ABB / General ElectricTHLC134100
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ABB / General Electric THLC134090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- Bolt-On
ABB / General Electric
THLC134090
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THLC134090
Quantity
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ABB / General Electric THLC134090 - 90A 3 Pole Molded Case Circuit Breaker
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Description
Part of the Q-Line family, this 90A current-limiting molded case circuit breaker is built for demanding industrial applications. The 3-pole device features a fixed thermal-magnetic trip unit with long-time and instantaneous (LI) protection. Designed for secure bolt-on installation, it mounts into GE A-Series panelboards, switchboards, and motor control centers.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THLC134090-R |
| Series | THLC |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC |
| Frame Type | THLC |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 6 AWG - 2/0 AWG (Cu), 4 AWG - 2/0 AWG (Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 6 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Mounting Hardware, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs (TCAL12A) |
| Standards | UL 489, CSA C22.2 No. 5, NEMA AB 1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, High Interrupting Capacity, HACR Rated, Non-Interchangeable Trip, Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break |
| Special Features | Current Limiting |
Product FAQs
6 answersWhat type of enclosures or panels accept the THLC134090 breaker?
This breaker is designed for bolt-on installation in GE A-Series panelboards, switchboards, and motor control centers.
What wire sizes are supported by the lugs on the THLC134090?
The included lugs accommodate 6 AWG to 2/0 AWG copper (Cu) wire, or 4 AWG to 2/0 AWG aluminum (Al) wire.
What does it mean that the THLC134090 is a current-limiting breaker?
Current-limiting breakers are engineered to clear short circuits extremely fast, typically in less than a half-cycle. This rapid action restricts the peak let-through current and energy, protecting downstream equipment and allowing the breaker to achieve a 200kAIC rating at 480V.
What frame size does the THLC134090 belong to?
It is part of the GE THLC1 frame family, which has a maximum frame rating of 150 amps. This specific model is configured with a fixed 90-amp trip unit.
Can I adjust the trip settings on the THLC134090?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time (thermal) and instantaneous (magnetic) trip functions are factory-set and non-adjustable.
Why is a high interrupting rating (200kAIC) important for this breaker?
The 200kAIC rating ensures the breaker can safely interrupt massive fault currents up to 200,000 amps at 480V without sustaining catastrophic damage. This is critical for industrial facilities with high available fault currents from large transformers or generators.
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