E43B030 - 30Amp Circuit Breaker


- 30 Amp
- 18k @ 480VAC; 25k @ 240VAC
- 3 Pole
Purchase Options: New Surplus
E43B030 - 30Amp Circuit Breaker Description
E43B030 - 30Amp Circuit Breaker
The E43B030 is a 30 Amp, 3-pole molded case circuit breaker designed for use in compatible electrical distribution systems requiring a Type E43 breaker. Built for commercial and industrial applications, this bolt-on circuit breaker helps provide protection against overloads and short circuits within its rated capacity while maintaining the form, fit, and function needed for existing installations.
Whether you're replacing a breaker during routine maintenance, restoring equipment to service, or keeping spare components on hand for critical systems, the E43B030 offers a practical solution for applications that call for a 30 Amp, three-pole breaker. Its compact design allows it to fit into compatible assemblies while supporting dependable operation in environments with ambient temperatures up to 40°C.
Key Features and Benefits
- 30 Amp current rating
- 3-pole configuration for three-phase electrical systems
- Type E43 molded case circuit breaker
- Bolt-on mounting design
- Includes load-side terminals
- HACR rated for qualifying HVAC and refrigeration applications
- Rated for operation in 40°C ambient environments
- Helps protect electrical circuits from overloads and short circuits
- Designed to provide form, fit, and functional compatibility in existing installations
- Built to last for continued service in commercial and industrial electrical systems
Technical Specifications
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Part Number: E43B030
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Type: E43
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Circuit Breaker Style: Molded Case Circuit Breaker
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Amperage Rating: 30 Amps
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Poles: 3
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Mounting Type: Bolt-On
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A.I.C. Rating: 25kA @ 240VAC; 18kA @ 480VAC
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HACR Rated: Yes
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Ambient Temperature Rating: 40°C
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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 × 6.35"H × 3.92"D
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Approximate Shipping Weight: 5.38 lbs.
Material Compliance and Certifications
- HACR (Heating, Air Conditioning, and Refrigeration) Rated
- Designed and manufactured for use in compatible electrical distribution equipment within published ratings and specifications
- Intended for installation and operation in accordance with applicable electrical codes, standards, and equipment requirements
Where It Works Best
The E43B030 is commonly used in commercial, industrial, and institutional electrical systems where a compatible 30 Amp Type E43 molded case circuit breaker is required. Typical applications include:
- Electrical distribution panels
- Commercial facilities
- Manufacturing and processing environments
- HVAC equipment and support systems
- Refrigeration applications
- Building maintenance and repair projects
- Facility infrastructure upgrades and component replacement programs
When maintaining existing power distribution equipment, selecting a breaker with the proper ratings and compatibility is essential. The E43B030 provides the characteristics needed for installations requiring a Type E43 30 Amp 3-pole molded case circuit breaker.
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:30
- 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
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).

