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Square D BDA24100Y2 Molded Case Circuit Breaker
- 100A
- 2 Pole
- I-Line
Square D
BDA24100Y2
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA24100Y2
Quantity
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Square D BDA24100Y2 - 100A 2 Pole Molded Case Circuit Breaker
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Description
Built to deliver robust overcurrent protection, this 100A MCCB utilizes fixed thermal-magnetic trip elements. It provides essential LI defense for industrial infrastructure. The I-Line mounting system allows quick installation into compatible Square D panelboards. Featuring an AC phase configuration, it seamlessly replaces older FA24100AC breakers. With an 18kA interrupting capacity at 480VAC, the HACR-rated device incorporates a visual trip indicator to streamline maintenance.Specifications
| Brand | Square D |
|---|---|
| Series | BDA |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 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, Motor Operator |
|---|---|
| Accessories | Phase Connection AC (Y2 Suffix) |
| 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, Visual Trip Indicator, Phase Connection AC |
Product FAQs
6 answersWhat older Square D circuit breakers does the BDA24100Y2 replace?
The PowerPacT B-frame BDA24100Y2 is the direct replacement for legacy 100A, 2-pole F-frame breakers, including the FA and FH series (such as the FA24100AC). It maintains the same mounting space dimensions in I-Line panelboards to ease retrofitting.
What does the "Y2" suffix indicate on the BDA24100Y2 catalog number?
The "Y2" suffix specifies the I-Line bus phase connection. For this 2-pole breaker, the "2" indicates it is factory-configured for an AC phase connection on the panelboard bus.
What wire sizes are accepted by the load-side lugs on the BDA24100Y2?
The mechanical lugs accept 14 AWG to 2/0 AWG aluminum or copper conductors. When sizing your conductors, ensure they align with the 75 degree Celsius ampacity column in the National Electrical Code (NEC) for standard 80 percent continuous loading.
Can the BDA24100Y2 be used in DC power systems?
Yes, this breaker is rated for DC applications up to 250VDC with a 10kA interrupting rating. The fixed thermal-magnetic trip elements provide reliable overload and short circuit protection for both AC and DC infrastructure.
Does the BDA24100Y2 feature dual-break contacts?
Yes, all PowerPacT B-frame circuit breakers are equipped with dual-break rotating contacts. This design reduces the amount of peak current during a short circuit fault, lowering let-through currents and enhancing downstream equipment protection.
Can the I-Line mounting bracket be removed for unit-mount applications?
No, the I-Line connectors and circuit breaker mounting bracket are integral parts of the breaker and cannot be removed or replaced. For unit-mount applications, a different PowerPacT B-frame catalog number must be sourced.
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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.