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Square D BGA34050Y Molded Case Circuit Breaker

  • 50A
  • 3 Pole
  • I-Line
Square D BGA34050Y
Molded Case Circuit Breaker
Brand Square D
SKU BGA34050Y
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  • 50A
  • 3 Pole
  • I-Line

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Square D BGA34050Y - 50A 3 Pole Molded Case Circuit Breaker

Square D BGA34050Y - 50A 3 Pole Molded Case Circuit Breaker

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$1,522.50 In Stock

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Description

The Square D BGA34050Y is a 3-pole, 50A molded case circuit breaker. As part of the PowerPacT B-Frame family, it delivers dependable thermal-magnetic (LI) protection for commercial applications. Featuring an I-Line plug-on connection, this MCCB mounts into compatible Square D I-Line panelboards. It acts as an upgrade for the discontinued FA34050, maintaining compatibility with existing setups. With a 35kAIC rating at 480V, it ensures superior fault clearing and includes a Visi-Trip indicator.

Specifications

Key specifications
Brand Square D
Part Number BGA34050Y
Series BGA
Amperage 50A
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 B
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Switchboards
Wire Gauge 14 AWG - 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, Rotary Handle, Lug Kits
Accessories Lugs (Al/Cu)
Standards CSA C22.2 No 5, EN/IEC 60947-2, EN/IEC 60947-5-1, GB 14048.2, NEMA AB 1, NMX J-266, UL 489
Approval CCC, CE, CSA, EAC, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Visual Trip Indicator, Reverse Feed

Product FAQs

5 answers
Can the BGA34050Y be used to replace older Square D circuit breakers?

Yes. The PowerPacT B-frame is the direct manufacturer upgrade for the discontinued legacy F-frame series. The BGA34050Y directly replaces the FA34050 and maintains the same 1.5-inch per pole width, allowing it to fit existing I-Line panelboards without requiring blank filler plates.

How does the I-Line mounting system work on the BGA34050Y?

This breaker features a plug-on I-Line connection on the line side that snaps directly onto the busbars of Square D I-Line panelboards and switchboards. The load side utilizes standard mechanical lugs for wire termination.

What does the Y suffix indicate on this circuit breaker?

In the PowerPacT B-frame I-Line series, the Y suffix specifies that the breaker is factory-configured with an ABC phase connection for the panelboard bus.

What are the wire size requirements for the load side terminals?

The load side mechanical lugs are designed to accept either aluminum or copper conductors ranging from 14 AWG to 2/0 AWG.

How does the G in the BGA34050Y part number affect its interrupting ratings?

The G designates the breaker's specific interrupting tier within the PowerPacT B-frame family. This provides a 65kA capacity at 240VAC, 35kA at 480VAC, and 18kA at 600Y/347VAC, making it suitable for commercial and industrial distribution systems.

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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.