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SMS 4-250-500 - Non-Contact Multi-Channel Safety Sensor - 250V AC/DC IP67 Industrial
| 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 |
Non-contact safety sensor 250V AC/DC
,Multi-channel safety sensor IP67
,Industrial safety sensor with warranty
1. Product Overview
The Schmersal SMS 4-250-500 is a pressure-sensitive safety mat engineered for personnel protection around hazardous machinery. Featuring a 4-zone detection grid within a 250×500mm active area, this mat detects operator presence with ≤25N actuation force. Constructed with IP67-rated polyurethane and stainless steel connectors, it withstands industrial environments (-25°C to +70°C) including exposure to oils, coolants, and mechanical impacts. Certified to ISO 13849-1 PL c (Category 2) and IEC 62061 SIL 1, the system integrates with safety controllers via dual-channel OSSD outputs. The low-profile design (20mm height) prevents tripping hazards while providing reliable area monitoring for robotic cells, press brakes, and automated assembly lines where physical barriers are impractical.
2. Key Technical Parameters
- Safety Ratings:
- PL c (ISO 13849-1 Cat. 2) / SIL 1 (PFHD: 1.2×10⁻⁷/h)
- Mechanical:
- Active Area: 250×500mm
- Mat Thickness: 20mm
- Actuation Force: 20-30N
- Electrical:
- Voltage: 24V DC ±10%
- Outputs: 2× PNP OSSD (100mA)
- Response Time: ≤100ms
- Environmental:
- IP67 (IEC 60529)
- Temperature Range: -25°C to +70°C
- Durability:
-
1 million actuations
- Abrasion-resistant top surface
-
- Connection:
- 5m PUR cable with M12-4pin connector
- Certifications:
- UL 508, IEC 61496-1 Type 3
3. Primary Applications
This safety mat protects personnel in high-risk zones:
- Robotic Workcells: Perimeter guarding for collaborative robots
- Press Brakes: Operator presence detection during bending cycles
- Packaging Machinery: Access prevention near moving conveyors
- Automotive Assembly: Stamping press entry points
- Material Handling: Palletizer safety zones
- CNC Machining: Tool change area protection
- Injection Molding: Mold access monitoring
- Warehouse Automation: AGV charging station safety
Its slim profile allows installation in space-constrained areas while the 4-zone design differentiates between operators and dropped objects to reduce nuisance stops.
4. Functional Advantages
- Tripped State Detection:
- Dual OSSD outputs switch OFF when pressure ≥25N is detected
- Automatic reset when weight is removed
- Impact Resistance:
- Reinforced edges withstand 200kg rolling loads
- Steel-reinforced corners prevent delamination
- Environmental Resilience:
- Resists hydraulic fluids, cutting oils, and coolants
- UV-stable material prevents cracking
- Installation Simplicity:
- Interlocking edges for multi-mat configurations
- M12 connectors enable tool-free replacement
- Diagnostic Capabilities:
- Built-in test button validates circuit integrity
- Status LED indicates mat functionality
- Safety Compliance:
- Pre-validated for EN ISO 13856-1
- SIL 1 templates for safety PLCs
5. Safety Operation Principle
Four-Stage Safety Logic:
- Pressure Detection:
- Any zone activation (≥25N force) changes mat resistance
- Signal Processing:
- Control unit monitors resistance via dual channels
- Safety Output Control:
- OSSD outputs de-energize within 100ms of activation
- Machine Shutdown:
- Safety controller cuts power to hazardous motion
Diagnostic Monitoring:
- Continuous Circuit Check:
- 5mA test current verifies sensor integrity
- Detects cable damage or short circuits
- LED Indicators:
- Green: Normal operation
- Red: Fault (short circuit/cable break)
- Automatic Reset:
- Machine restarts 0.5s after pressure removal
Configuration Options:
- Mat Linking: Up to 10 mats daisy-chained for large areas
- Sensitivity Adjustment: 15-40N force via control unit
- Time Delay: Configurable restart delay (0-30s)
| Parameter | Specification |
|---|---|
| Product Type | Magnetic-Coded Safety Interlock Switch (Actuator-Dependent) |
| Model Number | SMS 4-250-500 |
| Safety Standard | EN ISO 14119, EN IEC 60947-5-1, EN ISO 13849-1 |
| Safety Level | Category 4 / PL e (PLe) per EN ISO 13849-1 |
| Contact Configuration | 4 Contacts: 2 NC (Normally Closed) + 2 NO (Normally Open) |
| Switching Principle | Magnetic Coding (Tamper-proof, code-specific actuation) |
| Contact Rating | 6 A / 250V AC (AC-15) · 3 A / 24V DC (DC-13) |
| Actuation Distance | 250 mm (Maximum operating distance between switch and actuator) |
| Coding Group | 500 (Unique magnetic coding for anti-tampering) |
| Electrical Life | > 1,000,000 cycles (at rated load) |
| Housing Material | Die-cast Zinc (Switch) · Stainless Steel (Actuator, AISI 303) |
| Protection Rating | IP67 (Switch & Actuator) - Dustproof and waterproof up to 1m immersion |
| Ambient Temperature | -25°C to +70°C (Operation) |
| Connection Type | Plug Connector (M12 x 1) · 5-pin (A-coded) |
| Voltage Range | 24–240V AC/DC (Universal voltage) |
| Actuator Style | Rectangular Flag-Type (Material: Stainless Steel) |
| Mounting | Switch: 2x M5 threaded holes · Actuator: M5 or M6 fastening |
| Misalignment Tolerance | ±3 mm (Axial) · ±2° (Angular) |
| Vibration Resistance | 10–55 Hz, amplitude 1 mm (EN 60068-2-6) |
| Shock Resistance | 100 m/s² (6 ms duration, EN 60068-2-27) |
| RFID Identification | Integrated ISO 15693 RFID chip (Traceability & counterfeit protection) |
| Approvals | CE, UL Listed, cULus, EAC |
| Special Features | Dual-channel monitoring · LED status indicator (optional) · High resistance to metallic dust |
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
perfectly.
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