Square D LGL36400CU33X Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Square D
LGL36400CU33X
Molded Case Circuit Breaker
Brand
Square D
SKU
LGL36400CU33X
Quantity
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Square D LGL36400CU33X - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D LGL36400CU33X - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Series | LGL |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Amperage Range | 160-400A |
|---|
| Frame Type | LGL |
|---|---|
| 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 | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 3.3S |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs (AL600LS52K3) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, HACR, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | 100% Rated, HACR Rated, Current Limiting, True RMS Sensing |
Quantity
Square D LGL36400CU33X - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | LGL |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Amperage Range | 160-400A |
|---|
| Frame Type | LGL |
|---|---|
| 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 | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 3.3S |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs (AL600LS52K3) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, HACR, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | 100% Rated, HACR Rated, Current Limiting, True RMS Sensing |
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Description
Rated for 100% continuous current, this 400A PowerPacT L-Frame breaker handles demanding industrial loads without the standard 80% derating requirement. It mounts via traditional line and load lugs, making it suitable for standalone enclosures, switchboards, and motor control centers. The integrated electronic trip unit provides adjustable long-time, short-time, and instantaneous (LSI) settings, allowing precise coordination with downstream devices and superior true RMS sensing accuracy.Specifications
| Brand | Square D |
|---|---|
| Series | LGL |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Amperage Range | 160-400A |
|---|
| Frame Type | LGL |
|---|---|
| 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 | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 3.3S |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs (AL600LS52K3) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, HACR, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | 100% Rated, HACR Rated, Current Limiting, True RMS Sensing |
Product FAQs
6 answersWhat does the "C" in the LGL36400CU33X catalog number indicate?
The "C" signifies that this circuit breaker is 100% rated for continuous current. Standard circuit breakers are typically rated for 80% continuous load.
What are the installation requirements to use the 100% continuous current rating?
To operate at 100% capacity, the breaker must be installed in a specially designed enclosure and wired with 90 degree Celsius rated conductors sized to the 75 degree Celsius ampacity column.
What protective functions can be adjusted on the LGL36400CU33X?
The integrated Micrologic 3.3 trip unit (indicated by the U33X suffix) allows field adjustments for long-time pickup, long-time delay, short-time pickup, short-time delay, and instantaneous trip settings.
Is the LGL36400CU33X compatible with Square D I-Line panelboards?
No. The LGL36400CU33X is a unit-mount breaker designed for feed-thru applications using mechanical lugs on both the line and load sides. It will not plug into an I-Line bus.
What is the I-Line equivalent for the LGL36400CU33X?
If you need to install this breaker in an I-Line switchboard, you will need catalog number LGA36400CU33X, which features an I-Line plug-on connection on the line side.
Does the LGL36400CU33X provide ground fault protection?
No. The U33X trip unit provides LSI (Long-time, Short-time, Instantaneous) protection only. For equipment ground fault protection (LSIG), you must select a breaker with a U44X or U54X trip unit suffix.
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