E43B045L - 45Amp Circuit Breaker
- 45 Amp
- 18k @ 480VAC; 25k @ 240VAC
- 3 Pole
Purchase Options: New Surplus
E43B045L - 45Amp Circuit Breaker Description
E43B045L - 45Amp Circuit Breaker
When you need a compatible replacement breaker for an existing electrical system, the E43B045L 45 Amp 3-Pole Molded Case Circuit Breaker provides the ratings and configuration required to help keep equipment operating as intended. Designed as a Type E43 molded case circuit breaker, this unit is commonly used in commercial and industrial power distribution systems where dependable circuit protection is essential.
One detail that maintenance professionals appreciate is the inclusion of both line and load-side terminals, which can help simplify installation and replacement work. Designed for operation in environments up to 40°C, this breaker is built to last and supports the continued operation of compatible electrical distribution equipment.
Whether you're maintaining a manufacturing facility, commercial building, warehouse, or HVAC system, the E43B045L delivers the form, fit, and functional compatibility needed for many existing installations. Its combination of electrical ratings, compact footprint, and molded case construction makes it a practical choice when replacing a breaker in equipment originally designed for a Type E43 device.
Key Features and Benefits
- 45 Amp current rating for compatible electrical distribution systems
- 3-pole configuration for three-phase applications
- Type E43 molded case circuit breaker
- Molded case design for commercial and industrial environments
- Includes both line and load-side terminals
- HACR rated for qualifying HVAC and refrigeration equipment
- Interrupting capacity of 18kA at 480VAC and 25kA at 240VAC
- Designed for operation in ambient temperatures up to 40°C
- Helps protect circuits from overloads and short-circuit faults
- Form, fit, and functional replacement for compatible equipment
- Built to last in demanding facility environments
Technical Specifications
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Part Number: E43B045L
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Type: E43
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Circuit Breaker Type: Molded Case Circuit Breaker
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Amperage Rating: 45 Amps
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Poles: 3
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A.I.C. Rating: 18kA @ 480VAC; 25kA @ 240VAC
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Temperature Rating: 40°C
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HACR Rated: Yes
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Included Terminals: Line and Load-Side Terminals
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Width: 3.0 in.
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Height: 6.35 in.
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Depth: 3.92 in.
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Dimensions: 3.0"W × 6.35"H × 3.92"D
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Approximate Shipping Weight: 5.38 lbs.
Material Compliance and Certifications
- HACR Rated
- Designed for use in compatible electrical distribution equipment
- Intended for installation in accordance with applicable electrical codes and manufacturer requirements
- Suitable for operation within published voltage and interrupting capacity ratings
Where It Works Best
The E43B045L is commonly used in commercial and industrial facilities that require a compatible Type E43 molded case circuit breaker for maintenance, repair, or replacement projects. Typical applications include:
- Commercial office buildings
- Industrial facilities
- Manufacturing plants
- HVAC and refrigeration systems
- Warehouses and distribution centers
- Educational and institutional facilities
- Electrical distribution panels and panelboards
- Mechanical equipment rooms
- Facility maintenance and retrofit projects involving compatible legacy equipment
For electrical professionals maintaining existing systems, the E43B045L provides the proper amperage, interrupting capacity, pole configuration, and terminal arrangement needed to support the continued operation of compatible electrical equipment.
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.
Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.
Specifications
- Width:3.0
- Height:6.35
- Depth:3.92
- Poles:3
- Amperes:45
- A.I.C. Rating & Volts:18k @ 480VAC; 25k @ 240VAC
- Type:E43
- Approx Dimensions:3.00"W x 6.35"L x 3.92"D
- Additional Notes:40°C, HACR rated, Molded Case Circuit Breaker. Includes Line and load-side terminals.
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
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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).
