1. Product Overview

• Part Number: 5437-077

• Manufacturer: Woodward, USA

• Product Type: 505 Series DC Power Supply Module

• Matching System: Woodward 505 / 505E / 505H Turbine Governor System

• Function: Provides regulated 24 VDC power to 505 governor, I/O modules, and field devices; ensures stable power for turbine control, safety trip, and communication systems in power generation and industrial applications.

2. General Specifications

• Input Voltage: 88–132 VAC (50/60 Hz)

• Output Voltage: 24 VDC ±1%, regulated

• Output Current: 5 A continuous

• Mounting: Panel mount / DIN rail optional

• Protection Class: IP20

• Operating Temperature: -40 ℃ to +70 ℃

• Storage Temperature: -45 ℃ to +85 ℃

• Humidity: 5%–95% RH, non-condensing

• Vibration: 10–150 Hz, 2G continuous

• Weight: Approx. 0.68 kg (1.5 lbs)

• Certifications: CE, UL, Class 1 Div 2

• Warranty: 12 months

3. Electrical Parameters

• Input: 88–132 VAC, 50/60 Hz, single-phase

• Output: 24 VDC / 5 A, isolated

• Efficiency: ≥85% at full load

• Ripple & Noise: ≤50 mVpp

• Overvoltage Protection: 28 VDC crowbar

• Overcurrent Protection: Electronic current limiting

• Short-Circuit Protection: Auto-recovery

4. Key Features

• Isolated 24 VDC output for 505 governor and I/O modules

• Wide AC input range, adapts to unstable plant power

• High efficiency, low heat generation for cabinet reliability

• Built-in overvoltage/overcurrent/short-circuit protection

• Compact design, easy installation in control panels

• Compatible with Woodward 505 series and third-party 24 VDC devices

• Rugged construction for harsh power/industrial environments

5. Typical Applications

• Power supply for Woodward 505 / 505E / 505H turbine governors

• 24 VDC power for relay I/O modules (5437-051, 5437-027)

• Field sensors, transmitters, and solenoid valves in turbine systems

• Generator set control panels and ESD safety systems

• Petrochemical, power plant, and offshore platform control cabinets