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Square D MGL36400 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Square D
MGL36400
Molded Case Circuit Breaker
Brand
Square D
SKU
MGL36400
Quantity
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Square D MGL36400 - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D MGL36400 - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | MGL36400 |
| Series | MGL |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle, Lug Kits |
|---|---|
| Accessories | Lugs (AL800M23K) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, 80% Rated, True RMS Sensing, RoHS Compliant, Mercury Free, PVC Free |
Quantity
Square D MGL36400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | MGL |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle, Lug Kits |
|---|---|
| Accessories | Lugs (AL800M23K) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, 80% Rated, True RMS Sensing, RoHS Compliant, Mercury Free, PVC Free |
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Description
Designed for high-capacity commercial circuits, the Square D MGL36400 is a 3-pole, 400A MCCB from the PowerPacT M-Frame family. It incorporates a solid-state ET 1.0 trip unit providing precise LI protection via true RMS sensing. The breaker features a unit-mount design, compatible with Square D switchboards and industrial enclosures. It includes AL800M23K lugs for 3/0 AWG to 500 kcmil wire. With a 65kAIC rating at 240VAC, this MCCB ensures reliable fault clearing.Specifications
| Brand | Square D |
|---|---|
| Part Number | MGL36400 |
| Series | MGL |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 18kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Switchboards, Motor Control Centers, Enclosures |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Rotary Handle, Lug Kits |
|---|---|
| Accessories | Lugs (AL800M23K) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, 80% Rated, True RMS Sensing, RoHS Compliant, Mercury Free, PVC Free |
Product FAQs
6 answersWhat are the wire torque specifications for the lugs on the MGL36400?
The factory-installed AL800M23K lugs require a wire binding screw torque of 442.5 lb-in (50 N.m). The lug mounting screws must be torqued to 190 lb-in.
Can the long-time trip point be adjusted on the MGL36400?
No, the ET 1.0 electronic trip unit features a fixed long-time protection setting. However, the instantaneous short-circuit protection is adjustable from 2 to 10 times the nominal ampere rating.
Can the ET 1.0 trip unit be field-replaced?
No, the ET 1.0 trip unit is factory-sealed and cannot be field-replaced. It functions as a solid-state equivalent to a traditional thermal-magnetic breaker.
Is the MGL36400 rated for 80% or 100% continuous current?
This PowerPacT M-frame circuit breaker is standard-rated for 80% continuous current.
What older Square D circuit breakers does the PowerPacT M-frame replace?
The PowerPacT M-frame series is designed to replace legacy Square D MA and MH frame circuit breakers, offering improved performance in a smaller footprint.
What is the standard phase connection for this breaker?
The standard phase connection for the 3-pole MGL36400 is ABC phasing.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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1 review
- FFFredrick F.ReviewingSquare D MGL36400 - 400A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/2/21great service
very pleased with service