ABB / General ElectricTHLC236175
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ABB / General Electric THLC234175 Molded Case Circuit Breaker
- 175A
- 3 Pole
- Bolt-On
ABB / General Electric
THLC234175
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THLC234175
Quantity
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ABB / General Electric THLC234175 - 175A 3 Pole Molded Case Circuit Breaker
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Description
Built for demanding industrial applications, the GE THLC234175 delivers robust current-limiting performance in a 175-amp package. This 3-pole molded case circuit breaker significantly reduces let-through energy, safeguarding sensitive downstream devices from severe fault currents. It mounts into standard GE switchboards and motor control centers using secure bolt-on connections. The unit features a fixed thermal-magnetic trip unit and boasts a massive 200kAIC rating at 480VAC.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THLC234175 |
| Series | THLC |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC |
| Frame Type | THLC2 |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Lugs |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, High Interrupting Capacity, Non-Interchangeable Trip |
| Special Features | Current Limiting |
Product FAQs
6 answersWhat types of equipment are compatible with the THLC234175 circuit breaker?
This THLC2 frame breaker features a bolt-on connection designed specifically for use in GE switchboards and Motor Control Centers. It is not compatible with standard plug-on panelboards or residential load centers.
What is the benefit of the current limiting feature on the THLC234175?
Current limiting breakers like the THLC234175 force fault arcs into specialized arc plates to rapidly counter the driving voltage. This action significantly reduces let-through energy during a short circuit, which helps prevent dielectric breakdown and mechanical damage to downstream devices.
What are the acceptable wire sizes for the THLC234175 terminals?
The standard lugs on this breaker accept copper or aluminum conductors ranging from 4 AWG to 300 kcmil. Ensure all connections are torqued to the manufacturer specifications printed on the breaker faceplate prior to energizing.
How does the fixed thermal magnetic trip unit operate on this breaker?
The trip unit utilizes a bimetallic strip for long-time thermal protection against sustained overloads. For instantaneous protection, a magnetic element detects severe short circuits and immediately actuates the trip mechanism to open the circuit.
Is the THLC234175 rated for high fault current applications?
Yes, it carries a maximum interrupting rating of 200kAIC at 480VAC. This exceptionally high rating allows it to be safely installed in industrial distribution systems with massive available fault currents.
What frame size does the THLC234175 belong to?
It is built on the GE THLC2 frame. Knowing the frame size is critical for verifying physical dimensions, mounting footprint, and hardware compatibility when replacing an existing breaker in a GE switchboard.
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