Square D MHL361000 Molded Case Circuit Breaker
- 1000A
- 3 Pole
- Unit Mount
Quantity
Square D MHL361000 - 1000A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D MHL361000 - 1000A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | MHL361000 |
| Series | MHL |
| Amperage | 1000A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 50kA @ 250VDC |
| Frame Type | MHL |
|---|---|
| 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 | 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 | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Quantity
Square D MHL361000 - 1000A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | MHL361000-R |
| Series | MHL |
| Amperage | 1000A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 50kA @ 250VDC |
| Frame Type | MHL |
|---|---|
| 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 | 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 | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Description
Engineered for demanding industrial environments, this 1000A MCCB delivers high interrupting capacity and thermal-magnetic LI protection. Part of the legacy M-Frame series, the MHL361000 features a non-interchangeable trip unit to handle severe overloads. Designed for unit mounting, it integrates into Square D switchboards, motor control centers, and standalone enclosures. This legacy breaker maintains existing infrastructure and is replaced by the PowerPact PJL36100U31A. It is fully HACR rated.Specifications
| Brand | Square D |
|---|---|
| Part Number | MHL361000 |
| Series | MHL |
| Amperage | 1000A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 50kA @ 250VDC |
| Frame Type | MHL |
|---|---|
| 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 | 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 | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
6 answersWhat type of enclosures and equipment are compatible with the MHL361000?
As a unit-mount M-Frame breaker, it is designed for installation in Square D switchboards, motor control centers, and standalone commercial enclosures. It features a feed-thru connection bolted directly to the equipment bus or mounting pan.
What are the conductor capacity and terminal requirements for this breaker?
The standard lug configuration accommodates three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase. Ensuring properly torqued connections is critical for supporting large-scale power distribution circuits.
How does the LI trip unit on this breaker operate?
The thermal-magnetic trip unit provides Long-Time and Instantaneous (LI) protection. The thermal element offers fixed overload protection, while the magnetic instantaneous trip is adjustable, allowing electricians to fine-tune the short-circuit response based on specific fault current calculations.
Can the MHL361000 be utilized in DC power systems?
Yes. It is fully rated for direct current applications up to 250VDC with a 50kA interrupting capacity. This makes it viable for high-capacity industrial DC motor circuits and specialized heavy-duty switchgear.
Is the MHL361000 still an actively manufactured frame size?
The MHL series is a legacy M-Frame breaker. When replacing existing infrastructure, the MHL361000 serves as an exact dimensional match. For totally new installations, Schneider Electric has superseded it with the PowerPact PJL36100U31A, which may require busbar or enclosure modifications if used as a retrofit.
Is this breaker certified for HVAC applications?
Yes, it is fully HACR rated. This certification verifies that the breaker can safely handle the specialized operational demands and inrush currents associated with heating, air conditioning, and refrigeration motor equipment.
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