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Square D BDA24050Y1 Molded Case Circuit Breaker
- 50A
- 2 Pole
- I-Line
Square D
BDA24050Y1
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA24050Y1
Quantity
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Square D BDA24050Y1 - 50A 2 Pole Molded Case Circuit Breaker
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Description
A compact solution for power distribution, the Square D BDA24050Y1 is a 2-pole, 50A molded case circuit breaker from the PowerPacT B-Frame lineup. It provides essential long-time and instantaneous (LI) trip functions for commercial and industrial facilities. This breaker installs into Square D I-Line panelboards and switchboards, serving as a direct replacement for the FA24050. It features a factory-configured AB phase connection and provides an 18 kAIC interrupting rating at 480Y/277V.Specifications
| Brand | Square D |
|---|---|
| Series | BDA |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 10kA @ 600Y/347VAC, 10kA @ 250VDC |
| Frame Type | BDA |
|---|---|
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Padlock Attachment |
|---|---|
| Accessories | I-Line Bracket |
| 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 |
Product FAQs
8 answersCan the BDA24050Y1 replace older FA frame circuit breakers?
Yes, the PowerPacT B-frame BDA24050Y1 is the direct modern replacement for legacy 50A, 2-pole FA frame breakers, such as the FA24050AB, used in Square D I-Line panelboards.
What does the Y1 suffix indicate on the BDA24050Y1?
The Y1 suffix designates that this I-Line circuit breaker is factory-configured for an AB phase connection on the panelboard bus.
How is the line side of this breaker connected?
The line side utilizes an I-Line style plug-on connection that mounts directly to the bus of Square D I-Line panelboards and switchboards, eliminating the need for line-side wiring.
What does the D in the BDA frame designation mean?
In the PowerPacT B-frame nomenclature, the D indicates the interrupting rating tier. This specific tier provides an 18 kA fault clearing capacity at 480V.
Is this breaker compatible with standard QO or Homeline load centers?
No, the BDA24050Y1 is exclusively designed for commercial and industrial Square D I-Line panelboards and switchboards. It will not fit in residential QO or Homeline enclosures.
Are the trip settings on the BDA24050Y1 adjustable?
No, this breaker is equipped with a fixed thermal-magnetic trip unit. Both the long-time overload and instantaneous short-circuit trip thresholds are factory-set and cannot be adjusted in the field.
What wire sizes are accepted by the load lugs?
The factory-installed load-side mechanical lugs accept aluminum or copper conductors ranging from 14 AWG to 2/0 AWG.
What internal contact design does the PowerPacT B-frame use?
PowerPacT B-frame breakers feature dual-break rotating contacts. This design reduces the amount of peak current during a short-circuit fault, limiting let-through currents and enhancing downstream equipment protection.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 9 reviews.
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Rating
9 reviews
- KFKevin F.Verified BuyerReviewingSquare D BDA36100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/2/26Good price, fast delivery
My local supplier was backordered one this item for a few months, Superbreakers beat the price and delivered it quickly.
- AGAlan G.Verified BuyerReviewingSquare D BDA36020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/10/26Excellent Value
Excellent Value and fast shipping. SuperBreakers delivered!!
- MMMike M.Verified BuyerReviewingSquare D BDA36050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/25/26Review
Super Breakers had the breakers I needed in stock at a fair price and shipped & delivered in an expedited fashion. They are my go-to guys for hard to find breakers.
Mike @ Frey Electric
- SMSergio M.Verified BuyerReviewingSquare D BDA36040 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/19/26Installed & working
Ordered this from SuperBreakers when local vendors were quoting me 25%+.
So I got a refurbished version of this breaker.
It is installed and working.
Also, service was great.
Thank you SuperBreakers!
- GOGeorge O.ReviewingSquare D BDA36080 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars8/18/22Just received it. Packaging was
Just received it. Packaging was good. Product seems to be exactly as described. Installing soon.