Products Description
Emerson 1661D89G05 Ovation MMI Power Supply Module

Technical Specifications
Model:1661D89G05
Brand:Emerson
Product Type:MMI Power Supply Module
Applicable System:Emerson Ovation distributed control system, thermal power plant DCS MMI operator cabinet
Input Voltage:115V AC,50/60Hz
Output Voltage:Multiple channel DC output
Core Component:RT301‑2 power brick,3MSC7,7380A31G01 auxiliary card
Cooling Mode:Convection cooling
Installation:Cabinet internal mounting
Common Revision:Multiple hardware revisions available
Status Indicator:On‑board LED for power status, fault alarm indication
Built‑in Function:Multi‑channel stable DC output, over‑voltage protection, over‑current protection, short‑circuit protection, over‑temperature protection, power‑fault signal feedback, surge suppression filtering
Working Temperature:0℃ ~ +60℃
Storage Temperature:-20℃ ~ +70℃
Protection Class:IP20
Weight:1.44kg

Product Brief:
1661D89G05 is the old‑type MMI dedicated power supply assembly of Emerson Ovation system, 115VAC input variant. It is built with RT301‑2 power brick,3MSC7 and 7380A31G01 auxiliary card. It converts 115VAC input into multi‑channel stable DC power to supply Ovation man‑machine interface operator station and related display components. It integrates complete protection functions including over‑voltage, over‑current, short‑circuit and over‑temperature protection, effectively avoids damage to MMI hardware caused by power‑supply abnormality. It supports power‑fault signal feedback for system status monitoring. LED indicators show power‑on and fault conditions for convenient on‑site inspection. This is EOL discontinued spare part,widely used for maintenance and renovation of thermal power plant Ovation DCS system. Please confirm MMI hardware configuration and input power condition before purchase. Strict ESD anti‑static protection shall be followed during installation and replacement.