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Square D FGA34050 Molded Case Circuit Breaker
- 50A
- 3 Pole
- I-Line
Square D
FGA34050
Molded Case Circuit Breaker
Brand
Square D
SKU
FGA34050
Quantity
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Square D FGA34050 - 50A 3 Pole Molded Case Circuit Breaker
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Square D FGA34050 - 50A 3 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | FGA34050-R |
| Series | FGA |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Quantity
Square D FGA34050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FGA34050-R |
| Series | FGA |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Designed for heavy-duty power distribution, the FGA34050 is a 3-pole, 50A molded case circuit breaker. It features thermal-magnetic trip units providing fixed long-time and instantaneous (LI) protection for commercial systems. This model plugs into Square D I-Line panelboards. When replacing this unit with the newer HGA36050, be aware that the H-Frame substitute requires 4.5 inches of mounting space compared to the 3-inch width of this F-Frame breaker.Specifications
| Brand | Square D |
|---|---|
| Part Number | FGA34050-R |
| Series | FGA |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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 | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersWhat panelboards are compatible with the FGA34050 circuit breaker?
The FGA34050 is designed exclusively for use in Square D I-Line power distribution panelboards and switchboards. It features a plug-on I-Line connection that engages directly with the panel bus stack.
What is the modern replacement for the legacy FGA34050 breaker?
The direct modern replacement is the Square D PowerPact H-frame HGA36050. However, note that the legacy F-frame requires 3 inches of mounting space (1 inch per pole), while the newer H-frame I-Line breaker requires 4.5 inches of mounting space (1.5 inches per pole) on the bus.
How does the FGA34050 mount into the panelboard?
It utilizes the Square D I-Line plug-on mounting system. The breaker jaws engage directly onto the I-Line bus stack, and it is secured with a mounting bracket and screw. This allows for installation without the need for separate cable connections to the bus.
Does the FGA34050 feature an adjustable trip unit?
No, this legacy F-frame breaker uses a thermal-magnetic trip unit with fixed long-time (thermal) and fixed instantaneous (magnetic) trip functions. It does not offer adjustable dials for fine-tuning the trip curve.
What wire sizes are accepted by the FGA34050 lugs?
The standard load-side lugs accept copper or aluminum wire ranging from 14 AWG to 1/0 AWG. Ensure proper torque specifications are followed during installation as outlined by Schneider Electric.
Can the FGA34050 be locked out for maintenance?
Yes, the breaker supports a padlock attachment accessory that allows the handle to be locked in the OFF position, ensuring compliance with standard lockout/tagout (LOTO) safety procedures.
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