Description

GE IS220PDOAH1B Discrete Output I/O Pack

Technical Specifications

• Product Model: IS220PDOAH1B
• Brand: GE Vernova
• Warranty: One Year
• Input Voltage: 28 V DC field wetting power, backplane logic power
• Operating Temperature: 0 °C ~ +60 °C
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Relay output action <10 ms
• Protection Class: IP20 Mark VIe I/O pack module
• Accuracy Class: Turbine‑control discrete‑output grade
• Output Frequency: Not applicable
• Rated Current: 12‑channel relay discrete outputs, status feedback per channel
• Output Type: Form‑C relay contact outputs
• Diagnostics: Channel‑level circuit‑fault detection, module self‑test, LED channel‑status indicators
• System Compatibility: GE Mark VIe / Mark VIeS turbine‑control system
• Certifications: CE, cULus
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 0.44 kg
• Dimensions: Standard Mark VIe I/O pack mechanical size
• 

Product Overview

IS220PDOAH1B is discrete relay‑output I/O pack for GE Mark VIe turbine‑control platform. It provides 12 independent Form‑C relay outputs to drive plant interlocks, trip circuits, solenoid valves and alarm‑annunciation devices. Each output channel carries circuit‑status feedback back to controller logic for fault diagnosis. The module connects to corresponding terminal board for field‑wiring termination. Widely used in gas‑turbine, steam‑turbine and combined‑cycle power‑plant control systems. End‑of‑production original part; available as refurbished / new‑old‑stock spare parts for power‑plant turbine‑control‑system maintenance.

Application Notes

‑ Must mate with matching Mark VIe series terminal board for field wiring. ‑ Verify relay‑contact load rating against actual field‑device requirements. ‑ Observe strict ESD anti‑static handling during module replacement. ‑ Not hot‑swappable under TMR safety‑system running conditions. ‑ Typical deployment: gas‑steam turbine power‑plants, combined‑cycle plant Mark VIe spare‑part stocking.