1661D89G02
May 20, 2026

1661D89G02

1661D89G02 Brand: Westinghouse (Emerson Ovation) Series: WDPF DCS Model: 1661D89G02 Type: Multibus Power Supply Module (DPU PWR SUPPLY) Alias: WDPF System Power Supply, MMI P/S Module, 1661D89G02 Power Unit

Description

Basic Information

  • Manufacturer: Westinghouse (now Emerson Automation Solutions)

  • Origin: USA

  • Function: Central power supply for WDPF DCS cabinets; provides regulated DC power to multibus backplane, I/O modules, and controller cards.

  • Compatible Chassis: 1660D07G01 CAMAC Crate

  • Mounting: 19” rack-mount, slide-in unit

  • Status: Legacy, in stock (new / remanufactured / repair available)


Specifications

  • Input Voltage: 120 / 240 VAC, 50/60 Hz

  • Output Voltages: +5 VDC, ±12 VDC, +24 VDC (multibus standard)

  • Power Rating: ~400 W

  • Cooling: Internal fan cooled

  • Operating Temp: 0–50°C

  • Humidity: 5–95% RH, non-condensing

  • Weight: ~18.7 lbs (8.5 kg)

  • Dimensions: 16.00 × 5.00 × 12.00 in (approx.)


Key Features

  • Multibus compatible: Designed for WDPF multibus architecture, stable power distribution.

  • Integrated protection: Over-voltage, over-current, short-circuit protection.

  • Hot-swap capable: Can be replaced without shutting down the system.

  • Status indicators: Front-panel LEDs for AC input, DC outputs, and fault alarm.

  • Robust construction: Heavy-duty metal enclosure for industrial 24/7 operation.

  • Revision upgrade: G02 is an enhanced revision of 1661D89G01 with improved reliability and component upgrades.


Application Fields

  • Power Generation: Fossil power plants, combined-cycle plants (WDPF DCS).

  • Process Industries: Petrochemical, refining, gas processing.

  • Heavy Industry: Pulp & paper, metallurgy, water treatment.

  • Legacy System Maintenance: Spare power supply for existing WDPF installations.


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