5500-577 | Woodward | Relay Output Module MicroNet PLC

Product Overview

The 5500-577 (Model: 5500-577) is an industrial-grade relay output interface module engineered by Woodward for high-reliability control environments. This module acts as a critical bridge between low-level digital control logic and high-power field equipment. It is primarily utilized within Woodward’s MicroNet and digital governor platforms to manage alarm circuits, system interlocks, trip logic, and discrete automation tasks.

Designed for long-term deployment in harsh settings—such as power plant turbine enclosures and marine engine rooms—the 5500-577 (Part Number: 5500-577) provides robust switching capabilities. By utilizing SPDT (Form C) relay architecture, the module ensures versatile wiring options for both normally open and normally closed applications, while its integrated optical isolation protects the main processor from electrical back-EMF and noise.

Detailed Technical Specifications

The 5500-577 module provides the following technical parameters for industrial switching:

• Manufacturer: Woodward (USA)

• Model Number: 5500-577

• Product Type: Relay Output / Control Module

• Output Configuration: SPDT (Form C) Relay Contacts

• Isolation Type: Optical isolation (Controller-to-Field)

• Operating Voltage: 24 V DC Nominal

• Switching Capacity: Optimized for inductive and resistive loads (typically up to 5A at 28V DC or 120V AC, dependent on load type)

• Contact Material: High-durability silver alloy (standard for industrial relays)

• Operating Temperature: -40 °C to +70 °C

• Storage Temperature: -55 °C to +105 °C

• Shock/Vibration: Industrial rated for engine-mounted or cabinet-mounted environments

• Weight: 0.3 kg (0.66 lbs)

• Mounting: Compatible with Woodward MicroNet chassis and standard control racks