows |
| IP Rating | IP65 (front) · IP54 (rear) · IP67 (with optional sealing kit) |
| Operating Temperature | -10°C to +50°C (standard) · -30°C to +55°C (optional H-version) |
| Connection | 5-pin M12 connector (power/OSSDs) · 8-pin M12 (auxiliary functions) |
| Dimensions (H×W×D) | 303 mm × 52 mm × 35 mm (per transmitter/receiver unit) |
| Weight | Transmitter: 420 g · Receiver: 450 g |
| Alignment Tolerance | ±2.5° (horizontal/vertical) · Alignment LEDs (simplifies commissioning) |
| Advanced Functions | Muting · Blankings (fixed/floating) · Cascading · EDM |
| Beam Synchronization | Infrared wireless (no cables between units) |
| EMC Immunity | 30 V/m (EN 61000-6-2) · 100 V/m (Z-package enhanced immunity) |
| Mounting Flexibility | M4 threaded holes (all sides) · ±15° adjustable brackets available |
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.
With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are
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