Square D LX36350 Molded Case Circuit Breaker
- 350A
- 3 Pole
- I-Line
Quantity
Square D LX36350 - 350A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for heavy-duty commercial environments, this 350-amp MCCB features solid-state LSI protection to coordinate complex electrical systems. The breaker mounts into traditional Square D I-Line panelboards using standard load-side lugs. For modern upgrades, Schneider Electric recommends substituting with the LJA36400U43X PowerPact model, utilizing an HNM1BL adapter plate and dialing the microprocessor down to 350 amps.Specifications
| Brand | Square D |
|---|---|
| Part Number | LX36350-R |
| Series | LX |
| Amperage | 350A |
| 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 | 175-350A |
|---|
| Frame Type | LX |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | (1) 1 AWG-600 kcmil or (2) 1 AWG-250 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 1 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-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 | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, True RMS Sensing, Non-Interchangeable Trip |
Product FAQs
5 answersHow does the LX36350 mount into a panelboard?
The LX36350 utilizes an I-Line style plug-in connection. Instead of bolting directly to the bus or using cables, the breaker's jaws push directly onto the I-Line bus stack in compatible Square D panelboards and switchboards, allowing for faster installation.
Can I run parallel conductors to the LX36350 lugs?
Yes, the standard lugs on the LX36350 are designed to accept parallel runs. You can terminate up to two 1 AWG to 250 kcmil conductors per phase, or a single 1 AWG to 600 kcmil conductor. The lugs are dual-rated for both aluminum and copper wire.
What does the LSI trip function on the LX36350 provide?
The electronic trip unit features LSI functions, which stand for Long-Time, Short-Time, and Instantaneous protection. This allows for adjustable overload and short-circuit settings, enabling precise coordination with other breakers in your electrical system.
Is the LX36350 a current production breaker?
No, the LX36350 is part of the legacy Square D L-frame series. While it is no longer the active current-generation frame, it remains a direct replacement for existing LX, LE, and LC I-Line breakers without requiring panel modifications.
Does the LX36350 include ground fault protection?
No, the LX36350 features an LSI (Long-Time, Short-Time, Instantaneous) trip unit, which does not include integrated equipment ground fault protection (LSIG). If ground fault protection is required by code for your application, you will need a different breaker or an external ground fault relay system.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- SDSergio D.ReviewingSquare D LXD1U7 Magnetic CoilI recommend this productRated 5 out of 5 stars12/24/21Professional
Great work got exactly what I ordered