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SIEMENS Miniature Circuit Breaker: 45 A Amps, 480V AC, 3 Poles - BQD Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSBQD Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS Miniature Circuit Breaker: 45 A Amps, 480V AC, 3 Poles

The Siemens BQD Series Miniature Circuit Breaker (MPN BQD345) is a 45 A, 480V AC, three-pole bolt-on breaker with a 14kA interrupting capacity at 480V AC, designed for use in Siemens P1 Panelboards. 3G Electric…

SKU 3G-OTH-725643

Brand
SIEMENS
Item
Miniature Circuit Breaker: 45 A Amps, 480V AC, 3 Poles
Category
BQD Series, Bolt-On Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
BQD345
Type
Std
AC
480V
Poles
3
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens BQD Series Miniature Circuit Breaker (MPN BQD345) is a 45 A, 480V AC, three-pole bolt-on breaker with a 14kA interrupting capacity at 480V AC, designed for use in Siemens P1 Panelboards. 3G Electric interprets your demand for this standard-type breaker, sources it as an authorized distributor, and supports your procurement across 14 industrial departments — with specialist depth in electrical controls alongside combustion, pumps, and more.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Siemens BQD345 miniature circuit breaker used for?

The Siemens BQD345 is a 45 A, 480V AC, three-pole bolt-on miniature circuit breaker used for overcurrent protection in Siemens P1 Panelboards. It is common in industrial electrical distribution systems where reliable branch circuit protection is required.

What are the specifications of the Siemens BQD345 circuit breaker?

The Siemens BQD345 is rated 45 A at 480V AC, three poles, with a 14kA interrupting capacity at 480V AC. It is a standard-type bolt-on breaker designed for Siemens P1 Panelboards. The manufacturer part number is BQD345.

Where to buy the Siemens BQD345 circuit breaker worldwide?

3G Electric supplies the Siemens BQD345 miniature circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this breaker to your facility. Contact us to order the BQD345 for your electrical panel needs.

How to install the Siemens BQD345 circuit breaker?

Install the Siemens BQD345 by bolting it into a compatible Siemens P1 Panelboard. Ensure the breaker is in the OFF position, align it with the bus bars, and torque the terminal screws to manufacturer specifications. Always de-energize the panel before installation and follow local electrical codes.

Used in

Common applications for SIEMENS
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

SIEMENS Products

3G Electric supplies SIEMENS bqd series, bolt-on siemens miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Miniature Circuit Breaker: 35 A Amps, 480V AC, 2 Poles, Std (MPN BQD235). Key specifications — attr196014: 35 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
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Miniature Circuit Breaker: 35 A Amps, 480V AC, 2 Poles, Std (MPN BQD235). Key specifications — attr196014: 35 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
Miniature Circuit Breaker: 50 A Amps, 480V AC, 2 Poles, Std (MPN BQD250). Key specifications — attr196014: 50 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
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Miniature Circuit Breaker: 50 A Amps, 480V AC, 2 Poles, Std (MPN BQD250). Key specifications — attr196014: 50 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
Miniature Circuit Breaker: 45 A Amps, 480V AC, 2 Poles, Std (MPN BQD245). Key specifications — attr196014: 45 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
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Miniature Circuit Breaker: 45 A Amps, 480V AC, 2 Poles, Std (MPN BQD245). Key specifications — attr196014: 45 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
Miniature Circuit Breaker: 80 A Amps, 480V AC, 2 Poles, Std (MPN BQD280). Key specifications — attr196014: 80 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
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Miniature Circuit Breaker: 80 A Amps, 480V AC, 2 Poles, Std (MPN BQD280). Key specifications — attr196014: 80 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
Miniature Circuit Breaker: 80 A Amps, 277V AC, 1 Poles, Std (MPN BQD180). Key specifications — attr196014: 80 A; attr196015: 277V AC; attr196017: 14kA at 277V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
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Miniature Circuit Breaker: 80 A Amps, 277V AC, 1 Poles, Std (MPN BQD180). Key specifications — attr196014: 80 A; attr196015: 277V AC; attr196017: 14kA at 277V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
Miniature Circuit Breaker: 30 A Amps, 480V AC, 2 Poles, Std (MPN BQD230). Key specifications — attr196014: 30 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
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Miniature Circuit Breaker: 30 A Amps, 480V AC, 2 Poles, Std (MPN BQD230). Key specifications — attr196014: 30 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
Miniature Circuit Breaker: 15 A Amps, 480V AC, 2 Poles, Std (MPN BQD215). Key specifications — attr196014: 15 A; attr196015: 480V AC; attr196017: 14kA at 480V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
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Miniature Circuit Breaker: 15 A Amps, 277V AC, 1 Poles, Std (MPN BQD115). Key specifications — attr196014: 15 A; attr196015: 277V AC; attr196017: 14kA at 277V AC; attr196018: Siemens P1 Panelboards; attr196016: Single; attr232503: BQD.
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