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Reliable Signal Termination for Turbine Protection Circuits
The GE IS200TRESH1A IS200TRESH1AAA terminates all emergency trip system wiring in one location. This terminal board belongs to the Mark VI series from General Electric. It interfaces with overspeed sensors and manual trip switches directly. Therefore, it provides a secure connection point for critical safety circuits.
Physical Dimensions and Panel Mounting Details
This trip terminal board measures 20 cm in width, 15 cm in height, and 3.5 cm in depth. The GE IS200TRESH1A IS200TRESH1AAA weighs approximately 0.42 kg, which supports stable DIN rail mounting. Its rugged construction withstands vibration in turbine environments. Consequently, you can mount it directly inside the protection cabinet.
Connector Layout and Component Configuration
The GE IS200TRESH1A IS200TRESH1AAA features two 34-pin ribbon cable headers for rack interface. It also provides sixteen 2-pin screw terminal blocks for field wiring. This board contains sixteen transient suppression diodes for overvoltage protection. Additionally, it includes eight energy storage capacitors for signal filtering.
| Technical Parameter | Specification |
|---|---|
| Full Model Name | GE IS200TRESH1A IS200TRESH1AAA |
| Manufacturer | General Electric (GE) |
| Series | Mark VI / Speedtronic |
| Product Category | Emergency Trip Terminal Board |
| Weight | 0.42 kg (0.93 lbs) |
| Dimensions (W x H x D) | 200 mm x 150 mm x 35 mm |
| Ribbon Cable Headers | 2 x 34-pin |
| Terminal Blocks | 16 x 2-pin (screw type) |
| Transient Suppression Diodes | 16 units |
| Energy Storage Capacitors | 8 units (100 µF each) |
| Total Capacitance | 800 µF |
| Trip Input Voltage | 24 VDC, 48 VDC, 125 VDC |
| Output Relay Rating | 250 VAC / 30 VDC, 5 A |
| Response Time | 10 ms typical |
| Operating Temperature | –25°C to +70°C |
Energy Storage and Protection Performance
The GE IS200TRESH1A IS200TRESH1AAA stores sufficient energy for signal conditioning. Its eight capacitors provide 800 µF of total capacitance. This storage filters out electrical noise from trip circuits. Furthermore, the suppression diodes clamp voltage spikes, preventing false trips and protecting the rack electronics.
Role Within the Mark VI Protection System
You will typically find the GE IS200TRESH1A IS200TRESH1AAA mounted near the turbine emergency trip panel. It connects to the main rack via two shielded ribbon cables. Moreover, this board supports both normally open and normally closed contact inputs. Its sixteen channels accept wiring from overspeed probes, pushbuttons, and relay contacts.
Installation and Wiring Guidelines
Use the GE IS200TRESH1A IS200TRESH1AAA as a direct replacement for older TRES revisions. Always verify the trip circuit voltage before connecting any wires. This terminal board requires no external power supply for passive signal paths. It needs no configuration jumpers or special tools. Simply secure the board with four mounting screws and connect your trip circuit wires to the appropriate terminal blocks.