Free Shipping Over $99
Square D LE36250LI Molded Case Circuit Breaker
- 250A
- 3 Pole
- I-Line
Square D
LE36250LI
Molded Case Circuit Breaker
Brand
Square D
SKU
LE36250LI
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D LE36250LI - 250A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Similar Items
200A 3 Pole Molded Case Circuit Breaker
600A 3 Pole Molded Case Circuit Breaker
250A 3 Pole Molded Case Circuit Breaker
Description
The LE36250LI is a 3-pole, 250A molded case circuit breaker from Square D's legacy L-Frame series. Built for commercial and industrial applications, it provides reliable overcurrent protection. Designed with an I-Line mounting style, this breaker installs into Square D I-Line panelboards. As a legacy component, it is replaced by the LLA36250U31X (requires HNM1BL filler). It features a Micrologic trip unit with adjustable LI settings, true RMS sensing, and a 65 kAIC rating at 480VAC.Specifications
| Brand | Square D |
|---|---|
| Part Number | LE36250LI |
| Series | LE |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 35kA @ 600Y/347VAC, 35kA @ 600VAC |
| Amperage Range | 125-250A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 2 AWG - 500 kcmil (Al) or 2 AWG - 600 kcmil (Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 2 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Micrologic Series B Trip Unit, Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | -5C to 60C |
| Construction Features | HACR Rated, True RMS Sensing, High Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
7 answersWhich panelboards accept the Square D LE36250LI circuit breaker?
This breaker is built specifically for Square D I-Line panelboards and switchboards. It utilizes the proprietary I-Line plug-on connection, which ratchets directly onto the bus stack for a secure, maintenance-free line connection.
What protection functions are included in the LE36250LI electronic trip unit?
The LI designation means this Micrologic trip unit provides adjustable Long-Time (L) and Instantaneous (I) trip functions. This allows panel builders to fine-tune the overcurrent and short-circuit response curves to coordinate with other devices in the distribution system.
What is the modern replacement for the legacy LE36250LI breaker?
The LE frame is a legacy product. The current replacement is the Square D PowerPact L-Frame series, specifically models like the LLA36250U31X. When retrofitting a PowerPact L-Frame into an older I-Line panel, you may need a blank filler plate (such as the HNM1BL) to cover the difference in physical dimensions.
What are the acceptable wire sizes for the LE36250LI terminals?
The factory-installed lugs accommodate a wide range of conductors, accepting 2 AWG to 500 kcmil aluminum wire or 2 AWG to 600 kcmil copper wire. Always torque the lugs to the manufacturer specifications printed on the breaker faceplate.
Can I install the LE36250LI in a reverse-fed application?
No. Breakers with electronic trip units are typically marked with specific line and load terminals and are not suitable for reverse feeding. Additionally, the I-Line plug-on design inherently dictates the line side connection at the bus.
Does the LE36250LI require a separate mounting bracket for installation?
No. Because it features an I-Line style plug-in connection, the breaker mounts directly to the interior bus assembly of an I-Line panelboard. The mounting jaws are built into the breaker, eliminating the need for separate mounting hardware or cable connections on the line side.
Does the LE36250LI include ground fault protection?
No. The LI trip unit only provides Long-Time and Instantaneous protection. If your application requires equipment ground fault protection, you will need a breaker with an LSIG or LIG trip unit instead.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.