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SIEMENS Miniature Circuit Breaker: 90 A Amps, 240V AC, 3 Poles - B Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSB Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS Miniature Circuit Breaker: 90 A Amps, 240V AC, 3 Poles

The Siemens B390HH is a 90 A, 240V AC, three-phase, three-pole miniature circuit breaker from the BL Series, designed for bolt-on use with P1 Panelboards. It has a maximum AIR rating of 65kA at 240V AC. 3G Electric…

SKU 3G-OTH-722094

Brand
SIEMENS
Item
Miniature Circuit Breaker: 90 A Amps, 240V AC, 3 Poles
Category
B Series, Bolt-On Siemens Miniature Circuit Breakers
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Technical Specifications

SIEMENS
Manufacturer Part Number
B390HH
Series
BL
Type
Std
AC
240V
Amps
90 A
Phase
Three
Poles
3
For Use With
P1 Panelboards
Max. AIR Rating
65kA at 240V AC
AC Voltage Rating
240V AC
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens B390HH is a 90 A, 240V AC, three-phase, three-pole miniature circuit breaker from the BL Series, designed for bolt-on use with P1 Panelboards. It has a maximum AIR rating of 65kA at 240V AC. 3G Electric interprets your demand for this standard-type breaker, sources it as an authorised distributor, and supports your procurement across 14 industrial departments — with specialist depth in combustion, pumps and controls.

Frequently Asked Questions

What is the Siemens B390HH miniature circuit breaker used for?

The Siemens B390HH is a 90 A, 240V AC, three-pole miniature circuit breaker from the BL Series. It is designed for bolt-on use with P1 Panelboards to protect electrical circuits from overloads and short circuits in commercial and industrial applications.

What are the specifications of the Siemens B390HH circuit breaker?

The Siemens B390HH has a 90 A amp rating, 240V AC voltage rating, and a maximum AIR rating of 65kA at 240V AC. It is a three-phase, three-pole, standard-type breaker from the BL Series, designed for bolt-on use with P1 Panelboards.

Where to buy the Siemens B390HH circuit breaker worldwide?

3G Electric supplies the Siemens B390HH miniature circuit breaker worldwide. We interpret your demand, source the genuine Siemens part, and handle full logistics, customs clearance, and delivery to your site — supporting procurement across 14 industrial departments.

How to install the Siemens B390HH circuit breaker?

Install the Siemens B390HH by bolting it securely into a compatible P1 Panelboard. Ensure the panel is de-energized, verify the 90 A, 240V AC rating matches your system, and torque connections per Siemens guidelines. Always follow local electrical codes and use qualified personnel.

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 b 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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