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Square D GJL36040 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Unit Mount
Square D
GJL36040
Molded Case Circuit Breaker
Brand
Square D
SKU
GJL36040
Quantity
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Square D GJL36040 - 40A 3 Pole Molded Case Circuit Breaker
Re-Certified
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Square D GJL36040 - 40A 3 Pole Molded Case Circuit Breaker
New
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| Brand | Square D |
|---|---|
| Part Number | GJL36040 |
| Series | GJL |
| Amperage | 40A |
| 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 GJL36040 - 40A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | GJL36040 |
| Series | GJL |
| Amperage | 40A |
| 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
The GJL36040 is a 3-pole, 40A molded case circuit breaker from the Square D PowerPacT G-Frame family. It provides reliable overcurrent protection for commercial and industrial electrical systems. This unit mount breaker installs into Square D control panels, switchboards, and enclosures. For legacy system upgrades, this model is officially replaced by the newer HJL36040 H-Frame breaker. Delivering a high interrupting capacity of 65kA at 480V, it utilizes fixed thermal-magnetic trip technology.Specifications
| Brand | Square D |
|---|---|
| Part Number | GJL36040 |
| Series | GJL |
| Amperage | 40A |
| 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
7 answersWhat is the recommended replacement for the GJL36040?
For legacy system upgrades, the GJL36040 is officially replaced by the newer HJL36040 H-Frame circuit breaker.
What does the "L" in the GJL36040 catalog number signify?
The "L" indicates the interrupting rating level for this PowerPacT G-Frame breaker. It designates a high interrupting capacity, specifically rated at 65kA at 480V and 100kA at 240V.
How does the unit-mount design of the GJL36040 differ from I-Line breakers?
As a unit-mount (feed-thru) breaker, the GJL36040 is secured with mounting screws and uses wire lugs on both the line and load sides. It does not plug onto an I-Line bussing system.
Are the factory lugs on the GJL36040 dual-rated for aluminum wire?
Yes, the standard lugs are dual-rated. They accept 8 AWG to 1/0 AWG aluminum (Al) conductors, as well as 14 AWG to 1/0 AWG copper (Cu) conductors.
What does the "LI" trip function code mean on this breaker?
The "LI" designation means the thermal-magnetic trip unit provides Long-Time (L) and Instantaneous (I) protection. The thermal element protects against gradual overloads, while the magnetic element trips instantly during a short circuit.
Can the trip settings on the GJL36040 be adjusted in the field?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time (thermal) and instantaneous (magnetic) trip points are factory-set and cannot be adjusted.
What types of equipment can the GJL36040 be installed in?
This unit-mount breaker is designed for installation in compatible Square D control panels, switchboards, and standalone enclosures that accept G-Frame feed-thru breakers.
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