E42B020L - 20Amp Circuit Breaker


- 20 Amp
- 18k @ 480VAC; 25k @ 240VAC
- 2 Pole
Purchase Options: Refurbished
E42B020L - 20Amp Circuit Breaker Description
E42B020L - 20Amp Circuit Breaker
When maintaining or servicing an existing electrical distribution system, having the right replacement circuit breaker matters. The E42B020L is a 20 Amp, 2-pole molded case circuit breaker designed to provide overcurrent and short-circuit protection in compatible commercial and industrial applications. Built for use in systems that require a Type E42 circuit breaker, this unit offers the form, fit, and functionality needed to help keep equipment operating as intended.
With interrupting ratings of 25kA at 240VAC and 18kA at 480VAC, the E42B020L is well suited for a variety of electrical distribution applications where matching the original equipment specifications is important. Its molded case construction is designed for long-term service, while the included line and load-side terminals help simplify installation in compatible equipment.
Because this breaker is HACR rated, it can be used in compatible heating, ventilation, air conditioning, and refrigeration systems where those ratings are specified. Whether you're replacing an existing breaker during routine maintenance or restoring a system to its original configuration, this breaker provides a practical solution built to last.
Key Features and Benefits
- 20 Amp current rating for reliable circuit protection
- Two-pole design for compatible multi-phase and branch circuit applications
- Molded case circuit breaker construction
- Type E42 configuration for matching existing equipment requirements
- Interrupting capacity of 25kA at 240VAC
- Interrupting capacity of 18kA at 480VAC
- HACR rated for compatible HVAC and refrigeration systems
- Includes line and load-side terminals
- Designed for operation in ambient temperatures up to 40°C (104°F)
- Supports form, fit, and functional replacement requirements
- Compact footprint for installations where space may be limited
- Built to last in demanding commercial and industrial environments
Technical Specifications
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Part Number: E42B020L
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Type: E42
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Product Type: Molded Case Circuit Breaker
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Amperage: 20 Amps
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Poles: 2
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A.I.C. Rating: 25kA @ 240VAC; 18kA @ 480VAC
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Temperature Rating: 40°C (104°F)
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HACR Rated: Yes
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Included Accessories: Line and Load-Side Terminals
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Dimensions: 2.0"W x 6.35"H x 3.92"D
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Approximate Shipping Weight: 4.31 lbs.
Material Compliance and Certifications
- The E42B020L is a HACR-rated molded case circuit breaker intended for installation in compatible electrical equipment and distribution systems.
- Installation should be performed by qualified personnel and in accordance with applicable electrical codes, standards, and manufacturer requirements.
Where It Works Best
The E42B020L is commonly used in commercial buildings, industrial facilities, manufacturing environments, HVAC systems, refrigeration equipment, control panels, and electrical distribution systems that require a 20 Amp 2-pole molded case circuit breaker with matching voltage and interrupting ratings. It is particularly useful for maintenance, repair, and replacement projects where preserving the original design characteristics of existing equipment is a priority.
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:2.0
- Height:6.35
- Depth:3.92
- Poles:2
- Amperes:20
- A.I.C. Rating & Volts:18k @ 480VAC; 25k @ 240VAC
- Type:E42
- Approx Dimensions:2.00"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
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).

