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SIEMENS Miniature Circuit Breaker: 50 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: 50 A Amps, 480V AC, 3 Poles

The Siemens BQD Series Miniature Circuit Breaker (MPN BQD350) is a 50 A, 480V AC, 3-pole bolt-on unit with a 14kA interrupting rating at 480V AC, designed for use in Siemens P1 Panelboards. 3G Electric sources this…

SKU 3G-OTH-725646

Brand
SIEMENS
Item
Miniature Circuit Breaker: 50 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
BQD350
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 BQD350) is a 50 A, 480V AC, 3-pole bolt-on unit with a 14kA interrupting rating at 480V AC, designed for use in Siemens P1 Panelboards. 3G Electric sources this genuine industrial circuit breaker as part of our broader electrical supply capability across 14 departments, with specialist depth in controls and power distribution.

Frequently Asked Questions

What is the Siemens BQD350 miniature circuit breaker used for?

The Siemens BQD350 is a 50 A, 480V AC, 3-pole bolt-on miniature circuit breaker designed for overcurrent protection in Siemens P1 Panelboards. It is commonly used in commercial and industrial power distribution systems where reliable branch circuit protection is required.

What are the specifications of the Siemens BQD350 circuit breaker?

The Siemens BQD350 is rated 50 A at 480V AC, 3-pole, with a 14kA interrupting capacity at 480V AC. It is a bolt-on type, standard trip, part of the BQD Series, and designed for use in Siemens P1 Panelboards. 3G Electric supplies this genuine Siemens component globally.

Where to buy Siemens BQD350 circuit breakers worldwide?

3G Electric supplies the Siemens BQD350 miniature circuit breaker to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine Siemens BQD Series component.

How to install a Siemens BQD350 bolt-on circuit breaker?

Install the Siemens BQD350 by ensuring the panel is de-energized, then align the breaker's bolt-on tabs with the bus stabs in a Siemens P1 Panelboard. Tighten the mounting screw to the manufacturer's torque specification. Always follow local electrical codes and use proper personal protective equipment.

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: 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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