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- Woodward
- 5441-691
- Relay Field Terminal Module
- USA
- 150 × 110 × 40 mm
- 0.45 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
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Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Woodward 5441-691 is an industrial Relay Field Terminal Module designed to interface control signals with field devices safely and reliably. It provides electrical isolation and organized relay connections between a control system and external actuators, alarms, or solenoids. This module is widely used in turbine control, engine management, power generation, and industrial automation systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Woodward |
| Model | 5441-691 |
| Product Type | Relay Field Terminal Module |
| Dimensions | 150 × 110 × 40 mm |
| Weight | 0.45 kg |
| Function | Relay switching and electrical isolation |
| Input Type | Low-voltage control signal |
| Output Type | Relay contact outputs for field devices |
| Mounting Type | Panel or chassis mounted |
| Application | Industrial automation and control systems |
Function and Working Principle
The 5441-691 works as a signal-to-field interface:
- Receives control signals from PLCs or controllers
- Activates internal relay circuits corresponding to inputs
- Provides output to field devices such as actuators, solenoids, or alarms
- Maintains electrical isolation between control and field circuits
- Protects sensitive electronics from voltage spikes or noise
This ensures safe, reliable control of multiple field devices from a centralized control system.
Key Features
- Organized relay output terminals for field connections
- Electrical isolation between control and load sides
- Compact industrial design
- Reliable switching performance
- Suitable for continuous industrial operation
- Easy to integrate into automation systems
Industrial Applications
- Gas and steam turbine control systems
- Diesel and gas engine management
- Power generation plants
- Industrial machinery automation
- Alarm and safety signal distribution
- Distributed control systems (DCS)
Role in Industrial Systems
The 5441-691 plays a crucial role in automation by:
- Converting control signals into physical relay actions
- Protecting control electronics from field-side electrical disturbances
- Simplifying field wiring through terminal organization
- Supporting modular and scalable control architectures
- Enhancing overall system reliability and safety
Installation Notes
- Mount inside a protected control cabinet
- Connect control inputs and relay outputs carefully
- Maintain proper grounding
- Do not exceed relay current and voltage ratings
- Ensure adequate ventilation for heat dissipation
- Installation should be performed by qualified personnel
Advantages
- Reliable relay-based field control
- Electrical isolation for system protection
- Organized terminal layout for easy wiring
- Compact and robust design
- Compatible with multiple industrial systems
- Supports continuous-duty operation
Limitations
- Relay contacts are subject to mechanical wear
- Not a programmable device
- Requires compatible control signals
- Must operate within rated electrical specifications
Conclusion
The Woodward 5441-691 Relay Field Terminal Module is a compact and reliable solution for interfacing control systems with field devices. Its strong isolation, organized terminals, and industrial-grade construction make it ideal for turbine control, engine management, and industrial automation applications.