Product Details
Product Description
The Allen Bradley 440R-W23218 Guardmaster MSR320P is a modular safety relay designed for monitoring and controlling machine safety functions. Built for industrial environments, it provides dependable relay switching and integrates into safety systems requiring certified compliance. Its compact design and DIN rail mounting make installation straightforward, while its robust construction ensures long-term reliability.
Technical Specifications
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Manufacturer Allen Bradley
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Product Line Guardmaster Safety Relays
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Product Type Safety Relay Module
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Part Number 440R-W23218
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Relay Type MSR320P
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Category Safety Systems
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Subcategory Safety Relay
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Weight 0.75 lbs (0.34 kg)
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Mounting Style DIN rail
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Operation Modular monitoring safety relay
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Certifications UL, CE, CSA (legacy compliance)
Application Scenarios
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Machine safety monitoring in industrial automation systems
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Integration into modular Guardmaster relay networks
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Applications requiring certified safety relay modules for operator protection
FAQ
Q: What type of relay is the 440R-W23218? A: It is a Guardmaster MSR320P modular monitoring safety relay.
Q: How is the module installed? A: It is DIN rail mountable for easy integration into control panels.
Q: What is the weight of the unit? A: Approximately 0.75 lbs (0.34 kg).
Comparable Models
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440R-W23218: MSR320P modular safety relay (this model)
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440R-W23221: MSR330P safety relay with immediate output response
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440R-W22917: MSR127 dual-channel safety relay
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
FAT vs SAT in Industrial Control Systems: Key Differences and Execution Guide
Industrial control system deployment relies on strict verification protocols to guarantee operational safety, system stability, and regulatory compliance. Commissioning complex Programmable Logic Controller (PLC) racks, Distributed Control Systems (DCS), and Safety Instrumented Systems (SIS) requires two critical milestones: the Factory Acceptance Test (FAT) and the Site Acceptance Test (SAT). Both procedures validate that system automation meets design specifications, but they occur at different stages of project execution and target distinct operational risks.
Hub vs Switch vs Router in Industrial Automation Architecture
Modern factory automation relies on reliable industrial networking infrastructure to exchange real-time field data across operational technology systems. Engineers often encounter networking hardware like hubs, switches, and routers when integrating Programmable Logic Controllers, Distributed Control Systems, and SCADA monitoring nodes. Although these devices share physical ports, they operate at different layers of the Open Systems Interconnection reference model and deliver distinct traffic management capabilities.
Marshalling Cabinet Preventive Maintenance: Essential Healthiness Checks for PLC, DCS, and ESD Systems
Marshalling cabinets serve as the vital interface between field instrumentation and control room electronics in modern process facilities. Regular preventive maintenance of these cabinets ensures signal integrity across programmable logic controllers (PLCs), distributed control systems (DCS), and emergency shutdown (ESD) networks. System technicians must execute structured inspection protocols to mitigate environmental risks, identify loose wiring, and maintain continuous operational readiness.