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Square D LJL36600U31X Molded Case Circuit Breaker
- 600A
- 3 Pole
- Unit Mount
Square D
LJL36600U31X
Molded Case Circuit Breaker
Brand
Square D
SKU
LJL36600U31X
Quantity
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Square D LJL36600U31X - 600A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D LJL36600U31X - 600A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | LJL36600U31X |
| Series | LJL |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 200-600A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | (2) 2/0 AWG-500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 2/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | MicroLogic 3.3 Trip Unit (Factory Installed) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL, UKCA |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, True RMS Sensing, Visual Trip Indicator, 80% Rated |
Quantity
Square D LJL36600U31X - 600A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | LJL |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 200-600A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | (2) 2/0 AWG-500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 2/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | MicroLogic 3.3 Trip Unit (Factory Installed) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL, UKCA |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, True RMS Sensing, Visual Trip Indicator, 80% Rated |
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Description
Engineered for high-capacity power systems, the Square D LJL36600U31X 600A, 3-pole PowerPacT L-Frame molded case circuit breaker delivers reliable distribution for heavy commercial applications. This unit-mount breaker includes factory-installed lugs, making it ready to integrate into Square D switchboards and enclosures. It features a MicroLogic 3.3 electronic trip unit with adjustable LI settings. The breaker provides a 65kAIC rating at 480V and true RMS sensing.Specifications
| Brand | Square D |
|---|---|
| Part Number | LJL36600U31X |
| Series | LJL |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 200-600A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | (2) 2/0 AWG-500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 2/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | MicroLogic 3.3 Trip Unit (Factory Installed) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL, UKCA |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, True RMS Sensing, Visual Trip Indicator, 80% Rated |
Product FAQs
8 answersWhat does the U31X suffix indicate on the LJL36600U31X?
The U31X suffix specifies that this breaker is equipped with a MicroLogic 3.3 electronic trip unit. This unit provides adjustable Long-Time and Instantaneous (LI) protection settings.
What are the lug wire capacity and torque requirements for the LJL36600U31X?
The factory-installed line and load lugs accept two 2/0 AWG to 500 kcmil aluminum or copper conductors per phase. The lugs must be torqued to 442 lb-in (50 N.m) for a secure connection.
Can the LJL36600U31X be used in an I-Line panelboard?
No, this is a unit-mount circuit breaker meant for base mounting in enclosures, switchboards, or motor control centers. It does not have the plug-on jaws required for an I-Line panelboard.
Is the LJL36600U31X rated for 100 percent continuous load?
No, this model carries a standard 80 percent continuous current rating. It is not approved to carry its full 600A rating continuously for periods longer than three hours.
What is the replacement lug kit part number for the LJL36600U31X?
The compatible mechanical lug kit is part number AL600LS52K3. This kit includes three lugs that each accept two 2/0 AWG to 500 kcmil aluminum or copper wires.
What is the UPC for the LJL36600U31X breaker?
The 12-digit UPC for this Square D PowerPacT L-frame breaker is 785901891635.
How do you adjust the trip settings on this circuit breaker?
The MicroLogic 3.3 trip unit features rotary adjustment dials on the front face. These allow a qualified electrician to set the Long-Time pickup and Instantaneous pickup to match the findings of an electrical coordination study.
Does the LJL36600U31X feature a mechanical test button?
Yes, the breaker includes an integral push-to-trip button on the front cover. This allows electricians to mechanically trip the breaker to verify the operating mechanism is functioning freely.
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