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Square D BDA34090Y Molded Case Circuit Breaker
- 90A
- 3 Pole
- I-Line
Square D
BDA34090Y
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA34090Y
Quantity
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Square D BDA34090Y - 90A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial distribution, the Square D BDA34090Y provides robust thermal-magnetic protection in a compact PowerPacT B-Frame footprint. This 3-pole, 90A breaker is built for demanding electrical systems. It installs into Square D I-Line panelboards and switchboards with a factory-configured ABC phase connection. It also serves as an exact replacement for legacy FA34090 breakers. Rated 18 kAIC at 480Y/277V, it features Visi-Trip indicators and current-limiting capabilities.Specifications
| Brand | Square D |
|---|---|
| Part Number | BDA34090Y |
| Series | BDA |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC, 18kA @ 480Y/277VAC, 10kA @ 250VDC |
| Frame Type | BDA |
|---|---|
| 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 | Factory-configured for ABC-Phase connection |
| Standards | CSA C22.2 No. 5, EN/IEC 60947-2, 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, Visual Trip Indicator |
Product FAQs
7 answersWhat legacy Square D circuit breaker does the BDA34090Y replace?
The BDA34090Y serves as a direct replacement for the legacy FA34090 F-frame circuit breaker. The PowerPacT B-frame design maintains the same 1.5-inch per pole width, allowing it to fit into existing I-Line panelboards without requiring blank fillers.
What does the Y suffix indicate in the BDA34090Y catalog number?
The Y suffix designates that this PowerPacT B-frame breaker is rated for use on systems with a maximum nominal voltage of 480Y/277 VAC. It is specifically engineered for Wye systems and must not be used in 480V Delta applications.
What type of phase connection does the BDA34090Y use?
This I-Line circuit breaker is factory-configured for an ABC phase connection. It is designed to plug directly into the corresponding busbar phases within Square D I-Line panelboards and switchboards.
What wire sizes are compatible with the load lugs on the BDA34090Y?
The load-side lugs accept wire gauges from 14 AWG to 2/0 AWG. The terminals are rated for use with both aluminum and copper (Al/Cu) conductors.
Can the BDA34090Y be installed in a standard Square D load center?
No. The BDA34090Y features an I-Line style plug-in connection designed exclusively for commercial and industrial Square D I-Line panelboards and switchboards. It will not fit in QO or Homeline residential load centers.
Are the trip settings adjustable on the BDA34090Y?
No. This breaker is equipped with a fixed thermal-magnetic trip unit. Both the long-time (thermal) overload protection and instantaneous (magnetic) short-circuit protection thresholds are factory-set and cannot be adjusted in the field.
Does the BDA34090Y include a visual trip indicator?
Yes, this PowerPacT B-frame breaker features a Visi-Trip indicator. This provides a clear visual confirmation when the breaker has tripped due to an overcurrent or short-circuit event, simplifying troubleshooting in the panel.
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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.