E43B050 - 50Amp Circuit Breaker
- 50 Amp
- 18k @ 480VAC; 25k @ 240VAC
- 3 Pole
Purchase Options: New Surplus
E43B050 - 50Amp Circuit Breaker Description
E43B050 - 50Amp Circuit Breaker
When maintaining or repairing an existing electrical system, finding the right circuit breaker is essential. The E43B050 50 Amp 3-Pole Molded Case Circuit Breaker is designed to provide the form, fit, and function needed for compatible electrical distribution equipment while helping protect circuits from overloads and short circuits.
With a 50-amp rating, 3-pole configuration, and bolt-on design, this Type E43 breaker is well suited for a wide range of commercial and industrial applications. Its compact footprint allows it to fit where compatible E43 breakers are required, making it a practical choice for facility maintenance teams, electrical contractors, and industrial operations focused on keeping existing systems running efficiently.
Whether you're servicing a manufacturing facility, commercial building, warehouse, or mechanical room, the E43B050 delivers the ratings and configuration needed for a dependable replacement solution. Built to last and engineered for use in compatible legacy systems, it helps support continued operation without requiring changes to existing equipment layouts.
Key Features and Benefits
- 50 Amp current rating for compatible electrical systems
- 3-pole design for three-phase power distribution applications
- Type E43 molded case circuit breaker
- Bolt-on mounting configuration
- Includes 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
- Compact molded case construction for commercial and industrial environments
- Built to last for ongoing maintenance and replacement needs
Technical Specifications
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Part Number: E43B050
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Type: E43
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Circuit Breaker Type: Molded Case Circuit Breaker
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Amperage Rating: 50 Amps
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Poles: 3
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Mounting Style: Bolt-On
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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: 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 E43B050 is commonly used in commercial and industrial environments requiring a compatible Type E43 molded case circuit breaker for maintenance, repair, or replacement applications. Typical uses include:
- Commercial office buildings
- Manufacturing facilities
- Industrial plants
- HVAC and refrigeration systems
- Warehouses and distribution centers
- Educational and institutional facilities
- Electrical distribution panels and panelboards
- Mechanical equipment rooms
- Facility maintenance projects involving compatible legacy electrical equipment
For electrical professionals servicing existing systems, the E43B050 provides the amperage rating, interrupting capacity, pole configuration, and bolt-on mounting design needed to support the continued operation of compatible 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:50
- 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. Bolt-On. Includes 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).
