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Square D MH36500 Molded Case Circuit Breaker
- 500A
- 3 Pole
- I-Line
Square D
MH36500
Molded Case Circuit Breaker
Brand
Square D
SKU
MH36500
Quantity
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Square D MH36500 - 500A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D MH36500 - 500A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | MH36500 |
| Series | MH |
| Amperage | 500A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 25kA @ 600VAC, 14kA @ 250VDC |
| Frame Type | MH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, 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 | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator |
Quantity
Square D MH36500 - 500A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | MH36500-R |
| Series | MH |
| Amperage | 500A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 25kA @ 600VAC, 14kA @ 250VDC |
| Frame Type | MH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, 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 | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator |
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Description
Built for commercial power distribution, this 500A, 3-pole legacy M-frame molded case circuit breaker handles demanding electrical loads. The Square D MH36500 ensures reliable performance in heavy-duty environments. Designed with an I-Line plug-in connection, it mounts into Square D I-Line panelboards and switchboards. For modern upgrades, this unit is replaced by the PowerPact MJA36500 series. It features a thermal-magnetic trip unit (LI) providing a 65kAIC rating at 480VAC.Specifications
| Brand | Square D |
|---|---|
| Part Number | MH36500 |
| Series | MH |
| Amperage | 500A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 25kA @ 600VAC, 14kA @ 250VDC |
| Frame Type | MH |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, 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 | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Visual Trip Indicator |
Product FAQs
6 answersWhat panelboards are compatible with the MH36500?
This I-Line style plug-in breaker is designed exclusively for Square D I-Line panelboards and switchboards. It is not a bolt-on device and will not mount in standard load centers or panelboards.
Is the MH36500 obsolete, and what is the modern replacement?
Yes, the legacy M-frame MH36500 has been superseded by the Square D PowerPacT M-frame series. The direct modern replacement is the MJA36500, which offers the same 500A rating, I-Line plug-in mounting, and 65kAIC at 480VAC.
What does the H in the MH36500 catalog number signify?
The H indicates a High interrupting rating. While standard MA breakers have lower fault tolerances, the MH frame provides up to 65kAIC at 480VAC to safely clear severe faults in high-demand industrial applications.
What size wire do the factory lugs on the MH36500 accept?
The standard mechanical lugs accept three 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.
Are the trip settings on the MH36500 adjustable?
It features a thermal-magnetic trip unit with fixed thermal protection for overloads and an adjustable magnetic trip. This allows you to customize the instantaneous short-circuit response based on your specific equipment inrush current.
What does the LI trip function code mean on this breaker?
LI stands for Long-Time and Instantaneous trip functions. Long-Time provides delayed thermal protection against sustained overloads, while Instantaneous provides immediate magnetic protection against short circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 4 reviews.
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
4 reviews
- DLDeanna L.Verified BuyerReviewingSquare D MH36800 - 800A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/11/26Square D MH36800 - 800A 3 Pole Molded Case Circuit Breaker
Another satisfied customer.
- SBSteve B.Verified BuyerReviewingSquare D MH36600 - 600A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/23/26Square MH36600
Breaker was as advertised excellent condition
- SAStewart A.ReviewingSquare D MH38 Panel Board EnclosureI recommend this productRated 5 out of 5 stars3/25/19not at local supply
got what I needed, because it was not available at my local supply house.
- WWWilliam W.ReviewingSquare D MH32 Panel Board EnclosureI recommend this productRated 5 out of 5 stars7/1/18INSIDE THE BOX
Great Buy ! Shipped on time. No Damage. Just what we ordered Thanks