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SIEMENS BQ3B020H BQH Series 20A 3-Pole 240V AC High Interrupting - BQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSBQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS BQ3B020H BQH Series 20A 3-Pole 240V AC High Interrupting

The Siemens BQH Series BQ3B020H is a 20 A, 240V AC, three-pole miniature circuit breaker with high interrupting capacity (22kA at 240V AC). Designed for bolt-on installation in Siemens panelboards, this BQ & BQH…

SKU 3G-OTH-623678

Brand
SIEMENS
Item
BQ3B020H BQH Series 20A 3-Pole 240V AC High Interrupting
Category
BQ & BQH Series, Bolt-On Siemens Miniature Circuit Breakers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SIEMENS
Manufacturer Part Number
BQ3B020H
Type
High Interrupting Capacity
AC
240V
Poles
3

Technical Documents

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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens BQH Series BQ3B020H is a 20 A, 240V AC, three-pole miniature circuit breaker with high interrupting capacity (22kA at 240V AC). Designed for bolt-on installation in Siemens panelboards, this BQ & BQH Series breaker provides overcurrent protection for industrial electrical distribution.

Frequently Asked Questions

What is the Siemens BQ3B020H miniature circuit breaker used for?

The Siemens BQ3B020H is a three-pole, 20 A, 240V AC miniature circuit breaker with high interrupting capacity (22kA at 240V AC). It provides overcurrent protection in industrial electrical distribution, typically installed in Siemens panelboards for branch circuits in manufacturing plants, commercial buildings, and process facilities.

What are the specifications of the Siemens BQ3B020H?

The Siemens BQ3B020H is a BQH Series bolt-on miniature circuit breaker rated 20 A, 240V AC, three poles, with a high interrupting capacity of 22kA at 240V AC. It is designed for use in Siemens panelboards and carries the manufacturer part number BQ3B020H.

Where to buy the Siemens BQ3B020H worldwide?

3G Electric supplies the Siemens BQ3B020H 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 for pricing and lead time on this BQH Series breaker.

How to install the Siemens BQ3B020H in a panelboard?

The Siemens BQ3B020H is a bolt-on type breaker. Ensure the panelboard is de-energized, then align the breaker's mounting holes with the bus bar stabs and tighten the terminal screws to the manufacturer's torque specification. Always follow Siemens installation instructions and local electrical codes for safe operation.

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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