E43B020 - 20Amp Circuit Breaker
- 20 Amp
- 18k @ 480VAC; 25k @ 240VAC
- 3 Pole
Purchase Options: New Surplus
E43B020 - 20Amp Circuit Breaker Description
E43B020 - 20Amp Circuit Breaker
Finding the right replacement circuit breaker is about more than matching the amp rating—it's about ensuring the breaker fits the existing system and performs as intended. The E43B020 is a 20 Amp, 3-pole molded case circuit breaker designed for applications that require a Type E43 breaker with bolt-on installation. Built for use in commercial and industrial electrical systems, this breaker provides the form, fit, and functional compatibility needed to help keep existing equipment operating safely and efficiently.
With a 25kA interrupting rating at 240VAC and 18kA at 480VAC, the E43B020 is designed to help protect circuits from overloads and short circuits within its specified ratings. Its 3-pole configuration makes it suitable for three-phase power systems commonly found in manufacturing facilities, commercial buildings, mechanical equipment rooms, and industrial operations. Because it is HACR rated, it can also be used in qualifying heating, air conditioning, and refrigeration applications where dependable circuit protection is required.
Whether you're replacing a failed breaker during a repair, maintaining critical facility equipment, or sourcing components for an ongoing maintenance program, the E43B020 20 Amp 3-Pole Circuit Breaker provides the ratings, configuration, and compatibility needed for a straightforward replacement in qualifying electrical systems.
Key Features and Benefits
- 20 Amp current rating
- 3-pole configuration for three-phase electrical systems
- Type E43 molded case circuit breaker
- Bolt-on mounting design
- HACR rated for qualifying HVAC and refrigeration applications
- Includes load-side terminals
- Interrupting capacity of 25kA at 240VAC
- Interrupting capacity of 18kA at 480VAC
- Designed for operation in 40°C ambient conditions
- Supports form, fit, and functional replacement requirements
- Suitable for commercial, industrial, and facility maintenance applications
- Helps maintain compatibility with existing electrical equipment
- Built to last in demanding electrical environments
Technical Specifications
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Part Number: E43B020
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Type: E43
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Product Type: Molded Case Circuit Breaker
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Amperage Rating: 20 Amps
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Poles: 3
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Mounting Style: Bolt-On
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A.I.C. Rating: 25kA @ 240VAC; 18kA @ 480VAC
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Operating Temperature: 40°C
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HACR Rated: Yes
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Included Accessories: 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 x 6.35"H x 3.92"D
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Approximate Shipping Weight: 5.38 lbs
Material Compliance and Certifications
- The E43B020 molded case circuit breaker is HACR rated and designed for installation and operation within its published electrical ratings.
- Compatibility with the intended panelboard, switchboard, or electrical distribution equipment should be verified before installation.
- Installation, inspection, testing, and maintenance should be performed by qualified personnel and in accordance with applicable electrical codes, standards, and site requirements.
Where It Works Best
The E43B020 is commonly used in a variety of commercial and industrial electrical applications, including:
- Three-phase power distribution systems
- Commercial office buildings
- Manufacturing facilities
- HVAC and refrigeration equipment
- Electrical panelboards and switchboards
- Maintenance and repair projects
- Facility infrastructure support and upkeep
- Replacement applications requiring a compatible Type E43 breaker
- Branch circuit protection in compatible electrical systems
Selecting the correct replacement breaker helps preserve the original design characteristics of an electrical system. The E43B020 20 Amp circuit breaker is designed to provide a compatible replacement solution for applications requiring a 3-pole Type E43 molded case circuit breaker, helping maintain equipment functionality while matching the electrical ratings and physical configuration specified for the original installation.
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:20
- 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).
