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Allen-Bradley 440G-LZS21SPRH
by Allen-Bradley
Read verified buyer reviews ↓OverviewThe Allen-Bradley 440G-LZS21SPRH is an advanced safety interlock switch designed to deliver exceptional protection for workers in demanding industrial settings. This durable device features a power-to-release function, guaranteeing that dangerous areas remain inaccessible until equipment reaches a safe state. Its integrated RFID standard actuator provides secure, tamper-proof access control, complying with stringent safety regulations. Engineered for dependability and straightforward integration, this switch is a crucial element for modern machine guarding systems.Key Features Enhanced Worker Protection: Prevents entry to hazardous machinery until safe operating conditions are confirmed. Secure RFID Actuator: Standard-coded RFID technology prevents unauthorized circumvention and boosts security. Powerful Securing Mechanism: Offers a significant 1300N (292 lbs) holding force for consistent guard stability. Quick Disconnect (M12 8-pin QD): Simplifies both installation and upkeep, reducing downtime and labor requirements. Reliable PNP Safety Outputs: Delivers accurate and dependable monitoring and status indication for safety circuits. Power-to-Release Operation: Ensures guard locks remain engaged during power outages, reinforcing safety protocols. Durable Industrial Construction: Built to endure rigorous industrial environments, guaranteeing long-term performance. Technical Specifications Brand: Allen-Bradley Model: 440G-LZS21SPRH Operation Type: Power to Release Solenoid Voltage: 24V DC Safety Output Contacts: 2 x PNP (0.2A max.) Auxiliary Output Contacts: 1 x PNP (0.2A max.) - for Lock Status Actuator Type: RFID Standard Holding Force: 1300N (292 lbs) Conduit Entry: 6-inch pigtail with M12 8-pin QD connector Mounting: Panel/Door-mounted application Durability: Heavy-duty industrial safety applications Applications Machine safeguarding in high-risk manufacturing and automation sectors. Safety interlocking for access points to dangerous machinery and zones. Equipment and processes requiring dependable power-to-release safety locking. Automated assembly lines and robotic work cells. Packaging machinery and material handling systems. Why Choose This Model? Uncompromised Safety: The combination of power-to-release and RFID technology provides a superior safety solution. Robust Construction: Manufactured by Allen-Bradley, a leader in industrial automation, ensuring high quality and longevity. Simplified Integration: M12 8-pin QD connector and clear PNP outputs streamline wiring and system integration. Regulatory Compliance: Designed to meet demanding international safety standards, offering peace of mind. Optimized Performance: Provides reliable and consistent operation even in challenging industrial environments. Order NowImprove your industrial safety practices with the Allen-Bradley 440G-LZS21SPRH Guard Locking Safety Switch. This state-of-the-art device combines resilient construction with intelligent safety features, making it an indispensable asset for protecting personnel and enhancing operational efficiency. Explore our comprehensive selection of Allen-Bradley Guardmaster 440G Safety Interlock Switches for additional choices. For a complete industrial automation solution, browse our full range of Allen-Bradley Industrial Automation Products. Secure your operations today!FAQWhat is the primary function of the Allen-Bradley 440G-LZS21SPRH?Its primary function is to provide advanced guard locking for industrial machinery, ensuring personnel safety by keeping hazardous areas inaccessible until machinery is in a safe state.What is the holding force of this safety switch?This safety switch boasts a substantial 1300N (292 lbs) holding force, ensuring strong and reliable guard security.How does the power-to-release mechanism enhance safety?The power-to-release mechanism ensures that the guard remains locked during power outages, thereby maintaining safety protocols and preventing accidental access to hazardous areas.Is the Allen-Bradley 440G-LZS21SPRH suitable for demanding industrial environments?Yes, it features a durable industrial design, built to withstand rigorous conditions and provide long-term performance in heavy-duty safety applications.What type of actuator does this model use?It utilizes a standard-coded RFID actuator, which prevents unauthorized bypassing and enhances security by ensuring tamper-resistant access control.
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Allen-Bradley 440G-LZS21SPRH
Overview
This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Allen-Bradley catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Allen-Bradley automation ecosystem
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Allen-Bradley platform with documented conversion notes
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Brand: Allen-Bradley
- Model: 440G-LZS21SPRH
- Operation Type: Power to Release
- Solenoid Voltage: 24V DC
- Safety Output Contacts: 2 x PNP (0.2A max.)
- Auxiliary Output Contacts: 1 x PNP (0.2A max.) - for Lock Status
- Actuator Type: RFID Standard
- Holding Force: 1300N (292 lbs)
- Conduit Entry: 6-inch pigtail with M12 8-pin QD connector
- Mounting: Panel/Door-mounted application
- Durability: Heavy-duty industrial safety applications
Applications
- Machine safeguarding in high-risk manufacturing and automation sectors.
- Safety interlocking for access points to dangerous machinery and zones.
- Equipment and processes requiring dependable power-to-release safety locking.
- Automated assembly lines and robotic work cells.
- Packaging machinery and material handling systems.
Why Choose the 440G-LZS21SPRH?
- Uncompromised Safety: The combination of power-to-release and RFID technology provides a superior safety solution.
- Robust Construction: Manufactured by Allen-Bradley, a leader in industrial automation, ensuring high quality and longevity.
- Simplified Integration: M12 8-pin QD connector and clear PNP outputs streamline wiring and system integration.
- Regulatory Compliance: Designed to meet demanding international safety standards, offering peace of mind.
- Optimized Performance: Provides reliable and consistent operation even in challenging industrial environments.
Availability & Shipping
- ▸In stock: 440G-LZS21SPRH ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every 440G-LZS21SPRH ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
Machine down? We ship parts the same day.
New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
Related Allen-Bradley resources
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.