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Square D BGA34020Y Molded Case Circuit Breaker

  • 20A
  • 3 Pole
  • I-Line
Square D BGA34020Y
Molded Case Circuit Breaker
Brand Square D
SKU BGA34020Y
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  • 20A
  • 3 Pole
  • I-Line

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Square D BGA34020Y - 20A 3 Pole Molded Case Circuit Breaker

Square D BGA34020Y - 20A 3 Pole Molded Case Circuit Breaker

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$675.00 In Stock

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Description

Designed for heavy-duty applications, the Square D BGA34020Y is a 3-pole, 20A molded case circuit breaker from the PowerPact B-Frame series. Equipped with an I-Line plug-on mounting style and an ABC phase connection, it installs into Square D I-Line switchboards. It also serves as a cross-reference for legacy FA34020 breakers. Boasting a 35kA interrupting capacity at 480VAC, this current-limiting breaker features a Visi-Trip indicator for rapid fault detection.

Specifications

Key specifications
Brand Square D
Series BGA
Amperage 20A
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 14-2/0 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
Accessories None included
Standards CSA C22.2 No. 5, EN/IEC 60947-2, 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

Product FAQs

6 answers
What type of panelboards accept the BGA34020Y circuit breaker?

This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a plug-on I-Line connection for the line side and lug terminals for the load side.

Can I use the BGA34020Y to replace an older FA or FH frame I-Line breaker?

Yes, Square D PowerPacT B-frame breakers are the direct replacement for legacy FA and FH frame I-Line breakers. They fit into the same mounting space, making retrofits and panel expansions straightforward.

How does the I-Line connection mount into the panelboard?

The breaker snaps directly onto the panel's I-Line bus stack using plug-on jaws on the line side. This allows for quick installation without requiring individual mounting hardware or cable connections on the line side.

Is the BGA34020Y suitable for use on direct current (DC) circuits?

Yes, this breaker is rated for up to 250VDC with an interrupting capacity of 20kA, making it suitable for specific DC applications.

What wire sizes and materials are compatible with the load lugs on this breaker?

The factory-installed load lugs accept 14 AWG to 2/0 AWG wire and are compatible with both aluminum and copper conductors.

What type of protection does the thermal-magnetic trip unit provide?

The fixed thermal-magnetic trip unit provides standard LI protection, which includes Long-Time (L) sensing for overloads and Instantaneous (I) sensing for short circuits.

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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.