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Square D GJL36050 Molded Case Circuit Breaker
- 50A
- 3 Pole
- Unit Mount
Square D
GJL36050
Molded Case Circuit Breaker
Brand
Square D
SKU
GJL36050
Quantity
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Square D GJL36050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Square D GJL36050 - 50A 3 Pole Molded Case Circuit Breaker
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| Brand | Square D |
|---|---|
| Part Number | GJL36050 |
| Series | GJL |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 18kA @ 600Y/347VAC |
| Frame Type | GJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Control Panels, Switchboards, Enclosures |
| Wire Gauge | 14-1/0 AWG (Cu), 8-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG (Cu), 8 AWG (Al) |
| 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 |
|---|---|
| Accessories | Lugs (Line & Load) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Quantity
Square D GJL36050 - 50A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | GJL36050 |
| Series | GJL |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 18kA @ 600Y/347VAC |
| Frame Type | GJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Control Panels, Switchboards, Enclosures |
| Wire Gauge | 14-1/0 AWG (Cu), 8-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG (Cu), 8 AWG (Al) |
| 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 |
|---|---|
| Accessories | Lugs (Line & Load) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
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Description
Built for heavy-duty applications, this 50A Square D PowerPacT G-Frame circuit breaker offers robust thermal-magnetic protection. It is engineered to support 3-phase commercial and industrial power systems. The unit mount configuration allows for integration into Square D control panels and switchboards. As part of an equipment migration path, this model is superseded by the HJL36050. Featuring an interrupting rating of 65kA at 480V, it ensures superior fault clearing.Specifications
| Brand | Square D |
|---|---|
| Part Number | GJL36050 |
| Series | GJL |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 18kA @ 600Y/347VAC |
| Frame Type | GJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Control Panels, Switchboards, Enclosures |
| Wire Gauge | 14-1/0 AWG (Cu), 8-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG (Cu), 8 AWG (Al) |
| 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 |
|---|---|
| Accessories | Lugs (Line & Load) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
6 answersWhat do the letters "J" and "L" indicate in the GJL36050 part number?
In the Square D PowerPacT G-frame naming convention, the "J" designates the interrupting rating tier, which provides 65kA at 480V. The "L" indicates the breaker is configured with standard mechanical lugs on both the line and load sides for unit mounting.
Can the GJL36050 be installed in a Square D I-Line panelboard?
No. This is a unit-mount breaker designed for feed-thru applications in control panels, switchboards, and standalone enclosures. It lacks the plug-on jaw connections required for I-Line panelboards.
What wire sizes are compatible with the factory lugs on this breaker?
The standard feed-thru lugs accept 14 to 1/0 AWG copper wire or 8 to 1/0 AWG aluminum wire.
Is the thermal magnetic trip unit on the GJL36050 adjustable?
No. This breaker features a fixed thermal and fixed magnetic trip unit. Both the long-time overload and instantaneous short circuit trip points are factory set and cannot be adjusted in the field.
Can this 600V-rated breaker be used on lower voltage systems?
Yes. While rated for a maximum of 600VAC, it is fully compatible with lower voltage systems such as 480V and 240V. The interrupting capacity increases at these lower voltages, providing up to 100kA of protection at 240VAC.
What does the "LI" trip function code mean for this breaker?
The "LI" designation indicates the breaker provides Long-Time (L) and Instantaneous (I) protection. Long-Time protects against sustained overloads, while Instantaneous protects against sudden short circuits.
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