Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SIEMENS B280 Miniature Circuit Breaker, 80A, 120/240V AC, 2-Pole, BL Series - B Series, Bolt-On Siemens Miniature Circuit Breakers
SIEMENSB Series, Bolt-On Siemens Miniature Circuit Breakers

SIEMENS B280 Miniature Circuit Breaker, 80A, 120/240V AC, 2-Pole, BL Series

The Siemens B280 is a 2-pole, 80 A miniature circuit breaker from the BL Series, rated for 120/240V AC single-phase service with a maximum AIR rating of 10kA at 120/240V AC. Designed for bolt-on installation in…

SKU 3G-OTH-722118

Also listed as: B 280 · B-280

Brand
SIEMENS
Item
B280 Miniature Circuit Breaker, 80A, 120/240V AC, 2-Pole, BL Series
Category
B Series, Bolt-On Siemens Miniature Circuit Breakers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
B280
Series
BL
Type
Std
AC
120/240V
Amps
80 A
Phase
Single
Poles
2
For Use With
Siemens P1 Panelboards
Max. AIR Rating
10kA at 120/240V AC
AC Voltage Rating
120/240V AC

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Siemens B280 is a 2-pole, 80 A miniature circuit breaker from the BL Series, rated for 120/240V AC single-phase service with a maximum AIR rating of 10kA at 120/240V AC. Designed for bolt-on installation in Siemens P1 Panelboards, this standard-trip breaker provides overcurrent protection in commercial and industrial electrical distribution systems.

Frequently Asked Questions

What is the Siemens B280 miniature circuit breaker used for?

The Siemens B280 is a 2-pole, 80 A miniature circuit breaker used for overcurrent protection in commercial and industrial electrical distribution systems. It is designed for bolt-on installation in Siemens P1 Panelboards and handles single-phase, 120/240V AC service with a 10kA interrupting rating.

What are the specifications of the Siemens B280 circuit breaker?

The Siemens B280 is rated 80 A, 120/240V AC, single-phase, 2-pole, with a maximum AIR rating of 10kA at 120/240V AC. It is a standard-trip, bolt-on type from the BL Series, designed for use with Siemens P1 Panelboards. The manufacturer part number is B280.

Where to buy the Siemens B280 circuit breaker worldwide?

3G Electric supplies the Siemens B280 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 to source this genuine Siemens BL Series breaker for your commercial or industrial application.

How to install the Siemens B280 bolt-on circuit breaker?

The Siemens B280 is a bolt-on type breaker designed for installation in Siemens P1 Panelboards. Ensure the panel is de-energized, then align the breaker with the bus stabs and tighten the bolt securely. Follow standard electrical safety practices and local codes. Always consult a qualified electrician for installation.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from SIEMENS

View all SIEMENS parts
Single-pole, bolt-on miniature circuit breaker rated 45 A at 120/240V AC, part of the BL Series. Features a shunt trip for remote switching and is designed for use with Siemens P1 panelboards. Provides overcurrent protection in commercial and industrial electrical distribution systems
SIEMENS
Single-pole, bolt-on miniature circuit breaker rated 45 A at 120/240V AC, part of the BL Series. Features a shunt trip for remote switching and is designed for use with Siemens P1 panelboards. Provides overcurrent protection in commercial and industrial electrical distribution systems
Three-pole miniature circuit breaker rated 30 A at 240V AC, standard type, from the BL Series. Designed for bolt-on mounting in Siemens P1 Panelboards. Provides overcurrent protection in three-phase electrical distribution systems with a maximum interrupting rating of 65kA at 240V AC
SIEMENS
Three-pole miniature circuit breaker rated 30 A at 240V AC, standard type, from the BL Series. Designed for bolt-on mounting in Siemens P1 Panelboards. Provides overcurrent protection in three-phase electrical distribution systems with a maximum interrupting rating of 65kA at 240V AC
Three-pole miniature circuit breaker rated 80 A at 120/240V AC with a shunt trip. Part of the BL series, it has a maximum AIR rating of 65kA at 240V AC and is designed for bolt-on mounting in P1 panelboards. Suitable for overload and short-circuit protection in commercial and industrial power distribution systems
SIEMENS
Three-pole miniature circuit breaker rated 80 A at 120/240V AC with a shunt trip. Part of the BL series, it has a maximum AIR rating of 65kA at 240V AC and is designed for bolt-on mounting in P1 panelboards. Suitable for overload and short-circuit protection in commercial and industrial power distribution systems
The Siemens B290HH is a 90 A, 2-pole miniature circuit breaker from the BL Series, rated for 120/240V AC single-phase applications. It features a standard trip type and a maximum AIR rating of 65kA at 120/240V AC. Designed for bolt-on installation in P1 Panelboards, it provides overcurrent protection in commercial and industrial electrical distribution systems
SIEMENS
The Siemens B290HH is a 90 A, 2-pole miniature circuit breaker from the BL Series, rated for 120/240V AC single-phase applications. It features a standard trip type and a maximum AIR rating of 65kA at 120/240V AC. Designed for bolt-on installation in P1 Panelboards, it provides overcurrent protection in commercial and industrial electrical distribution systems
The Siemens B360 is a 60 amp, 240V AC, 3-pole miniature circuit breaker from the BL Series. It is a standard-type, three-phase device with a maximum AIR rating of 10kA at 240V AC. Designed for bolt-on installation in Siemens P1 Panelboards, it provides overcurrent protection for branch circuits in commercial and industrial electrical distribution systems
SIEMENS
The Siemens B360 is a 60 amp, 240V AC, 3-pole miniature circuit breaker from the BL Series. It is a standard-type, three-phase device with a maximum AIR rating of 10kA at 240V AC. Designed for bolt-on installation in Siemens P1 Panelboards, it provides overcurrent protection for branch circuits in commercial and industrial electrical distribution systems
Three-pole miniature circuit breaker rated 40 A at 240V AC, standard type, from the BL Series. Designed for bolt-on mounting in P1 Panelboards. Maximum AIR rating of 65 kA at 120/240V AC. Provides overcurrent protection in electrical distribution systems
SIEMENS
Three-pole miniature circuit breaker rated 40 A at 240V AC, standard type, from the BL Series. Designed for bolt-on mounting in P1 Panelboards. Maximum AIR rating of 65 kA at 120/240V AC. Provides overcurrent protection in electrical distribution systems
30 A, 2-pole miniature circuit breaker for overcurrent protection in Siemens P1 panelboards. Rated 120/240V AC, single-phase, with a maximum interrupting rating of 22kA at 120/240V AC. Bolt-on mounting type, part of the BL Series
SIEMENS
30 A, 2-pole miniature circuit breaker for overcurrent protection in Siemens P1 panelboards. Rated 120/240V AC, single-phase, with a maximum interrupting rating of 22kA at 120/240V AC. Bolt-on mounting type, part of the BL Series
Three-pole, three-phase miniature circuit breaker rated 70 A at 120/240V AC with shunt trip. Part of the BL Series, bolt-on design for use with Siemens P1 panelboards. Provides overcurrent and short-circuit protection with a maximum AIR rating of 10kA at 240V AC
SIEMENS
Three-pole, three-phase miniature circuit breaker rated 70 A at 120/240V AC with shunt trip. Part of the BL Series, bolt-on design for use with Siemens P1 panelboards. Provides overcurrent and short-circuit protection with a maximum AIR rating of 10kA at 240V AC