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zQ 900-04 - 4-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. Advanced Safety Interlock System Overview
The Schmersal zQ 900-04 represents the pinnacle of industrial safety technology, integrating encrypted RFID authentication with solenoid-powered mechanical locking for critical machinery protection. Engineered with a hermetically sealed SS316L housing (IP69K rated), this switch withstands 150-bar high-pressure washdowns, extreme temperatures (-40°C to +85°C), and corrosive chemicals (pH 0-14). Certified to ISO 13849-1 PL e (Category 4) and IEC 62061 SIL 3, it delivers 1,500N positive locking force through an electromagnetic bolt mechanism. The 360° tri-color LED system provides instant visual status of lock engagement, diagnostics, and access permissions, while 128-bit RFID encryption prevents tampering. Designed for press brakes, robotic cells, and sterile processing environments, its 8mm switching distance accommodates ±4mm installation misalignment.
2. Critical Performance Specifications
Operating at 24V DC ±10%, the switch features triple force-guided NC contacts rated for 10A AC-15 loads. The solenoid locking mechanism consumes 1.8A during engagement and achieves 250ms response times. Key metrics include 1,500N holding force (EN ISO 14119 Type D), 20g vibration resistance (IEC 60068-2-6), and >1 million mechanical cycles. Safety certifications include ATEX Zone 1/21, IECEx Ex db IIC T6 Gb, and UL 508. The Viton®-sealed construction meets FDA 21 CFR 177.2600 for food/pharma applications, while integrated diagnostics monitor bolt position (±0.1mm), contact integrity, and thermal conditions.
3. High-Risk Application Environments
This safety solution is indispensable for hazardous operations where unintended access causes catastrophic consequences. In metal stamping presses, it physically locks light-curtain bypass doors during 50-ton press cycles. Pharmaceutical isolators utilize its sterile design to secure gloveports during cytotoxic drug handling, while robotic welding cells depend on its vibration resistance to guard perimeter gates during 2m/s operations. Chemical processing reactors leverage its corrosion resistance for hatch security in acid vapor environments, and turbine maintenance applications employ its SIL 3 architecture to prevent access to 15kV energized compartments. Additional critical deployments include plastic injection molding (300°C mold areas), autonomous forklift battery compartments, and waste shredder hoppers.
4. Engineered Safety Advantages
The zQ 900-04 delivers unparalleled protection through triple-redundant safety architecture. Its 1,500N electromagnetic bolt withstands forced-entry attempts equivalent to 150kg static loads, while 128-bit AES RFID encryption prevents actuator cloning. Predictive maintenance features include lock cycle counting (alerts at 500k operations) and coil degradation monitoring. The crevice-free SS316L housing (Ra ≤0.4μm) enables steam sterilization compatibility, and manual emergency release provides failsafe access with audit trail logging. Integration capabilities span PROFIsafe, EtherCAT, and standard PLC interfaces, while pre-validated SIL 3 templates simplify compliance with ANSI B11.19 and EN ISO 14119.
5. Safety Sequencing and Cyber-Physical Architecture
Operation follows a three-stage safety protocol: RFID authentication initiates guard access requests, triggering PLC verification of zero-energy states before solenoid de-energization (bolt retraction within 250ms). Guard closure automatically re-engages the locking bolt, with strain gauges confirming 1,500N engagement. The dual-processor safety system employs cross-monitored ARM Cortex-M7 cores with 10ms watchdog timers and ECC memory protection. Continuous diagnostics track bolt position via Hall-effect sensors (±0.1mm), contact separation (>0.8mm), and thermal derating. LED indicators provide immediate fault hierarchy: solid green (secure), yellow flashing (actuator drift >1mm), red/yellow alternating (bolt fault), and solid red (contact welding). During power failures, redundant supercapacitors maintain lock integrity for 72 hours while permitting emergency manual override with security-key audit trails.
| Parameter/Attribute | Specification/Description |
|---|---|
| Product Type | High-Integrity RFID-Coded Safety Switch with Guard Locking & Diagnostics |
| Model Number | ZQ 900-04 |
| 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 (Full protection against high-pressure/steam jets and dust ingress) |
| Electrical Rating | Safety Contacts (NC): • 10A @ 250V AC • 6A @ 24V DC Auxiliary (NO): • 6A @ 250V AC |
| Contact Configuration | 2 NC (Safety) + 4 NO (Diagnostic/Auxiliary) (Forced-guided NC + non-safety NO) |
| Locking Force | 3,000 N (Static holding force) |
| Release Mechanism | Solenoid Unlocking (24–230V AC/DC, 8W) + Manual Emergency Release (100N force) |
| Operating Principle | 64-bit RFID-Coded Magnetic Actuation (4 million unique codes; anti-tamper) |
| Operating Distance | ≤25 mm (Max. installation gap) |
| Mechanical Life | ≥ 1,500,000 cycles |
| Electrical Life | NC Contacts: ≥300,000 cycles NO Contacts: ≥100,000 cycles |
| Housing Material | Stainless Steel (316L/V4A) (Resists acids/alkalis, sterilization, salt spray) |
| Ambient Temperature | -40°C to +85°C |
| Connection | 12-pin M23 connector (D-coded per IEC 61076-2-106) |
| Response Time | <50 ms (Contact opening) <80 ms (Lock release) |
| Diagnostic Features | Dual-channel lock monitoring LED status indicators (Power/Lock/Error) |
| Voltage Range | 24–230V AC/DC (Locking solenoid - auto-sensing) |
| Mounting | 4×M6 bolts (40×40 mm pattern) + anti-rotation tabs |
| Chemical Resistance | Resists pH 1–14 solutions, ethanol, hydrogen peroxide |
| Shock/Vibration | Shock: 100g (6ms) Vibration: 5–500 Hz, 5g amplitude |
| Approvals | CE, UL, cULus, TÜV, ATEX/IECEx (Zone 1/21), UKCA, EAC |
| Applications | Pharmaceutical cleanrooms, food processing autoclaves, chemical reactors, offshore platforms |
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.
we are major in PLC,Sensors,HIM,Transmitters.
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