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zQ 900-02 - Dual-Contact Redundant Interlock - 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 ZQ 900-02 is a high-security magnetic safety switch engineered for critical access control in demanding industrial environments. Featuring a stainless steel housing (IP69K rated), this device utilizes encrypted RFID-coded magnetic actuation to prevent tampering and defeat attempts. The "02" suffix denotes dual-channel diagnostics with force-guided contacts certified to ISO 13849-1 PL e (Category 4) and IEC 62061 SIL 3. Designed for extreme conditions (-40°C to +85°C), its hermetically sealed construction withstands high-pressure washdowns (150 bar), chemicals (pH 0-14), and mechanical impacts (IK10). The integrated tri-color LED indicators provide 360° visibility of guard position, system status, and diagnostic alerts. With an 8mm switching distance and ±4mm lateral tolerance, it accommodates structural misalignments in heavy machinery applications.
2. Key Technical Parameters
- Safety Ratings:
- PL e (ISO 13849-1 Cat. 4, DCavg=99.8%)
- SIL 3 (IEC 62061, PFHD: 1.1×10⁻⁹/h)
- Performance Level: PL e
- Electrical Specifications:
- Voltage: 24V DC ±10% (19.2-28.8V)
- Contacts: 3 NC force-guided (8A @ 250V AC)
- Power Consumption: ≤2.8W
- Mechanical:
- Housing: AISI 316L stainless steel
- Switching Distance: 8mm ±0.5mm
- Lateral Tolerance: ±4mm
- Environmental:
- IP69K (IEC 60529)
- Chemical Resistance: Resists acids, alkalis, solvents
- Vibration: 20g (IEC 60068-2-6)
- Certifications:
- ATEX/IECEx Zone 21/22
- UL 508, CSA 22.2 No. 14
- FDA 21 CFR 177.2600
3. Primary Applications
This switch is essential for safeguarding hazardous processes:
- Pharmaceutical Isolators: GMP-compliant gloveport monitoring
- Chemical Processing: Reactor access hatches with acid vapor exposure
- Food Production: CIP/SIP washdown areas requiring EHEDG certification
- Marine Engineering: Saltwater-resistant safety gates on offshore platforms
- Automotive Paint Shops: Robotic cell access with solvent resistance
- Sterilization Autoclaves: High-pressure/temperature door security
- Wastewater Treatment: Corrosion-resistant cover monitoring
- Mining Equipment: Explosion-proof zone access control
Its encrypted RFID coding prevents actuator duplication, while IP69K rating ensures reliability in daily 95°C washdown cycles with caustic cleaners.
4. Functional Advantages
- Anti-Tamper Security:
- 128-bit encrypted RFID pairing
- Active magnetic field monitoring
- Predictive Diagnostics:
- Green LED: Guard closed/secure
- Yellow LED: Actuator misalignment >1mm
- Red LED: Critical fault (contact welding)
- Corrosion Defense:
- Electropolished SS316L (Ra ≤0.4μm)
- Crevice-free per EN 1672-2
- Installation Flexibility:
- ±2° angular mounting tolerance
- 360° visible LED indicators
- Safety Redundancy:
- Triple NC contacts with cross-monitoring
- Mechanical contact separation >0.8mm
- Maintenance Optimization:
- Hot-swappable actuator modules
- IP69K-rated M12 connectors (5-pin)
- Compliance Ready:
- 3-A Sanitary Standard 08-19
- SIL 3 templates pre-validated
5. Safety Operation & Architecture
Magnetic Interlock Sequence:
- Authentication:
- Actuator transmits encrypted code via RFID
- Valid authentication closes NC contacts
- Continuous Monitoring:
- Hall sensors track position (±0.2mm)
- Current sensors detect contact anomalies
- Fault Response:
- Stage 1 (Yellow LED): >1mm misalignment → warning
- Stage 2 (Red LED): >2mm displacement → shutdown
- Reset Protocol:
- Physical guard reclosure required
- System self-test (contact gap verification)
SIL 3 Implementation:
- Dual ARM Cortex-M7 processors
- Watchdog timer with 10ms cycle
- ECC memory protection
- Safe-state output on fault (0V)
| Parameter/Attribute | Specification/Description |
|---|---|
| Product Type | Heavy-Duty RFID-Coded Safety Interlock Switch with Guard Locking |
| Model Number | ZQ 900-02 |
| Safety Standards | ISO 13849-1, IEC 62061, IEC 60947-5-1, EN ISO 14119 |
| Safety Level | PL e (ISO 13849-1), SIL 3 (IEC 62061), Category 4 |
| IP Rating | IP69K (Switch head/actuator - withstands high-pressure/steam cleaning) |
| Electrical Rating | AC-15: 250V, 10A DC-13: 24V, 6A |
| Contact Configuration | 3 NC (Normally Closed) Forced-guided, positively driven contacts |
| Locking Force | 3,000 N (Static holding force - industry-leading) |
| Release Mechanism | Solenoid Unlocking (24V DC ±10%, 0.8A) + Manual Emergency Release |
| Operating Principle | 64-bit RFID-Coded Magnetic Actuation (Tamper-proof with 4 million unique codes) |
| Operating Distance | ≤25 mm (Max. installation tolerance) |
| Mechanical Life | ≥ 1,500,000 cycles (no load) |
| Electrical Life | ≥ 300,000 cycles (rated load) |
| Housing Material | Stainless Steel (316L/V4A) (Full corrosion resistance for aggressive environments) |
| Ambient Temperature | -40°C to +85°C (Operation/Storage) |
| Connection Type | Dual Options: • 8-pin M20 cable gland (PG13.5) • 8-pin M12 connector (X-coded) |
| Response Time | <80 ms (Lock release upon de-energization) |
| Isolation Voltage | 4,000 V AC (Between contacts and housing) |
| Mounting | Reinforced flange mount with 4×M6 screws (40×40 mm pattern) |
| Chemical Resistance | Resists acids/alkalis (pH 2-12), solvents, UV radiation (EN 60654-1/3) |
| Shock/Vibration | Shock: 100g (6ms) Vibration: 10-500 Hz, 5g amplitude |
| Approvals | CE, UL, cULus, TÜV, ATEX/IECEx (Zone 21/22), EAC, UKCA |
| Applications | Food processing, pharmaceutical, chemical plants, offshore platforms, high-pressure washdown |
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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