I/O modules

Key Technical Specifications

This GE IS200ERGTH1A IS200ERGTH1APR1 board operates from 240V AC single-phase supply. It senses 0.5A ground fault current with high precision. The unit measures 19 cm in length, 13 cm in width, and 4 cm in height. Its total weight equals 0.55 kg without any packaging materials.

The GE IS200ERGTH1A IS200ERGTH1APR1 includes four independent ground detection channels. Additionally, it features one LED indicator array for each channel status. A single 20-pin header connects to the main monitoring system. The board contains 4 current transformers, 2 comparators, 8 diodes, and 14 resistors.

GE IS200ERGTH1A IS200ERGTH1APR1 stores energy using one electrolytic capacitor. This capacitor provides 220 µF at 50V rating for relay hold-up time. Consequently, the board maintains fault indication during 100 millisecond power interruptions.

Design and Integration

Both the GE IS200ERGTH1A and GE IS200ERGTH1APR1 versions share identical detection circuitry. These boards use four-layer PCB construction with isolated ground planes for noise immunity. Therefore, the GE IS200ERGTH1A IS200ERGTH1APR1 operates reliably from -10°C to +55°C ambient temperature.

For installation, you need M3 screws for the four corner mounting holes. The board draws 40 mA typical current from the 240V AC supply. During ground fault detection, it consumes 60 mA maximum. We recommend using a 0.5A slow-blow fuse for circuit protection.

Practical Application

This ground detector board monitors ungrounded DC and AC systems for insulation faults. It triggers an alarm when any channel detects current leakage to earth. The GE IS200ERGTH1A IS200ERGTH1APR1 also provides latching outputs for each fault channel. Therefore, it helps operators identify ground faults before system shutdown occurs.

Details