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Square D MJL36700 Molded Case Circuit Breaker
- 700A
- 3 Pole
- Unit Mount
Square D
MJL36700
Molded Case Circuit Breaker
Brand
Square D
SKU
MJL36700
Quantity
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Square D MJL36700 - 700A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for demanding industrial applications, the Square D MJL36700 is a 3-pole, 700A molded case circuit breaker from the PowerPacT M-frame family. It features a unit-mount design with line and load lugs, ideal for switchboards and control panels. It also serves as a drop-in replacement for legacy MA36700 and MH36700 models. Equipped with a basic ET 1.0 electronic trip unit, it delivers accurate long-time and instantaneous (LI) protection. Rated for 65 kAIC at 480VAC.Specifications
| Brand | Square D |
|---|---|
| Part Number | MJL36700 |
| Series | MJL |
| Amperage | 700A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | M Frame |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Switchboards, Motor Control Centers, Industrial Control Panels |
| 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, Undervoltage Release, Alarm Switch, Auxiliary Switch, Handle Padlock Attachment |
|---|---|
| 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, Current Limiting, Mercury Free, PVC Free |
Product FAQs
5 answersCan the MJL36700 replace older Square D circuit breakers?
Yes, the PowerPacT M-frame series is designed to replace traditional MA and MH frame circuit breakers, such as the MA36700 and MH36700. The M-frame provides a more compact footprint while maintaining similar functionality.
What do the letters J and L signify in the MJL36700 catalog number?
The J designates the interrupting capacity level, which provides 65 kA at 480VAC. The L indicates the breaker features a unit-mount construction with factory-installed lugs on both the line and load sides.
Can the ET 1.0 electronic trip unit on the MJL36700 be swapped or replaced in the field?
No, the built-in ET 1.0 electronic trip unit cannot be field replaced. It is designed as an electronic equivalent to a thermal-magnetic breaker, featuring a fixed long-time setting and an adjustable instantaneous magnetic trip.
Is the MJL36700 compatible with Square D I-Line panelboards?
No, the MJL36700 is a unit-mount circuit breaker designed for individual chassis mounting in switchboards, motor control centers, and industrial control panels. It does not have the plug-on line connection required for I-Line panelboards.
Is the MJL36700 rated for 100 percent continuous current?
No, this circuit breaker carries a standard 80 percent continuous current rating.
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