Description
Product Name : 440G-EZS21STL05J Allen‑Bradley Input module
Product details:
The Allen-Bradley 440G-EZS21STL05J is a high-performance Guardmaster® EZ Gate RFID Safety Switch designed to provide robust interlocking and guard locking for industrial machinery. Combining physical locking capabilities with advanced RFID uniquely coded actuators, this switch ensures that personnel are kept away from dangerous machinery while it is in motion, and prevents unauthorized tampering.
The “EZ” series is specifically engineered for quick installation, high reliability, and seamless integration into modern safety control systems.
Technical Specifications (Product Parameters)
Below are the key technical parameters for the 440G-EZS21STL05J:
| Parameter | Specification |
| Brand / Manufacturer | Allen-Bradley / Rockwell Automation |
| Model / Cat. No. | 440G-EZS21STL05J |
| Product Type | RFID Guard Locking Interlock Switch |
| Actuator Type | Uniquely Coded RFID (High Level Coding per ISO 14119) |
| Locking Type | Power-to-Lock (Spring Release / Electromagnetic Lock) |
| Safety Outputs | 2 x OSSD (Output Signal Switching Devices), 24V DC |
| Auxiliary Outputs | 1 x Non-safety monitoring output |
| Holding Force (F_{zh}) | Up to 500 N (Newton) |
| Supply Voltage | 24V DC (+10% / -15%) Class 2 |
| Connection Type | 5-pin Micro (M12) Quick Disconnect / Pigtail |
| Enclosure Rating | IP67, IP69K (Washdown rated) |
| Safety Ratings | PLe, Cat 4 (EN ISO 13849-1), SIL CL3 (IEC 62061) |
| Housing Material | Heavy-duty, chemically resistant plastic / die-cast zinc |
Product Advantages
- High Tamper Resistance: Utilizing advanced RFID technology with unique coding prevents operators from bypassing the safety switch using spare actuators or tools.
- Superior Environmental Protection: With IP67 and IP69K ratings, the switch is completely dust-tight and can withstand high-pressure, high-temperature washdowns, making it ideal for food, beverage, and pharmaceutical industries.
- Space-Saving & Diagnostic-Friendly: Features a compact design with highly visible, 270-degree LED indicators that provide real-time status of the lock, guard position, and potential faults for rapid troubleshooting.
- Easy Alignment: Tolerates slight guard misalignment, reducing nuisance trips and mechanical wear over time.
- Highest Safety Compliance: Meets the stringent requirements for Category 4/PLe and SIL 3 applications without needing additional external monitoring loops.
Precautions & Installation Notes
⚠️ IMPORTANT SAFETY WARNING
Safety interlocking devices must be installed by qualified personnel in accordance with applicable local and international safety regulations (e.g., ISO 14119, ISO 13849-1).
- Power-to-Lock Risk Assessment: The 440G-EZS21STL05J is a Power-to-Lock model. This means that if power is lost, the guard will unlock. Ensure a thorough risk assessment proves that a power failure will not result in an immediate hazard to operators before using this model.
- Wiring & Power Supply: Always use a regulated 24V DC Class 2 power supply. Incorrect voltage or polarity can permanently damage the internal OSSD electronics.
- Mechanical Stops: Do not use the safety switch as a mechanical stop for the guard door. Always install a separate, dedicated physical door stop to prevent physical damage to the switch from slammed doors.
- Actuator Pairing: Because this unit uses uniquely coded RFID, the actuator must be properly taught/paired to the switch base during commissioning. Refer to the instruction manual for the exact pairing sequence.
Product Applications
The 440G-EZS21STL05J is widely used in automated industrial environments where machinery has a high inertia/run-down time or where controlled access is mandatory. Typical applications include:
- Food & Beverage Processing: Perfect for washdown zones, bottling lines, and packaging machinery.
- Automotive Assembly: Used on robotic welding cells, stamping presses, and conveyor gates.
- Pharmaceutical Manufacturing: Ideal for cleanrooms and automated chemical blending enclosures requiring frequent sanitization.
- Material Handling: Safeguarding high-speed palletizers, sortation systems, and automated storage/retrieval systems (ASRS).
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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