Description

GE IS420YDOAS1B – Mark VIe Discrete Relay Output I/O Pack

Product Overview

IS420YDOAS1B is a discrete relay output I/O pack built for the GE Mark VIe turbine and machinery control platform. It receives digital control commands over IONet Ethernet and switches dry‑contact relay outputs to operate solenoid valves, contactors and trip relays. This distributed I/O module forms the critical link between turbine safety logic and field actuation devices in power generation control racks.

Technical Specifications

• Brand: GE
• Model: IS420YDOAS1B
• Warranty: One Year
• Condition: 100% New & Original
• Output Type: Form‑C dry relay contacts
• Communication: IONet dual‑port Ethernet
• Operating Temp: ‑40 °C ~ +70 °C
• Mounting: DIN‑rail terminal base installation

Application Scenarios

• Gas Turbine Power Unit: Fuel valve and trip solenoid control for turbine protection logic
• Steam Turbine Control Cabinet: Discrete output for lube oil pump and drain valve sequencing
• Combined‑Cycle Power Plant: Safety relay actuation for emergency shutdown sequences
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