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Square D MGP36500 Molded Case Circuit Breaker
- 500A
- 3 Pole
- Unit Mount
Square D
MGP36500
Molded Case Circuit Breaker
Brand
Square D
SKU
MGP36500
Quantity
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Square D MGP36500 - 500A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for industrial power distribution, the Square D MGP36500 is a 3-pole, 500A molded case circuit breaker from the PowerPacT M-Frame series. It features an electronic trip unit that delivers precise long-time and instantaneous (LI) protection. This unit-mount MCCB installs into Square D I-Line panelboards, QED switchboards, and Model 6 motor control centers. For modern system upgrades, it is replaced by the PGL36060U31A. It delivers a 35 kAIC interrupting rating at 480VAC.Specifications
| Brand | Square D |
|---|---|
| Part Number | MGP36500 |
| Series | MGP |
| Amperage | 500A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards (HCP, HCN, HCM Main), QED Switchboards, Model 6 Motor Control Centers |
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Lugs (Load Side), Terminal Nuts (Line Side) |
| 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, Visual Trip Indicator, RoHS Compliant |
Product FAQs
5 answersCan I plug the MGP36500 directly onto an I-Line bus?
No. Although it is compatible with I-Line panelboards (such as HCP, HCN, and HCM), the MGP36500 is a unit-mount breaker. It must be hardwired and bolted in as a main breaker rather than plugged directly onto the interior bus.
Is the MGP36500 rated for 100% continuous operation?
No, the MGP36500 is a standard 80% rated circuit breaker. Continuous loads should not exceed 400A (80% of its 500A rating) in accordance with NEC guidelines.
Does the MGP36500 include ground fault protection?
No, this breaker features an LI (Long-Time, Instantaneous) electronic trip unit. It does not provide ground fault (G) or short-time (S) protection.
Can I add field-installable accessories to the MGP36500?
Yes, this PowerPacT M-frame breaker supports a wide range of field-installable accessories, including shunt trips, auxiliary switches, alarm switches, and undervoltage releases.
What is the modern replacement for the MGP36500 circuit breaker?
For modern system upgrades, the MGP36500 is typically replaced by the Square D PowerPacT P-frame equivalent, such as the PGL36060U31A. Verify panel space and mounting hardware before upgrading.
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