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SIEMENS Miniature Circuit Breaker: 70 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: 70 A Amps, 480V AC, 3 Poles

The Siemens BQD Series Miniature Circuit Breaker (MPN BQD370) is a 70 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 interprets…

SKU 3G-OTH-725652

Brand
SIEMENS
Item
Miniature Circuit Breaker: 70 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
BQD370
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 BQD370) is a 70 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 interprets your demand for this standard-type breaker, sources it from Siemens, and supports your procurement with specialist expertise across 14 industrial departments.

Frequently Asked Questions

What is the Siemens BQD370 miniature circuit breaker used for?

The Siemens BQD370 is a 70 A, 480V AC, 3-pole bolt-on miniature circuit breaker designed for branch-circuit protection in Siemens P1 Panelboards. It is commonly used in commercial and industrial electrical distribution systems to protect wiring and equipment from overloads and short circuits.

What are the specifications of the Siemens BQD370 circuit breaker?

The Siemens BQD370 is a 70 A, 480V AC, 3-pole miniature circuit breaker with a 14kA interrupting rating at 480V AC. It is a standard-type, bolt-on unit from the BQD Series, designed for use in Siemens P1 Panelboards. The manufacturer part number is BQD370.

Where to buy the Siemens BQD370 circuit breaker worldwide?

3G Electric supplies the Siemens BQD370 miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us to source this breaker and support your procurement with specialist expertise across 14 industrial departments.

How to install the Siemens BQD370 circuit breaker?

Install the Siemens BQD370 by ensuring the panelboard is de-energized, then bolt the breaker onto the bus bars in a Siemens P1 Panelboard. Torque connections to manufacturer specifications and verify the 70 A rating matches the circuit load. Always follow local electrical codes and use a qualified electrician.

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: 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, 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.
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