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Square D BGA24020Y2 Molded Case Circuit Breaker
- 20A
- 2 Pole
- I-Line
Square D
BGA24020Y2
Molded Case Circuit Breaker
Brand
Square D
SKU
BGA24020Y2
Quantity
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Square D BGA24020Y2 - 20A 2 Pole Molded Case Circuit Breaker
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Description
Built for robust commercial applications, this 2-pole, 20A molded case circuit breaker belongs to the Square D PowerPacT B-Frame lineup. It delivers dependable thermal-magnetic protection with fixed long-time and instantaneous (LI) trip functions. Designed for I-Line panelboards and switchboards, the BGA24020Y2 utilizes an AC phase connection. It acts as an exact functional replacement for legacy FA24020AC breakers, allowing facility managers to update aging infrastructure.Specifications
| Brand | Square D |
|---|---|
| Series | BGA |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 20kA @ 250VDC |
| Frame Type | BGA |
|---|---|
| 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 |
|---|---|
| Accessories | I-Line Mounting Hardware |
| 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, Double-Break Rotary Contact Structure |
Product FAQs
8 answersWhat is the direct replacement for the discontinued FA24020AC circuit breaker?
The Square D BGA24020Y2 is the direct replacement for the legacy FA24020AC. It upgrades the older F-frame to the modern PowerPacT B-frame while maintaining the same I-Line mounting and AC phase connection for seamless installation in existing panelboards.
What does the Y2 suffix indicate on the BGA24020Y2?
The Y2 suffix designates an AC phase connection. This specific configuration is required for proper phase alignment when plugging the 2-pole breaker into a Square D I-Line panelboard or switchboard.
How does the BGA24020Y2 mount into a panelboard?
This breaker features an I-Line plug-on connection. It ratchets directly onto the bus stack of a compatible Square D I-Line panelboard or switchboard and is secured with a retaining screw, eliminating the need for bolt-on bus connections.
Is the BGA24020Y2 compatible with standard QO or Homeline load centers?
No, the BGA24020Y2 is an I-Line molded case circuit breaker designed exclusively for commercial and industrial Square D I-Line panelboards and switchboards. It will not fit in residential QO or Homeline load centers.
Does the BGA24020Y2 feature adjustable trip settings?
No, this breaker utilizes a fixed thermal-magnetic trip unit. Both the long-time (overload) and instantaneous (short-circuit) trip functions are factory-set and cannot be adjusted in the field.
What type of overcurrent protection does the BGA24020Y2 provide?
It provides standard LI (Long-Time and Instantaneous) protection. The thermal element responds to sustained overloads by heating and tripping the breaker, while the magnetic element reacts immediately to high-level short circuits.
Does the BGA24020Y2 require a separate mounting hardware kit for installation?
No additional mounting hardware kit is required. The breaker features an integral shrouded I-Line plug-on jaw on the line side that connects directly to the panelboard bus, and it secures in place with a built-in retaining screw.
Can I use the BGA24020Y2 to replace a BGA24020Y4?
No. While both are 20A, 2-pole PowerPacT B-frame breakers, the Y2 suffix indicates an AC phase connection, whereas the Y4 suffix indicates a BC phase connection. You must select the breaker that matches the specific phase configuration required by your panelboard slot.
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