HEB2B045B - 45Amp Circuit Breaker
- 45 Amp
- 65k @ 480VAC; 100k @ 240VAC
- 2 Pole
Purchase Options:
HEB2B045B - 45Amp Circuit Breaker Description
HEB2B045B - 45Amp Circuit Breaker
The Siemens HEB2B045B is a 45 Amp, 2-pole molded case circuit breaker designed for compatible HEB (EG) frame low-voltage panelboards. When you're replacing an existing breaker, matching the original specifications is the priority — including the frame style, pole configuration, amperage, voltage rating, and terminal arrangement. This model features a thermal-magnetic trip unit to help protect your circuits from overloads and short circuits while fitting the requirements of compatible Siemens equipment.
Key Features and Benefits
- Siemens HEB (EG Frame) molded case circuit breaker
- 45 Amp current rating
- 2-pole configuration
- Thermal-magnetic trip unit
- Rated for 480 VAC applications
- Interrupting ratings:
- 65kAIC @ 480 VAC
- 25kAIC @ 600Y/347 VAC
- Load-side lugs included (TA1EG10)
- Accepts 8 AWG to 1/0 AWG copper or aluminum conductors
- Designed to match compatible HEB frame panelboard installations
- UL Listed
- Built to last for continued use in existing electrical equipment
Technical Specifications
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Manufacturer: Siemens
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Catalog Number: HEB2B045B
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Product Type: Molded Case Circuit Breaker
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Frame: HEB (EG Frame)
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Poles: 2
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Current Rating: 45 Amps
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Voltage Rating: 480 VAC
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Trip Unit: Thermal-Magnetic
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Interrupting Rating:
65kAIC @ 480 VAC
25kAIC @ 600Y/347 VAC -
Terminal Configuration: Load-side lugs (TA1EG10)
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Wire Range: 8 AWG to 1/0 AWG Copper/Aluminum
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Dimensions: 2" W × 5.5" H × 3" D
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Weight: 1.257 lb
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Country of Origin: Dominican Republic
Material Compliance and Certifications
- UL Listed
- Compatible with copper and aluminum conductors
- ECCN: EAR99
- Commodity Code: 8536200040
- WEEE Category 5
- Not classified as dangerous goods
- RoHS compliance information not available
Where It Works Best
The Siemens HEB2B045B is commonly used in commercial buildings, industrial facilities, and institutional electrical distribution systems that use compatible HEB (EG) frame panelboards. It is a good fit for repair and maintenance work where the existing breaker needs to be matched by frame type, pole count, electrical ratings, and connection style. Keeping those specifications consistent helps maintain the original panelboard configuration and allows compatible equipment to remain in service.
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:5.5
- Depth:3.0
- Poles:2
- Amperes:45
- A.I.C. Rating & Volts:65k @ 480VAC; 100k @ 240VAC
- Type:HEB
- Approx Dimensions:2.00"W x 5.50"L x 3.00"D
- Additional Notes:40°C, HACR rated, Molded Case Circuit Breaker, Panelboard Mount. Includes Load-Side Terminals
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.
If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.
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).