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Siemens B390 - 90A 3 Pole Miniature Circuit Breaker

Brand Siemens
SKU B390
5.0
Rated 5.0 out of 5 stars
2 Reviews
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99

Siemens B390 - 90A 3 Pole Miniature Circuit Breaker

Brand Siemens
SKU B390
5.0
Rated 5.0 out of 5 stars
2 Reviews
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Earn 129 SuperPoints

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Siemens B390 - 90A 3 Pole Miniature Circuit Breaker

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$129.99 In stock

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DescriptionSpecificationsSuperClubWarranties
Description
Built for reliable power distribution, the Siemens B390 is a 3-pole, 90A miniature circuit breaker. It operates at 240VAC and utilizes thermal-magnetic trip technology to protect commercial branch circuits from overloads and short circuits. This Type BL breaker features a bolt-on mounting style for secure installation into Siemens P1, P2, and P3 panelboards. It includes load-side lugs that accommodate up to 1/0 AWG conductors. Delivering a 10kAIC rating, the unit is HACR certified.

Specifications

Brand Siemens
Series B
Part Number B390
Amperage 90A
Voltage 240VAC
Poles 3
Phase 3
AIC Rating 10kA @ 240VAC
Mounting Style Bolt-On
Terminal Type Lugs
For Use With Siemens P1, P2, P3 Panelboards
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Wire Gauge 4-1/0 AWG (Cu), 2-1/0 AWG (Al)
Max Wire 1/0 AWG
Min Wire 4 AWG (Cu), 2 AWG (Al)
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Rotary Handle
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, UL 489
Approval CSA, HACR, UL
Temp Rating 40C
Construction Features HACR Rated, Non-Interchangeable Trip, Trip-Free Mechanism

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Warranties

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International Shipping

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5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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2 reviews
  • T
    Tony
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2/20/26
    New breaker

    Replacement of a 25 year old breaker fixed an issue with commercial dishwasher. Thank you

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  • KM
    Kent M.
    I recommend this product
    Rated 5 out of 5 stars
    8/23/19
    Manager

    Manager

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