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Square D BDA24020Y1 Molded Case Circuit Breaker
- 20A
- 2 Pole
- I-Line
Square D
BDA24020Y1
Molded Case Circuit Breaker
Brand
Square D
SKU
BDA24020Y1
Quantity
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Square D BDA24020Y1 - 20A 2 Pole Molded Case Circuit Breaker
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Description
Designed for wye systems, the BDA24020Y1 is a 20A, 2-pole molded case circuit breaker from the Square D PowerPacT B-frame lineup. It provides reliable long-time and instantaneous (LI) protection. Equipped with an I-Line mounting interface and a phase AB connection, it installs into Square D I-Line panelboards and substitutes the legacy FA24020AB breaker. Capable of 18kAIC at 480VAC, the unit is HACR rated, supports reverse feed applications, and features a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | BDA24020Y1 |
| Series | BDA |
| Amperage | 20A |
| 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, 14kA @ 600Y/347VAC, 10kA @ 250VDC |
| Frame Type | BDA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-2/0 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 AB |
| Standards | CSA C22.2 No 5, EN/IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Phase Connection AB |
Product FAQs
8 answersWhat legacy Square D circuit breaker does the BDA24020Y1 replace?
The BDA24020Y1 is the direct PowerPacT B-Frame replacement for the legacy FA24020AB molded case circuit breaker.
What does the "Y1" suffix indicate in the BDA24020Y1 catalog number?
The "Y1" suffix specifies an AB phase connection for the I-Line plug-on jaws. This ensures the 2-pole breaker connects specifically to the A and B phases on the panelboard bus.
What does the "D" in the BDA24020Y1 part number represent?
The "D" indicates the interrupting rating class of the PowerPacT B-Frame breaker. For this model, the D-class provides an 18 kA interrupting rating at 480VAC and 25 kA at 240VAC.
How is the BDA24020Y1 installed into a panelboard?
This breaker features an I-Line style plug-in connection on the line side, allowing it to snap directly onto the busbar of Square D I-Line panelboards and switchboards. The load side uses mechanical lugs for wire termination.
Is the BDA24020Y1 rated for continuous loads at 100 percent of its capacity?
No, standard PowerPacT B-frame breakers like the BDA24020Y1 are rated for continuous loading at 80 percent of their maximum 20A capacity, in accordance with standard NEC guidelines.
Does the BDA24020Y1 feature a push-to-trip button?
Yes, all PowerPacT B-Frame circuit breakers include an integral push-to-trip button on the front cover. This allows you to manually trip the breaker to verify the mechanical operation of the trip mechanism.
Is this breaker suitable for reverse feeding?
Yes, the BDA24020Y1 thermal magnetic circuit breaker is suitable for reverse feed applications.
Can I use this 2-pole breaker in a 3-phase I-Line panelboard?
Yes, this 2-pole breaker can be installed in a 3-phase I-Line panelboard. The AB phase connection will draw power specifically from the A and B phases of the busbar.
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