GE IS230TNPAH2A TNPA Terminal Protection Assembly Module

Technical Specifications

Model: IS230TNPAH2A

Part Number: IS230TNPAH2A，MRP692814

Brand: GE（GE Vernova）

Product Type: TNPA terminal protection assembly module

Matching System: GE Speedtronic Mark VIe, Mark VIeS distributed turbine control system, matched with corresponding I/O packs

Power Supply:24VDC auxiliary power supply, working range 22.5‑28.5VDC

Signal Processing:Supports field digital contact signals and analog sensor signal termination and routing

Circuit Protection:Built‑in surge absorption device, EMI noise suppression filter for each signal channel

Isolation:Group‑by‑group channel galvanic isolation, improve anti‑interference performance of field loop

Connector:Multi‑group D‑sub signal connectors for connecting I/O packs; barrier‑type terminal blocks for field wiring

Redundancy Mode:Support simplex, dual and TMR triple‑modular redundant system configuration

Diagnostic Indicator:Module power and channel fault LED status indicators

Installation:Standard 35 mm DIN‑rail mounting

Operating Temperature:‑40℃ ~ +70℃, non‑condensing

Protection Class:IP20

Weight:0.50kg

Dimension:160mm ×100mm ×40mm

Compatible System:Gas‑steam turbine, generator unit, combined‑cycle power plant control cabinet

Core Function

TNPA terminal protection assembly module for Mark VIe turbine control system. It serves as signal termination and protection front‑end between field on‑site devices and Mark VIe I/O packs. It completes signal wiring transfer, surge suppression and noise filtering for digital and analog field signals. Supports TMR triple‑modular redundant deployment, effectively isolate external surge interference, guarantee stable signal transmission of turbo‑generator unit control loop.

Product Details

The IS230TNPAH2A(MRP692814) is TNPA series terminal protection assembly module for GE Speedtronic Mark VIe distributed turbine control system.

This DIN‑rail mounted terminal module is used for field signal interface conversion. It connects field sensors and switching value equipment through barrier‑type terminal blocks, and transmits signals to various I/O packs via D‑sub connectors. Each channel is equipped with independent surge absorption and EMI suppression components, which can restrain surge pulse and high‑frequency interference introduced by field cables. Group‑by‑group isolation design reduces crosstalk between different signal loops. LED status indicators can reflect module power supply and channel abnormal conditions in real‑time, convenient for on‑site maintenance and fault checking.

Conformal coated circuit board has good vibration‑resistant, moisture‑proof and anti‑interference capability, suitable for complex working conditions of power plant turbine hall. It supports simplex, dual and TMR triple‑modular redundant system architecture, widely used in gas‑steam turbo‑generator unit control cabinets.

It belongs to important signal protection spare‑part for Mark VIe turbine control system, widely used in overhaul and renovation projects of power generation units.

It is important spare hardware for turbine signal loop debugging and defective IS230TNPAH2A module replacement.