ABB / General ElectricTHLC136030WL
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ABB / General Electric THLC134030WL Molded Case Circuit Breaker
- 30A
- 3 Pole
- Unit Mount
ABB / General Electric
THLC134030WL
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THLC134030WL
Quantity
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ABB / General Electric THLC134030WL - 30A 3 Pole Molded Case Circuit Breaker
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Description
Providing standalone circuit protection, the GE THLC134030WL is a 3-pole, 30A current-limiting molded case circuit breaker. It features a fixed thermal-magnetic trip unit for reliable long-time and instantaneous defense against overloads. This unit-mount breaker installs into enclosures, switchboards, and motor control centers. It comes factory-equipped with TCAL12 line and load lugs, and serves as a substitute for the THLC136030WL.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THLC134030WL |
| Series | THLC |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC |
| 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 |
|---|---|
| Accessories | Line and Load Lugs (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, Non-Interchangeable Trip |
| Special Features | Current Limiting |
Product FAQs
6 answersWhat does the WL suffix in the THLC134030WL catalog number indicate?
The WL suffix designates that the circuit breaker comes factory-equipped with both line and load lugs. If you order the base THLC134030 without this suffix, the breaker typically ships without lugs, requiring them to be sourced and installed separately.
Which enclosures and panelboards are compatible with the THLC134030WL?
This unit-mount breaker is designed for bolt-on installation in GE A-Series panelboards, switchboards, and motor control centers that accept the THLC1 frame. It is a feed-thru breaker and does not snap into standard residential load centers.
Can the THLC134030WL be reverse fed?
Yes, GE THLC1 frame breakers can be reverse fed. However, when back-feeding this breaker in a panelboard, you must install a mechanical retaining clip or hold-down screw to secure it to the panel per NEC requirements.
Are the internal accessories for the THLC1 frame interchangeable with other GE breakers?
Yes, the THLC1 frame shares common field-installable internal accessories with the GE TED and THED circuit breaker families. This includes auxiliary switches, shunt trips, bell alarms, and undervoltage releases.
How does the THLC134030WL achieve a 200kAIC rating in a compact frame?
The THLC1 frame is a current-limiting molded case circuit breaker. It uses specialized internal contact designs to extinguish arcs rapidly. This limits the peak let-through current, allowing it to safely interrupt up to 200,000 amps at 480VAC without requiring a larger physical footprint.
Why specify a current-limiting breaker like the THLC134030WL for industrial panels?
Current-limiting breakers are required in systems with extremely high available fault currents. By clearing a short circuit in less than half a cycle, they prevent downstream components from being exposed to the full mechanical and thermal stress of a fault, protecting sensitive equipment and reducing arc flash hazards.
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