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Schneider Electric MH36400 Molded Case Circuit Breaker
- 400A
- 3 Pole
- I-Line
Schneider Electric
MH36400
Molded Case Circuit Breaker
Brand
Schneider Electric
SKU
MH36400
Quantity
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Schneider Electric MH36400 - 400A 3 Pole Molded Case Circuit Breaker
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Schneider Electric MH36400 - 400A 3 Pole Molded Case Circuit Breaker
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| Brand | Schneider Electric |
|---|---|
| Part Number | MH36400 |
| Series | MH |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 14kA @ 250VDC |
| Frame Type | MH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NEMA, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, High Interrupting Capacity, 80% Rated |
Quantity
Schneider Electric MH36400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Schneider Electric |
|---|---|
| Part Number | MH36400 |
| Series | MH |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 14kA @ 250VDC |
| Frame Type | MH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NEMA, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, High Interrupting Capacity, 80% Rated |
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Description
Rated for 65kA at 480VAC, this robust M-Frame breaker supplies high-capacity thermal-magnetic protection for commercial power distribution. It mounts into Square D I-Line panelboards and switchboards, utilizing specialized plug-on line connections and load-side lugs. Often replaced by the modern MJA36400, this legacy model maintains original equipment compatibility. It includes an adjustable magnetic trip and the signature Visi-Trip indicator for rapid fault identification.Specifications
| Brand | Schneider Electric |
|---|---|
| Part Number | MH36400 |
| Series | MH |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 14kA @ 250VDC |
| Frame Type | MH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Al/Cu) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| 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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NEMA, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator, High Interrupting Capacity, 80% Rated |
Product FAQs
6 answersHow does the MH36400 connect to the busbar in a panel?
It uses an I-Line style plug-in connection on the line side, which snaps directly onto the busbar of Square D I-Line panelboards and switchboards, while utilizing traditional mechanical lugs on the load side.
What is the modern replacement for the legacy MH36400 breaker?
The MH36400 is a legacy thermal magnetic model that is commonly replaced by the MJA36400, which is the newer PowerPacT M-Frame equivalent featuring an electronic trip unit and the same I-Line mounting configuration.
What wire size and material do the standard load lugs accept on this 400A breaker?
The factory lugs accept up to three 3/0 AWG to 500 kcmil conductors per phase. They are rated for use with either copper or aluminum wiring.
What is the difference between the Square D MA36400 and the MH36400?
Both are 400A 3-pole legacy M-frame breakers, but the H in the MH36400 catalog number indicates a High Interrupting capacity. It is rated for 65kA at 480VAC, whereas the standard MA frame is rated lower for the same voltage.
Are the trip settings adjustable on the MH36400 circuit breaker?
The thermal long-time trip is fixed at 400A, but it features an adjustable magnetic instantaneous trip to let you fine-tune the short-circuit protection for your specific application.
Does this breaker provide equipment ground fault protection?
No, the MH36400 includes standard long-time and instantaneous (LI) trip functions. If your application requires equipment ground fault protection (LSIG), you will need a different frame or an electronic trip configuration.
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