Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Square D BGA34040Y Molded Case Circuit Breaker
- 40A
- 3 Pole
- I-Line
Square D
BGA34040Y
Molded Case Circuit Breaker
Brand
Square D
SKU
BGA34040Y
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D BGA34040Y - 40A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D BGA34040Y - 40A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | BGA34040Y |
| Series | BGA |
| Amperage | 40A |
| 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, Square D I-Line 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, Common Trip, Trip-Free Mechanism |
Quantity
Square D BGA34040Y - 40A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | BGA34040Y |
| Series | BGA |
| Amperage | 40A |
| 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, Square D I-Line 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, Common Trip, Trip-Free Mechanism |
Similar Items
45A 3 Pole Molded Case Circuit Breaker
35A 3 Pole Molded Case Circuit Breaker
35A 3 Pole Molded Case Circuit Breaker
Description
Built for heavy-duty commercial environments, this 40A PowerPacT B-Frame circuit breaker delivers reliable thermal-magnetic trip functions. The 3-pole device is designed to protect critical electrical systems from overloads and short circuits. Designed specifically for Square D I-Line panelboards and switchboards, it features a convenient plug-on mounting style. It also replaces older FA34040 models, making it an excellent choice for facility maintenance. It features a 35kAIC rating at 480V.Specifications
| Brand | Square D |
|---|---|
| Part Number | BGA34040Y |
| Series | BGA |
| Amperage | 40A |
| 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, Square D I-Line 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle |
|---|---|
| Accessories | Load Side Lugs Included |
| 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, Common Trip, Trip-Free Mechanism |
Product FAQs
7 answersCan the PowerPacT BGA34040Y replace older Square D F-frame circuit breakers?
Yes, the PowerPacT B-frame is the direct manufacturer replacement for legacy FA and FH series I-Line breakers. It fits into the exact same I-Line panelboard and switchboard spaces, utilizing the same plug-on bus connections.
What does the "Y" suffix indicate in the BGA34040Y catalog number?
The "Y" suffix indicates that this 3-pole breaker is rated for systems with a maximum nominal voltage of 480Y/277VAC. It is strictly intended for Wye (star) configured systems and must not be used in 480V Delta applications.
Which electrical enclosures will accept the BGA34040Y breaker?
This molded case circuit breaker features a plug-in connection designed exclusively for Square D I-Line panelboards and I-Line switchboards. It will not mount in standard QO, NQ, or NF series load centers.
Are the load lugs on the BGA34040Y rated for aluminum wiring?
Yes, the factory-installed load lugs are dual-rated for both aluminum (Al) and copper (Cu) conductors. They accommodate wire sizes ranging from 14 AWG up to 2/0 AWG.
Can I adjust the trip settings on this 40A PowerPacT breaker?
No, the BGA34040Y utilizes a standard thermal-magnetic trip unit with fixed sensing elements. Both the long-time (thermal overload) and instantaneous (magnetic short circuit) protection functions are factory calibrated and cannot be field-adjusted.
Is the BGA34040Y suitable for direct current (DC) installations?
Yes, in addition to its standard AC ratings, this breaker is certified for DC applications. It handles up to 250VDC with a short circuit current interrupting rating of 20kA.
Is the BGA34040Y a 100% rated circuit breaker?
No, this is a standard 80% rated breaker. For continuous loads lasting three hours or more, it should be loaded to no more than 32 amps (80% of its 40A rating) per National Electrical Code requirements.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 7 reviews.
Search
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.