BQ3B045 - 45Amp Circuit Breaker
- 45 Amp
- 10k @ 240VAC
- 3 Pole
Purchase Options: Brand New
BQ3B045 - 45Amp Circuit Breaker Description
BQ3B045 - 45Amp Circuit Breaker
Keep your three-phase electrical systems protected with the Siemens BQ3B045. This 45-amp, 3-pole molded case circuit breaker is part of Siemens’ trusted Type BQ family and provides straightforward, reliable branch circuit protection. With a common-trip design, all three poles disconnect simultaneously during an overload or short circuit, keeping your equipment safe and your system running smoothly. Rated for 240V and a 10 kA interrupting capacity (10kAIC), it slots easily into compatible Siemens panelboards, and the included load-side lugs make installation a snap.
Key Features and Benefits
- 45 amp, 3-pole molded case circuit breaker
- Common-trip design disconnects all poles together
- Rated for 240VAC electrical systems
- 10 kA interrupting capacity (10kAIC)
- Bolt-on installation ensures a secure panel connection
- Load-side lugs included for easy wiring
- Designed for branch circuit protection in commercial and industrial setups
- Compatible with Siemens Type BQ panelboards
Technical Specifications
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Manufacturer: Siemens
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Catalog Number: BQ3B045
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Number of Poles: 3
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Voltage Rating: 240 VAC
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Amperage Rating: 45 Amps
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Interrupting Rating: 10 kAIC
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Trip Type: Common Trip
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Mounting Type: Bolt-On
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Electrical Connection Type: Bolt-On
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Depth: 3 in | Width: 3 in | Height: 4 in
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Net Weight: 1.014 lb
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Country of Origin: Mexico
Material Compliance and Certifications
- UL 489 Listed
- Built to Siemens standards for low-voltage electrical distribution
- Active product lifecycle
Where It Works Best
- The BQ3B045 is perfect for commercial buildings, factories, schools, warehouses, and any environment that needs dependable three-phase branch circuit protection.
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:4.0
- Depth:3.5
- Poles:3
- Amperes:45
- A.I.C. Rating & Volts:10k @ 240VAC
- Type:BQ
- Approx Dimensions:3.00"W x 4.00"L x 3.50"D
- Additional Notes:HACR rated, Bolt-on Molded Case Circuit Breaker, 40°C
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).