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Safety Relay

Safety relays are designed to monitor and manage safety-critical functions in industrial systems, ensuring machines shut down safely in the event of an emergency or system fault. Used in applications such as emergency stops (E-STOPs), light curtains, safety gates, pressure-sensitive mats, and two-hand control systems, these relays are essential for meeting industry safety standards.

Models like the Square D LUCA05FU and components from Allen-Bradley, available through LiveWire Electrical Supply, are built with redundant internal circuits and automatic self-checking functionality. These features ensure that even if one component fails, the system remains operational and safe.

LiveWire Electrical Supply offers a curated selection of safety relays and components for both new installations and replacement needs. For assistance identifying the right part or checking availability, call 1-650-692-0700 any time – our experts are ready to help.

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Frequently Asked Questions

LiveWire Electrical Supply is your trusted source for hard-to-find electrical supplies, offering a wide selection of circuit breakers, fuses, safety switches, and industrial control products—all ready to ship the same day. With real-time stock and price checks, you can easily find what you need at competitive prices, whether for residential, commercial, or industrial projects. Our experts are available to assist with part identification and technical support, while our expedited shipping options and free UPS Ground shipping on qualifying orders ensure fast delivery. For 24/7 assistance and personalized support, call 1-650-692-0700.

How does a safety relay work?

A safety relay evaluates input signals from safety devices (such as E-STOPs or gate switches) and deactivates the output if a fault or unsafe condition is detected. Redundant design and built-in diagnostics help ensure system reliability.

How do you wire a safety relay?

Connect safety input devices to the relay’s input terminals, and route the output to the control circuit. Always consult manufacturer wiring diagrams, such as those for the Square D LUCA05FU or Allen-Bradley models, to ensure proper operation.

What makes a safety relay reliable?

Internal redundancy, contact feedback monitoring, and self-testing mechanisms are key features that maintain reliable operation, even during power cycles or partial failures, ensuring compliance with standards like EN 60204-1.

Shipping and Returns

Easy Returns
You may return items within 30 days of delivery for a refund. Please view our return policy here.

FREE Shipping on orders over $100

We offer one to five-day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s). Please view our shipping policy here.

Same-Day Shipping

We strive to ship out your items within one business day. The shipping process may take up to 5 business days on some occasions. Feel free to contact us if your order is time sensitive. Call 1-650-692-0700 or email [email protected] for help.

Limited Warranty

Warranty Gurantee
LiveWire certifies that every product shipped out of stock, by manufacturers and by fulfillment partners will be free of functional defects for one (1) year. If any part is found with functional defects during the warranty period, LiveWire will send out a replacement item for free. Warranty items must be returned to LiveWire for inspection and must be postmarked within the warranty period.

Contact our support team by emailing [email protected] or calling 1-650-692-0700 during normal business hours for help with your warranty claim.

Disclaimer: Livewire Electrical Supply is not affiliated with, authorized by, or acting as a representative for the brands showcased on our platform. Please be aware that products sold by Livewire Electrical Supply do not include the original manufacturer’s warranty. All trademarks, brand names, and logos featured on this website belong to their respective owners. It’s important to note that this website is not endorsed, sanctioned, or approved by any of the manufacturers or trademark holders mentioned.

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