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Square D BGA36045 Molded Case Circuit Breaker

  • 45A
  • 3 Pole
  • I-Line
Square D BGA36045
Molded Case Circuit Breaker
Brand Square D
SKU BGA36045
Select Item Condition
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  • 45A
  • 3 Pole
  • I-Line

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Square D BGA36045 - 45A 3 Pole Molded Case Circuit Breaker

Square D BGA36045 - 45A 3 Pole Molded Case Circuit Breaker

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$1,276.00 Check Stock

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Description

Built to optimize panel space, the Square D BGA36045 is a 45A, 3-pole circuit breaker utilizing PowerPacT B-Frame architecture. It delivers robust thermal-magnetic protection for commercial and industrial facilities. This breaker easily mounts into standard Square D I-Line panelboards and switchboards. It acts as a substitute for discontinued FA36045 units, maintaining the same pole width for hassle-free integration.

Specifications

Key specifications
Brand Square D
Part Number BGA36045
Series BGA
Amperage 45A
Poles 3
Mounting Style I-Line
Voltage 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC
Phase 3
AIC Rating 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 20kA @ 250VDC
Fit and installation
Frame Type BGA
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Square D I-Line Switchboards
Wire Gauge 14-2/0 AWG (Al/Cu)
Max Wire 2/0 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle
Accessories None included
Standards CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB 1, UL 489
Approval CCC, CE, CSA, EAC, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Visual Trip Indicator, 80% Rated, HID Rated

Product FAQs

7 answers
Can the BGA36045 be used to replace older Square D circuit breakers?

Yes, the PowerPacT B-frame series was introduced by Schneider Electric to replace legacy 100A FA and FH frame circuit breakers. It fits into the same I-Line panelboard mounting space to simplify retrofits and upgrades.

What type of panelboards are compatible with the BGA36045?

This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a plug-on jaw connection that mounts directly to the I-Line bus assembly.

What does the "G" in the BGA36045 catalog number indicate?

The "G" designates the interrupting rating tier within the PowerPacT B-frame family. For this breaker, it indicates a maximum interrupting capacity of 65 kA at 240 VAC, 35 kA at 480 VAC, and 18 kA at 600Y/347 VAC.

Are the lugs on the BGA36045 rated for both aluminum and copper wire?

Yes, the factory-installed lugs are dual-rated for aluminum and copper conductors, accepting wire sizes from 14 AWG to 2/0 AWG.

Is the BGA36045 rated for use in HVAC equipment?

Yes, PowerPacT B-frame circuit breakers are HACR rated for use with heating, air conditioning, and refrigeration equipment.

Does this breaker require a separate mounting bracket for installation?

No, as an I-Line style breaker, it features built-in plug-on jaws that attach directly to the panelboard bus, eliminating the need for separate mounting brackets or strap kits.

Does the BGA36045 feature a push-to-trip button?

Yes, all PowerPacT circuit breakers include an integral push-to-trip button on the cover to manually trip the breaker and verify the operating mechanism is functioning correctly.

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Reviews

4.9
Rated 4.9 out of 5 stars
Based on 7 reviews
Rating
Ratings
7 reviews
  • B
    Brent
    Verified Buyer
    Reviewing
    Square D BGA36050 - 50A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/16/26
    Breakers

    Breakers looked great.

  • B
    Brent
    Verified Buyer
    Reviewing
    Square D BGA36030 - 30A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    7/16/26
    Breakers

    Breakers that were ordered were exactly as expected.

  • PH
    Paul H.
    Verified Buyer
    Reviewing
    Square D BGA36060 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/23/26
    Worked Perfectly.

    Prompt shipping. We received the breaker on-time for a scheduled outage of the switchgear feeding an entire building. Thank you!

  • JB
    Josh B.
    Verified Buyer
    Reviewing
    Square D BGA36070 - 70A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    11/11/25
    Great transaction.

    Product arrived in 3 days and as advertised.

  • JM
    John M.
    Flag of United States
    Reviewing
    Square D BGA36080 - 80A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/15/24
    Good purchase

    Material arrived in good condition. Glad to have a source to get this quickly.