THLC434300WL - 300Amp Circuit Breaker
- 300 Amp
- 150k @ 480VAC; 200k @ 240VAC
- 3 Pole
Purchase Options:
THLC434300WL - 300Amp Circuit Breaker Description
THLC434300WL - 300 Amp Circuit Breaker
The THLC434300WL is a 300-amp, 3-pole current-limiting circuit breaker designed for use in your electrical distribution systems that require dependable overcurrent protection and high interrupting capacity. Featuring a non-interchangeable trip unit and an unfused current-limiting design, this breaker helps you to protect conductors and connected equipment from overloads and short-circuit conditions while supporting system coordination requirements. Built for long service life in commercial and industrial environments, the THLC434300WL includes both line-side and load-side lugs for straightforward installation and secure conductor termination. With interrupting ratings of 150kA at 480VAC and 200kA at 240VAC, it is well suited for applications where a high available fault current is present.
Key Features and Benefits
- 300 Amp continuous current rating
- 3-pole configuration for three-phase electrical systems
- Type THLC4 current limiting circuit breaker
- Unfused design reduces component count within the circuit
- Non-interchangeable trip unit helps maintain original protection settings
- High interrupting capacity rated at 150kA @ 480VAC and 200kA @ 240VAC
- Includes both line-side and load-side lugs
- Designed for commercial, industrial, and institutional power distribution applications
- Built to provide long-term service in demanding electrical environments
- Suitable as a form, fit, and functional replacement where THLC4 specifications are required
Technical Specifications
- Part Number: THLC434300WL
- Type: THLC4
- Poles: 3
- Amperes: 300A
- Voltage / A.I.C. Rating: 150kA @ 480VAC; 200kA @ 240VAC
- Trip Unit: Non-Interchangeable
- Circuit Breaker Design: Current Limiting, Unfused
- Included Accessories: Line-Side and Load-Side Lugs
- Height: 13.06 in.
- Width: 5.72 in.
- Depth: 4.88 in.
Material Compliance and Certifications
- Industry Standards: This circuit breaker is manufactured for use in electrical power distribution systems and is intended to meet applicable industry standards associated with its original design and ratings. Users should verify installation requirements, local code compliance, and application suitability with qualified electrical professionals before installation.
Where It Works Best
- The THLC434300WL is commonly used in commercial buildings, manufacturing facilities, institutional campuses, and other electrical distribution systems that require a 300A, 3-pole, current-limiting circuit breaker. Its high interrupting ratings make it particularly suitable for installations with elevated available fault current levels. This breaker is often selected for switchboards, panelboards, and distribution equipment requiring compatibility with Type THLC4 specifications and a non-interchangeable trip configuration.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
GE®, and ABB® are registered trademarks of General Electric Company and ABB Ltd., respectively. Products sold are surplus, used, or refurbished and are NOT supplied by General Electric Company or ABB Ltd., or their affiliates.
Specifications
- Width:5.72
- Height:13.06
- Depth:4.88
- Poles:3
- Amperes:300
- A.I.C. Rating & Volts:150k @ 480VAC; 200k @ 240VAC
- Type:THLC4
- Approx Dimensions:5.72"W x 13.06"L x 4.88"D
- Additional Notes:Unfused, Current Limiting Circuit Breaker with Non-Interchangeable Trip Unit. Includes Line and Load-Side Lugs
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE shipping on breaker orders over $100 and all other items with orders over $500.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).