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Square D BDA24090Y4 Molded Case Circuit Breaker
- 90A
- 2 Pole
- I-Line
Square D
BDA24090Y4
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA24090Y4
Quantity
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Square D BDA24090Y4 - 90A 2 Pole Molded Case Circuit Breaker
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Description
Delivering 18kAIC of interrupting capacity at 480VAC, this 90A Square D PowerPacT MCCB provides essential thermal-magnetic protection for heavy-duty commercial environments. Equipped with a BC phase connection, the breaker mounts into Square D I-Line switchboards and panelboards. It acts as an exact functional replacement for older FA24090 models. The unit features a trip-free mechanism and current-limiting capabilities to enhance system safety and reliability.Specifications
| Brand | Square D |
|---|---|
| Series | BDA |
| Amperage | 90A |
| 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 | B |
|---|---|
| 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 |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch, Padlock Attachment, Rotary Handle |
|---|---|
| Accessories | BC Phase Connection |
| 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, 80% Rated, Reverse Feed, Trip-Free Mechanism, Quick-Make/Quick-Break, Non-Interchangeable Trip |
Product FAQs
7 answersWhat type of panelboards will the BDA24090Y4 fit into?
The BDA24090Y4 is an I-Line molded case circuit breaker designed exclusively for use in Square D I-Line panelboards and switchboards. It utilizes a plug-on mounting bracket and jaw assembly and will not fit in standard load centers or NQ/NF panelboards.
What does the Y4 suffix indicate on the BDA24090Y4?
For Square D PowerPacT 2-pole I-Line breakers, the Y4 suffix designates a BC phase connection. This dictates which specific bus bars the breaker jaws will engage when plugged into the panelboard stack.
Is the BDA24090Y4 a direct replacement for older Square D breakers?
Yes, the PowerPacT B-Frame series is the modern upgrade and direct replacement for legacy Square D FA-Frame circuit breakers. This model can replace older 90A, 2-pole FA-Frame I-Line breakers, such as the FA24090, that utilize a BC phase connection.
What wire sizes and materials are compatible with the BDA24090Y4 terminals?
The factory-installed lugs on this breaker are dual-rated for both aluminum and copper conductors, accepting wire sizes from 14 AWG up to 2/0 AWG.
What are the DC voltage and interrupting ratings for this breaker?
In addition to its standard AC ratings, the BDA24090Y4 is rated for direct current applications, providing an interrupting capacity of 10kA at 250VDC.
Are the trip settings adjustable on the BDA24090Y4?
No, this breaker features a thermal-magnetic trip unit with fixed long-time and instantaneous (LI) trip functions. The overcurrent and short-circuit trip thresholds cannot be adjusted in the field.
Does the BDA24090Y4 provide current-limiting protection?
Yes, the PowerPacT B-Frame series features a trip-free mechanism and current-limiting capabilities to quickly clear faults, reducing let-through energy and enhancing the safety of the electrical distribution system.
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