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Square D BGA34045Y Molded Case Circuit Breaker
- 45A
- 3 Pole
- I-Line
Square D
BGA34045Y
Molded Case Circuit Breaker
Brand
Square D
SKU
BGA34045Y
Quantity
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Square D BGA34045Y - 45A 3 Pole Molded Case Circuit Breaker
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Description
Designed to handle demanding electrical loads, the Square D BGA34045Y is a 3-pole, 45A molded case circuit breaker. As part of the PowerPacT B-Frame series, it provides fixed long-time and instantaneous (LI) trip functions for commercial and industrial applications. This breaker installs into Square D I-Line panelboards and switchboards with a factory-configured ABC phase connection. It serves as a substitute for legacy FA34045 units. It offers a 35kAIC interrupt rating at 480Y/277VAC.Specifications
| Brand | Square D |
|---|---|
| Part Number | BGA34045Y |
| Series | BGA |
| Amperage | 45A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 20kA @ 250VDC |
| Frame Type | BGA |
|---|---|
| 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 |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle, Terminal Shields |
|---|---|
| Accessories | Phase Connection ABC (Factory Configured) |
| 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, Reverse Feed |
Product FAQs
6 answersWhat panelboards accept the BGA34045Y circuit breaker?
This breaker is designed for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection that engages directly with the bus stack.
Can the PowerPact BGA34045Y replace older FA frame breakers?
Yes, the PowerPact B-Frame series is the designated replacement for legacy F-Frame breakers. The BGA34045Y can replace older FA34045 I-Line breakers, offering upgraded features while maintaining the same mounting space dimensions for easy retrofitting.
How is the BGA34045Y installed into an I-Line panelboard?
The breaker racks directly onto the I-Line bus stack using its plug-in jaws. Once seated, it is secured in place by tightening the mounting bracket screw to the equipment backpan.
Do the lugs on the BGA34045Y accept both aluminum and copper wire?
Yes, the standard mechanical lugs are rated for both aluminum and copper conductors ranging from 14 AWG to 2/0 AWG. Always use a calibrated torque tool to tighten the wire binding screws to the manufacturer marked specifications to ensure a secure connection.
How does the BGA34045Y protect electrical circuits during a fault?
This breaker utilizes a thermal magnetic trip unit for long-time overload and instantaneous short circuit protection. It also features dual-break rotating contacts that rapidly repel during a fault, significantly reducing let-through currents and enhancing equipment safety.
Can field-installable accessories be added to the BGA34045Y?
Yes, the PowerPact B-Frame platform supports a variety of field-installable accessories. Auxiliary switches, alarm switches, and shunt trips can be installed directly into the designated accessory compartments under the front cover of the breaker.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 7 reviews.
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Rating
7 reviews
- BBrentVerified BuyerReviewingSquare D BGA36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/16/26Breakers
Breakers looked great.
- BBrentVerified BuyerReviewingSquare D BGA36030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/16/26Breakers
Breakers that were ordered were exactly as expected.
- PHPaul H.Verified BuyerReviewingSquare D BGA36060 - 60A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/23/26Worked Perfectly.
Prompt shipping. We received the breaker on-time for a scheduled outage of the switchgear feeding an entire building. Thank you!
- JBJosh B.Verified BuyerReviewingSquare D BGA36070 - 70A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars11/11/25Great transaction.
Product arrived in 3 days and as advertised.
- JMJohn M.ReviewingSquare D BGA36080 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/15/24Good purchase
Material arrived in good condition. Glad to have a source to get this quickly.