Square D ME36600LI Molded Case Circuit Breaker
- 600A
- 3 Pole
- I-Line
Square D
ME36600LI
Molded Case Circuit Breaker
Brand
Square D
SKU
ME36600LI
Quantity
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Square D ME36600LI - 600A 3 Pole Molded Case Circuit Breaker
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Description
Part of Square D's legacy M-Frame series, the ME36600LI delivers 600A of 3-pole circuit protection. Built for commercial and industrial applications, it features a Micrologic full-function electronic trip unit with adjustable long-time and instantaneous (LI) protection. Rated for 65kAIC at 480VAC, this breaker provides true RMS sensing for accurate coordination. It installs into Square D I-Line panelboards and switchboards. This model is replaced by the newer MJA36600.Specifications
| Brand | Square D |
|---|---|
| Part Number | ME36600LI |
| Series | ME |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 300-600A |
|---|
| 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 | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Lugs (Load Side) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | True RMS Sensing, 100% Rated, Extra High Interrupting Capacity |
Product FAQs
7 answersWhat equipment is compatible with the ME36600LI circuit breaker?
This breaker is designed exclusively for use with Square D I-Line panelboards and switchboards, utilizing a plug-on phase connection.
What wire sizes and materials are accepted by the load lugs?
The load side lugs accept up to three conductors per phase, accommodating 3/0 AWG to 500 kcmil aluminum or copper wire.
What does the LI trip function code indicate on this breaker?
The LI code means the electronic Micrologic trip unit features adjustable Long-Time and Instantaneous protection settings, allowing for precise coordination with your electrical system.
Is the trip unit on the ME36600LI interchangeable?
No. This breaker features a Micrologic non-interchangeable electronic trip unit, meaning the trip block cannot be swapped out for a different rating or function in the field.
What is the modern replacement for the legacy ME36600LI?
The ME36600LI is part of the legacy M-Frame series. It is directly replaced by the newer Square D PowerPact M-Frame series, specifically model MJA36600, for I-Line panelboard applications.
How is the ME36600LI mounted into the panel?
It uses an I-Line style plug-in connection. The line side plugs directly into the panelboard bus assembly, while the load side requires standard wire connections at the lugs.
Does this breaker provide ground fault protection?
No. The ME36600LI features a standard LI (Long-Time and Instantaneous) trip unit. It does not include the G designation required for integrated equipment ground fault protection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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1 review
- BWBrian W.Verified BuyerReviewingSquare D ME36800LI - 800A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/3/26Fast delivery!
Fast Delivery and great customer service!