Square D ME36400LI Molded Case Circuit Breaker
- 400A
- 3 Pole
- I-Line
Quantity
Square D ME36400LI - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built to protect circuits against overloads and short circuits, the Square D ME36400LI is a 3-pole molded case circuit breaker rated for 400A and 600VAC. Its interrupting ratings are 65kA at 240VAC, 65kA at 480VAC and 25kA at 600VAC. This ME series breaker uses I-Line mounting. The electronic trip provides long-time and instantaneous protection through its LI trip function.Specifications
| Brand | Square D |
|---|---|
| Part Number | ME36400LI |
| Series | ME |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | M |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | (3) 3/0 AWG - 500 kcmil (Cu/Al) |
| 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 | Alarm Switch, Auxiliary Switch, Shunt Trip, Undervoltage Release |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, True RMS Sensing |
Product FAQs
6 answersHow should I use the 400A rating when selecting the Square D ME36400LI?
The 400A rated current is the basis for selecting this breaker for the circuit load and conductor protection. Coordinate that rating with conductor ampacity and applicable installation requirements.
Can I use this breaker on a 600VAC circuit?
The breaker is rated for 600VAC. At that voltage, its interrupting rating is 25kA, so selection must account for both circuit voltage and available fault current.
How does the interrupting rating affect breaker selection?
The interrupting rating is 65kA at 240VAC, 65kA at 480VAC and 25kA at 600VAC. Use the rating for your circuit voltage and verify that it meets or exceeds the available fault current at the installation point.
What protection does the electronic LI trip function offer?
LI means long-time and instantaneous protection. Long-time protection responds to sustained overloads, while instantaneous protection responds to high fault currents without an intentional delay. The electronic trip evaluates current to initiate those protective actions.
What does the I-Line plug-in connection mean for installation?
The breaker uses I-Line mounting with I-Line style plug-in terminal connections. The plug-in interface makes electrical contact as the breaker is mounted, so correct seating and securing are important installation steps.
How does the three-pole configuration guide circuit planning?
The Square D ME36400LI has three poles for its three-phase configuration. Plan the circuit connections with one phase conductor per pole.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 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!