Introduction
The Woodward 5441‑661 Relay Interface Module is a rugged industrial‑grade relay interface engineered for dependable switching between automation logic outputs and field‑level devices. With robust mechanical relay contacts and reinforced electrical isolation, this module serves as a reliable bridge between control systems and external loads such as solenoids, indicators, and actuators. Built for harsh industrial environments, the 5441‑661 supports long service life, simple integration, and consistent performance in process automation, manufacturing, and energy sector applications.
This module combines strong electrical handling with straightforward mounting flexibility, making it a practical choice for engineers and OEMs who need industrial‑ready relay solutions that safeguard sensitive control electronics while delivering reliable output performance.
Technical Specifications
| Parameter | Specification |
|---|
| Model | 5441‑661 |
| Module Type | Relay Interface Module |
| Manufacturer | Woodward |
| Relay Outputs | Electromechanical relay contacts |
| Contact Rating | Typically up to 5 A per contact |
| Contact Configuration | Normally Open (NO) / Normally Closed (NC) options |
| Number of Channels | Multiple relay outputs |
| Input Logic Voltage | Matches standard industrial control logic (e.g., 24 VDC) |
| Electrical Isolation | Galvanic isolation between control and load circuits |
| Mounting | Panel or rack installation |
| Operating Temperature | Industrial rated range |
| Certifications | Industry standard quality and safety ratings |
Applications
The 5441‑661 Relay Interface Module is widely used in:
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Distributed control systems and PLC output expansion
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Actuator and solenoid control in machinery systems
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Safety interlock signaling for process shutdown logic
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Signal amplification and electrical isolation tasks
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Process automation control panels and switchgear
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Building automation and infrastructure control systems
Its relay outputs provide reliable mechanical switching, making it a versatile choice where solid‑state outputs are not suitable or where galvanic isolation is required.
Advantages
Robust Mechanical Switching
Electromechanical relays manage significant load currents while protecting control electronics.
Flexible Contact Configuration
Available in normally open and normally closed contact arrangements for adaptable control logic.
Galvanic Isolation
Isolation between input logic and output load minimizes risk of electrical interference and ground loops.
Industrial Durability
Designed for continuous operation in harsh industrial settings with high vibration, temperature variation, and electrical noise.
Straightforward System Integration
Panel or rack mounting formats simplify installation and maintenance in control cabinets.
Combining reliability and performance, the 5441‑661 enhances system stability and reduces engineering complexity for relay interface needs.
Technical FAQs
1. What core function does the Woodward 5441‑661 perform?
It provides relay‑based switching between control logic outputs and field devices or loads.
2. What type of relay outputs does it use?
Electromechanical relay contacts.
3. How much current can each contact handle?
Each channel typically supports up to 5 A.
4. Are both NO and NC contacts supported?
Yes — options include normally open and normally closed configurations.
5. What logic voltage does it accept?
Designed to work with standard control logic voltages, commonly 24 VDC.
6. Does the module offer electrical isolation?
Yes, galvanic isolation separates control logic from load circuits.
7. Where is the 5441‑661 typically used?
In control panels, PLC output expansion, actuator interfacing, and safety interlocks.
8. Is it suitable for industrial environments?
Yes, it is built to withstand harsh conditions including vibration and temperature variation.
9. What mounting options are available?
Panel or rack installation within control enclosures.
10. Can it switch diverse device types?
Yes — suitable for solenoids, lamps, actuators, and similar loads within rated limits.
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