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SIEMENS Miniature Circuit Breaker: 70 A Amps, 120/240V AC, 2 Poles - BQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSBQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS Miniature Circuit Breaker: 70 A Amps, 120/240V AC, 2 Poles

The Siemens BQH Series Miniature Circuit Breaker (MPN BQ2B070H) is a 70 A, 2-pole, high interrupting capacity unit rated at 120/240V AC with a 22kA interrupting capacity at 120/240V AC. Designed for use in Siemens…

SKU 3G-OTH-623738

Brand
SIEMENS
Item
Miniature Circuit Breaker: 70 A Amps, 120/240V AC, 2 Poles
Category
BQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
BQ2B070H
Type
High Interrupting Capacity
AC
120/240V
Poles
2
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens BQH Series Miniature Circuit Breaker (MPN BQ2B070H) is a 70 A, 2-pole, high interrupting capacity unit rated at 120/240V AC with a 22kA interrupting capacity at 120/240V AC. Designed for use in Siemens Panelboards, this bolt-on breaker provides overcurrent protection in a single-phase configuration.

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 BQ2B070H miniature circuit breaker used for?

The Siemens BQ2B070H is a 70 A, 2-pole miniature circuit breaker used for overcurrent protection in single-phase Siemens panelboards. Its high interrupting capacity (22kA at 120/240V AC) makes it suitable for commercial and industrial electrical distribution systems where fault currents are elevated.

What are the specifications of the Siemens BQ2B070H circuit breaker?

The Siemens BQ2B070H is a 70 A, 2-pole, bolt-on miniature circuit breaker rated 120/240V AC. It has a high interrupting capacity of 22kA at 120/240V AC and is designed for single-phase use in Siemens panelboards. The series is BQH, part of the BQ & BQH family.

Where to buy the Siemens BQ2B070H circuit breaker worldwide?

3G Electric supplies the Siemens BQ2B070H miniature circuit breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery for international orders. Contact us for pricing and lead time on this Siemens BQH series breaker.

How to install the Siemens BQ2B070H circuit breaker?

Install the Siemens BQ2B070H by turning off upstream power, then bolting the breaker into a compatible Siemens panelboard bus. Torque terminals to manufacturer specifications (typically 25–35 in-lbs for copper wire). Verify the breaker is in the OFF position before connecting load conductors.

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 bq & bqh 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: 70 A Amps, 120/240V AC, 2 Poles, Std (MPN BQ2B070). Key specifications — attr196014: 70 A; attr196015: 120/240V AC; attr196017: 10kA at 120/240V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQ.
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Miniature Circuit Breaker: 70 A Amps, 120/240V AC, 2 Poles, Std (MPN BQ2B070). Key specifications — attr196014: 70 A; attr196015: 120/240V AC; attr196017: 10kA at 120/240V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQ.
Miniature Circuit Breaker: 100 A Amps, 240V AC, 3 Poles, Std (MPN BQ3B100). Key specifications — attr196014: 100 A; attr196015: 240V AC; attr196017: 10kA at 240V AC; attr196018: Siemens Panelboards; attr196016: Three; attr232503: BQ.
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Miniature Circuit Breaker: 100 A Amps, 240V AC, 3 Poles, Std (MPN BQ3B100). Key specifications — attr196014: 100 A; attr196015: 240V AC; attr196017: 10kA at 240V AC; attr196018: Siemens Panelboards; attr196016: Three; attr232503: BQ.
Miniature Circuit Breaker: 80 A Amps, 120/240V AC, 2 Poles, Std (MPN BQ2B080). Key specifications — attr196014: 80 A; attr196015: 120/240V AC; attr196017: 10kA at 120/240V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQ.
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Miniature Circuit Breaker: 80 A Amps, 120/240V AC, 2 Poles, Std (MPN BQ2B080). Key specifications — attr196014: 80 A; attr196015: 120/240V AC; attr196017: 10kA at 120/240V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQ.
Miniature Circuit Breaker: 25 A Amps, 240V AC, 3 Poles, High Interrupting Capacity (MPN BQ3B025H). Key specifications — attr196014: 25 A; attr196015: 240V AC; attr196017: 22kA at 240V AC; attr196018: Siemens Panelboards; attr196016: Three; attr232503: BQH.
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Miniature Circuit Breaker: 25 A Amps, 240V AC, 3 Poles, High Interrupting Capacity (MPN BQ3B025H). Key specifications — attr196014: 25 A; attr196015: 240V AC; attr196017: 22kA at 240V AC; attr196018: Siemens Panelboards; attr196016: Three; attr232503: BQH.
Miniature Circuit Breaker: 70 A Amps, 240V AC, 3 Poles, High Interrupting Capacity (MPN BQ3B070H). Key specifications — attr196014: 70 A; attr196015: 240V AC; attr196017: 22kA at 240V AC; attr196018: Siemens Panelboards; attr196016: Three; attr232503: BQH.
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Miniature Circuit Breaker: 70 A Amps, 240V AC, 3 Poles, High Interrupting Capacity (MPN BQ3B070H). Key specifications — attr196014: 70 A; attr196015: 240V AC; attr196017: 22kA at 240V AC; attr196018: Siemens Panelboards; attr196016: Three; attr232503: BQH.
Miniature Circuit Breaker: 55 A Amps, 120V AC, 1 Poles, Std (MPN BQ1B055). Key specifications — attr196014: 55 A; attr196015: 120V AC; attr196017: 10kA at 120V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQ.
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Miniature Circuit Breaker: 55 A Amps, 120V AC, 1 Poles, Std (MPN BQ1B055). Key specifications — attr196014: 55 A; attr196015: 120V AC; attr196017: 10kA at 120V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQ.
Miniature Circuit Breaker: 20 A Amps, 120V AC, 1 Poles, Std (MPN BQ1B020). Key specifications — attr196014: 20 A; attr196015: 120V AC; attr196017: 10kA at 120V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQ.
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Miniature Circuit Breaker: 20 A Amps, 120V AC, 1 Poles, Std (MPN BQ1B020). Key specifications — attr196014: 20 A; attr196015: 120V AC; attr196017: 10kA at 120V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQ.
Miniature Circuit Breaker: 15 A Amps, 240V AC, 2 Poles, Std (MPN BQ2H015). Key specifications — attr196014: 15 A; attr196015: 240V AC; attr196017: 10kA at 240V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQH.
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Miniature Circuit Breaker: 15 A Amps, 240V AC, 2 Poles, Std (MPN BQ2H015). Key specifications — attr196014: 15 A; attr196015: 240V AC; attr196017: 10kA at 240V AC; attr196018: Siemens Panelboards; attr196016: Single; attr232503: BQH.