Product Details
Overview
The Honeywell 51120841-101 is a versatile single-pole double-throw (SPDT) relay module designed for industrial control, building automation, and safety-critical systems. It provides rapid switching and high safety integrity, ensuring reliable operation in demanding environments.
Technical Specifications
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Model Number: 51120841-101
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Product Type: Single SPDT Control Relay / Safety Input Module
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Contact Configuration: SPDT (Single Pole, Double Throw)
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Control/Coil Voltage: 24 VDC
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Contact Rating: 10 A at 250 VAC
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Input Channels: 8 discrete inputs (for safety module variant)
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Safety Integrity Level: SIL3 (IEC 61508 compliant)
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Response Time: ≤10 ms
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Mounting: DIN rail or panel
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Dimensions: 13.5 cm × 7.1 cm × 2 cm
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Weight: 0.2–1.07 kg depending on variant
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Warranty: 12 months
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Country of Origin: USA
Key Features
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High Safety Integrity: SIL3 certification ensures suitability for safety-critical industrial applications
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Fast Switching: ≤10 ms response time supports real-time control tasks
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Versatile Use: Configurable for either relay control or safety input monitoring
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Compact Design: Space-efficient form factor for dense control cabinet layouts
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Reliable Performance: Robust electrical isolation and fault tolerance for harsh industrial conditions
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Easy Integration: Compatible with Honeywell Experion and FSC systems
Applications
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Industrial process control
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Building automation systems
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Safety-critical monitoring
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DCS and control panel integration
FAQ
Q: Is the module suitable for safety-critical applications?
A: Yes, 51120841-101 is SIL3 certified and designed for high-integrity safety systems.
Q: What is the response time of the relay?
A: The module responds in ≤10 ms, ideal for real-time control scenarios.
Q: Can it be mounted in compact control cabinets?
A: Yes, its space-efficient design fits DIN rail or panel installations.
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
Spatial Computing in Industrial Automation: Elevating PLC and DCS Operations with AR and VR
Industry 4.0 integrates digital intelligence into field operations, transforming factory automation landscapes worldwide. Spatial technologies—specifically Augmented Reality (AR) and Virtual Reality (VR)—redefine how engineers interact with industrial control systems. By bridging computer-generated CAD models with real-time operational technology (OT) data, immersive displays enable intuitive monitoring, rapid diagnostics, and safer maintenance across complex processing facilities.
Master Acceptance Testing: Understanding FAT and SAT in Industrial Control Systems
Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) serve as critical quality assurance gateways in complex industrial control systems. Both procedures verify that programmable logic controllers (PLCs), distributed control systems (DCS), and associated field devices meet strict functional specifications. However, executing these tests effectively requires clear delineation between off-site staging and final field commissioning.
Industrial Networking Essentials: Demystifying Hubs, Switches, and Routers in Control Systems
Industrial automation relies heavily on robust networking infrastructure to connect programmable logic controllers (PLCs), distributed control systems (DCS), and human-machine interfaces (HMIs). Modern factory automation environments generate vast amounts of real-time operational data across deterministic networks. Understanding the structural differences between hubs, switches, and routers ensures optimal traffic segmentation, minimizes latency, and maintains high network availability.