WOODWARD 5441-637 Product Detailed Description

Product Model: WOODWARD 5441-637

Brand: WOODWARD (Woodward)

Product Type: Relay Interface Module for NetCon 5000 / MicroNet Series

Generation Time: 2026-05-18 11:21:10

I. Product Overview

WOODWARD 5441-637 is an isolation-type relay output interface module for the NetCon 5000 and MicroNet control systems. It serves as a signal amplifier and isolation unit in the control system, converting the weak electrical control signals from the controller into strong electrical switch signals that can drive on-site actuators, enabling direct control of devices such as solenoids, motors, and indicator lights. This module is a discontinued model, and the market circulation is mainly in the form of refurbished / spare parts. 

II. Core Functional Characteristics

Multi-channel Isolated Output: Provides 8 independent electrical isolation relay output channels.

Power Drive Capability: Each channel supports 5A @ 250V AC / 30V DC resistive load, capable of directly driving most industrial equipment.

Full Isolation Design: Input, output, and power supply are fully isolated, effectively suppressing common-mode interference and protecting the main controller's safety.

Channel Status Indication: Each channel is equipped with an independent LED indicator, displaying the output on/off status in real time, facilitating on-site diagnosis.

Standard Rack Installation: Compatible with NetCon/MicroNet standard 12-slot rack, supports hot swapping, plug-and-play, and convenient maintenance.

Industrial-grade Reliability: Wide temperature, shock-resistant, dust-proof design, suitable for harsh industrial environments such as power plants, petrochemicals, and metallurgy.

III. Technical Specifications

1. Electrical Parameters

Number of Channels: 8 independent isolated relays output

Contact Type: Form A (SPST-NO, single-pole single-throw, normally open)

Contact Capacity: 5A @ 250V AC / 30V DC (resistive load)

Isolation Voltage: 2500 V AC (Input - Output - Power Supply)

Power Supply: 24 VDC ±10%

Status Indication: 8 independent LEDs

I/O Address: Automatically assigned on the backplane

2. Physical and Environmental

Dimensions (W×H×D): 229 mm × 178 mm × 45 mm

Weight: Approximately 0.8 kg

Installation: Standard NetCon/MicroNet 12-slot rack (5439-861)

Operating Temperature: -40°C ~ +70°C

Storage Temperature: -55°C ~ +85°C

Humidity: 5% ~ 95% RH (no condensation)

Protection: IP20

3. Product Status

Product Status: Discontinued (Out of Production)

Alternative Models: 5441-413 (32 channels, 5A, in service), 5441-419 (16 channels, 10A, in service)

Comparison within the Series:

5441-413 (32 channels, 5A, NO, in service)

5441-419 (16 channels, 10A, SPDT, in service)

5441-637 (8 channels, 5A, NO, discontinued)

5441-629 (16 channels, 5A, NO, discontinued)

IV. Typical Application Scenarios

Steam Turbine Control: Combined with 505/505E, 723+ controllers, used for main steam valve / regulating valve control, lubricating oil pump start-stop, heater control, alarm signal output.

Industrial Automation: Directly drives solenoid valves, motor starters, contactors, signal lights, etc. in on-site equipment.

Safety Interlock System: Forms interlock circuits for emergency stop (ESD), fault alarms, safety protection, etc.

DCS System I/O Expansion: Provides isolated digital output points for NetCon/MicroNet control systems.

Petrochemical / Power: Anti-surge protection for compressors, pump valve control, burner management, generator grid connection switch.

V. System Configuration and Compatibility

1. Essential Complementary Components

Main Controller: 5435 series (NetCon CPU), 5439-984/986 (505 controller), 5441-635

Power Module: 5439-766 (24VDC system power supply)

Rack: 5439-861 (12-slot standard rack)

I/O Module: 5437 series (AI/AO/DI), 5441 series (relay output) 2. Compatible Systems

Fully compatible: NetCon 5000, MicroNet control system

Partially compatible: WOODWARD 505/505E, 723/723+ controllers

VI. Quality and Service

Origin: USA (WOODWARD original factory)

Warranty: Refurbished / Spare parts provided for 6-12 months warranty

Service: Module testing, fault diagnosis, technical support