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Square D BDA24050Y4 Molded Case Circuit Breaker
- 50A
- 2 Pole
- I-Line
Square D
BDA24050Y4
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA24050Y4
Quantity
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Square D BDA24050Y4 - 50A 2 Pole Molded Case Circuit Breaker
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Description
Belonging to the PowerPacT B-Frame series, the Square D BDA24050Y4 is a 50A, 2-pole molded case circuit breaker. It delivers thermal-magnetic (LI) trip functions for industrial power systems. Designed with a factory-configured BC phase connection, it mounts into Square D I-Line panelboards and switchboards. This model replaces the legacy FA24050 breaker. Featuring an 18 kAIC rating at 480VAC, this current-limiting unit includes a push-to-trip mechanism and is HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | BDA24050Y4 |
| 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, Padlock Attachment, Rotary Handle |
|---|---|
| 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 |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Visual Trip Indicator |
Product FAQs
7 answersWhat legacy Square D circuit breaker does the BDA24050Y4 replace?
The BDA24050Y4 is part of the PowerPacT B-frame series, which replaces legacy FA-frame breakers such as the FA24050. Note that the "Y4" suffix indicates a factory-configured BC phase connection.
What does the "Y4" suffix indicate on the BDA24050Y4?
In Square D I-Line circuit breakers, the "Y4" suffix designates a factory-configured BC phase connection. This determines which bus bars the breaker will draw power from when installed in an I-Line panelboard.
What type of panelboards are compatible with the BDA24050Y4?
This breaker features an I-Line plug-in mounting style and is designed exclusively for use in Square D I-Line panelboards and switchboards. It cannot be used in standard unit-mount enclosures or QO/Homeline load centers.
Is the BDA24050Y4 a current-limiting circuit breaker?
Yes, PowerPacT B-frame breakers feature dual-break rotating contacts that rapidly extinguish fault currents. This current-limiting design reduces peak energy let-through, which lowers enclosure pressure and improves series ratings.
Is the BDA24050Y4 suitable for reverse feeding?
Yes, PowerPacT B-frame circuit breakers are suitable for reverse feed applications. Power can be supplied to either the line or load terminals without affecting the trip characteristics.
Does this breaker include a push-to-trip feature for mechanical testing?
Yes, all PowerPacT B-frame circuit breakers feature an integral push-to-trip button on the cover. This allows you to manually trip the breaker to verify the mechanical operation of the trip mechanism.
Is the BDA24050Y4 rated for HVAC applications?
Yes, this breaker carries an HACR rating, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits.
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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.