ABB / General ElectricTHLC134030
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ABB / General Electric THLC134050 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Bolt-On
ABB / General Electric
THLC134050
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THLC134050
Quantity
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ABB / General Electric THLC134050 - 50A 3 Pole Molded Case Circuit Breaker
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Description
Built for demanding commercial environments, the GE THLC134050 is a 3-pole, 50-amp current-limiting MCCB. It mounts seamlessly into GE A-Series lighting panels, Spectra panelboards, and motor control centers. Equipped with a fixed thermal-magnetic trip mechanism, it provides reliable LI protection. The current-limiting design achieves an exceptional 150kAIC interrupting capacity at 480V, minimizing let-through currents to protect sensitive downstream electrical equipment from severe faults.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THLC134050-R |
| Series | THLC |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC |
| Frame Type | THLC1 |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, GE Spectra Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 14-3 AWG (Cu), 12-1 AWG (Al) |
| Max Wire | 3 AWG |
| Min Wire | 14 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, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included (TCAL12) |
| 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, Common Trip, Trip-Free Mechanism |
| Special Features | Current Limiting |
Product FAQs
5 answersWhich panelboards and enclosures are compatible with the THLC134050 circuit breaker?
This breaker is designed for use in GE A-Series panelboards, GE Spectra panelboards, switchboards, and motor control centers that accept THLC1 frame bolt-on breakers.
What does the current limiting designation mean for the THLC134050?
As a current limiting breaker, it is engineered to clear severe electrical faults extremely fast, typically within a half-cycle. This rapid response significantly reduces the let-through energy and peak current, providing enhanced protection for downstream equipment and allowing for its high 200kAIC rating.
How is the THLC134050 installed into GE panelboards?
It utilizes a bolt-on mounting style to secure directly to the panel bus in compatible A-Series and Spectra enclosures. The load side features standard lugs rated for both copper and aluminum conductors.
What does the THLC1 frame designation indicate?
In GE nomenclature, the THLC1 frame identifies a thermal magnetic, high-interrupting, current limiting molded case circuit breaker with a maximum frame size of 150 amps. The THLC134050 specifically is the 50-amp, 480V, 3-pole version within this frame family.
How does the trip mechanism function on the THLC134050?
It utilizes a fixed thermal magnetic trip unit with Long-Time and Instantaneous (LI) functions. The thermal element protects against sustained overloads, while the magnetic element provides instantaneous tripping during short circuits.
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