ABB / General ElectricTHLC136040WL
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ABB / General Electric THLC136050WL Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
ABB / General Electric
THLC136050WL
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THLC136050WL
Quantity
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ABB / General Electric THLC136050WL - 50A 3 Pole Molded Case Circuit Breaker
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Description
Providing exceptional fault protection, the THLC136050WL is a 3-pole, 50A current-limiting MCCB from GE's Q-Line series. It restricts let-through current to safeguard sensitive downstream components in commercial and industrial facilities. This unit-mount breaker installs into compatible GE switchboards, motor control centers, and enclosures. It includes TCAL12 lugs for 14-3 AWG copper wire. Featuring a fixed thermal-magnetic trip, it boasts a massive 200kAIC rating at 480VAC.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THLC136050WL |
| Series | THLC |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC, 50kA @ 600VAC |
| Frame Type | THLC1 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Enclosures, 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 | Line and Load Lugs Included (TCAL12) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| 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 answersWhat does the WL suffix indicate in the THLC136050WL catalog number?
The WL suffix signifies that the circuit breaker is supplied with factory-installed line and load lugs. This specific model includes TCAL12 lugs, which accept 14 to 3 AWG copper or 12 to 1 AWG aluminum conductors.
How does the current-limiting design of the THLC136050WL work?
During a severe short circuit, this current-limiting breaker trips extremely fast to restrict the peak let-through current. This minimizes thermal and mechanical stress on downstream components and can help achieve higher series combination ratings for the electrical system.
What does the LI designation mean for the trip unit?
The LI designation indicates that the thermal-magnetic trip unit provides Long-Time (L) overload protection and Instantaneous (I) short-circuit protection. On the THLC136050WL, both the thermal and magnetic trip points are fixed.
Does the THLC136050WL protect three-phase loads from single-phasing?
Yes. The breaker features an internal common trip mechanism. If an overload or short circuit occurs on any single phase, the mechanism simultaneously opens all three poles to prevent single-phasing damage to downstream equipment.
How is the THLC136050WL installed in electrical equipment?
This is a unit-mount, feed-thru circuit breaker. It bolts directly to the mounting pan or chassis in compatible GE enclosures, switchboards, or motor control centers, and uses wire connections at both the line and load ends rather than plugging into a busbar.
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