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
Redundant Automation Systems: Ensuring Continuous Uptime in Critical Control Infrastructure
System reliability directly determines operational profitability across high stakes process industries. Modern industrial automation platforms must eliminate single points of failure to prevent catastrophic shutdowns. Deploying fault tolerant architecture safeguards complex facilities against unexpected hardware glitches, network disruptions, and maintenance outages.
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.