The GE IS200TDBTH4A IS200TDBTH4AAA contact relay board switches discrete outputs for Mark VI systems. This board controls actuators, solenoids, and indicator lamps directly. You will find this unit inside a standard Speedtronic turbine control rack. It provides reliable dry contact switching for field devices.
Technical Specifications
The table below lists accurate parameters for this contact relay board.
| Parameter | Specification |
|---|---|
| Full Product Model | GE IS200TDBTH4A IS200TDBTH4AAA |
| Category | Contact Relay Board |
| Width | 3.5 inches (88.9 mm) |
| Height | 9.5 inches (241.3 mm) |
| Weight | 0.61 kg (1.34 lbs) |
| Onboard Relays | 8 independent electromechanical relays |
| Connector Interfaces | 2 backplane connectors (P1, P2), 1 terminal block |
| Energy Storage | 1 capacitor bank (1000 µF total) |
| Coil Voltage | 24 V DC per relay |
| Contact Rating | 2 A at 30 V DC or 250 V AC |
| Operating Temperature | -30°C to +65°C |
Physical Layout and Component Arrangement
The GE IS200TDBTH4A IS200TDBTH4AAA contact relay board uses a rigid epoxy substrate. Eight electromechanical relays sit in two rows of four. Each relay features a clear plastic cover for visual inspection. One large capacitor bank stores energy for coil actuation. Two backplane connectors anchor this board securely into the Mark VI rack. A terminal block provides convenient field wiring access.
Functional Features and Integration
This relay board isolates control circuits from high-power field devices. Each relay switches independently without affecting the others. The GE IS200TDBTH4A IS200TDBTH4AAA also includes flyback diodes for coil protection. Consequently, it extends relay life and reduces electrical noise.
Installation and Safe Handling
Always disconnect field power before wiring the terminal block. Hold the GE IS200TDBTH4A IS200TDBTH4AAA firmly by its non-conductive edges. Push the board straight down until both backplane connectors lock. Then route field wires through the terminal block openings. After installation, test each relay channel from the Mark VI software interface.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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