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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 B390 is a 90 A, 240V AC, 3-pole miniature circuit breaker from the BL Series, designed for bolt-on use with Siemens P1 Panelboards. It features a standard type and a maximum AIR rating of 10kA at 240V AC…

SKU 3G-OTH-722061

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
B390
Series
BL
Type
Std
AC
240V
Amps
90 A
Phase
Three
Poles
3
For Use With
Siemens P1 Panelboards
Max. AIR Rating
10kA at 240V AC
AC Voltage Rating
240V AC
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SIEMENS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens B390 is a 90 A, 240V AC, 3-pole miniature circuit breaker from the BL Series, designed for bolt-on use with Siemens P1 Panelboards. It features a standard type and a maximum AIR rating of 10kA at 240V AC, supporting three-phase applications.

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 B390 miniature circuit breaker used for?

The Siemens B390 is a 90 A, 240V AC, 3-pole miniature circuit breaker designed for bolt-on use in Siemens P1 Panelboards. It provides overcurrent protection for three-phase electrical systems in commercial and industrial applications, with a maximum AIR rating of 10kA at 240V AC.

What are the specifications of the Siemens B390 circuit breaker?

The Siemens B390 is a 90 A, 240V AC, 3-pole miniature circuit breaker from the BL Series. It has a standard type, a maximum AIR rating of 10kA at 240V AC, and is designed for bolt-on use with Siemens P1 Panelboards. It supports three-phase applications.

Where to buy the Siemens B390 circuit breaker worldwide?

3G Electric supplies the Siemens B390 miniature circuit breaker worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this 90 A, 240V AC, 3-pole breaker from the BL Series.

How to install the Siemens B390 circuit breaker?

Install the Siemens B390 as a bolt-on breaker into a Siemens P1 Panelboard. Ensure the panel is de-energized, then align the breaker with the bus stabs and tighten the mounting screws to the manufacturer's torque specification. Always follow local electrical codes and use appropriate 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 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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