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Square D LEL36250LSG Molded Case Circuit Breaker

  • 250A
  • 3 Pole
  • Unit Mount
Square D LEL36250LSG
Molded Case Circuit Breaker
Brand Square D
SKU LEL36250LSG
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  • 250A
  • 3 Pole
  • Unit Mount

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Square D LEL36250LSG - 250A 3 Pole Molded Case Circuit Breaker

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$6,019.01 Check Stock

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Description

Engineered for industrial applications, the Square D LEL36250LSG is a 3-pole, 250A electronic trip circuit breaker. It utilizes microprocessor-based sensing to deliver precise overcurrent protection. This unit-mount MCCB installs into QED switchboards, Model 6 motor control centers, and individual enclosures. As a legacy L-Frame model, it is replaced by the LJL36250U63X for modern upgrades. Rated 65 kAIC at 480V, it features a Micrologic trip unit with adjustable LSIG functions.

Specifications

Key specifications
Brand Square D
Part Number LGA36400U31X-R
Series LEL
Amperage 250A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 35kA @ 600Y/347VAC, 35kA @ 600VAC
Electrical ratings
Amperage Range 125-250A
Fit and installation
Frame Type LGA
Terminal Type Lugs
For Use With Square D QED Switchboards, Model 6 Motor Control Centers, Individual Enclosures
Wire Gauge (1) 1 AWG - 600 kcmil (Al/Cu) or (2) 1 AWG - 250 kcmil (Al/Cu)
Max Wire 600 kcmil
Min Wire 1 AWG
Protection and operation
Trip Technology Electronic Trip
Trip Function Code LSIG
Trip Function Long-Time, Short-Time, Instantaneous, Ground Fault
Trip Adjustability Adjustable
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Micrologic Trip Unit
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, UL
Temp Rating 40C
Construction Features HACR Rated, True RMS Sensing, Non-Interchangeable Trip

Product FAQs

5 answers
What wire sizes are accepted by the standard lugs on the LEL36250LSG?

The standard lugs accommodate either a single 1 AWG to 600 kcmil wire or two 1 AWG to 250 kcmil wires per phase. Both aluminum and copper conductors are supported.

What protection functions are included in the LEL36250LSG electronic trip unit?

The LSIG trip unit provides adjustable Long-Time, Short-Time, Instantaneous, and Ground-Fault protection, allowing for precise coordination with other breakers in your electrical system.

Where can the LEL36250LSG circuit breaker be installed?

This breaker is designed for use in Square D QED switchboards, Model 6 Motor Control Centers, and compatible individual enclosures.

Is the LEL36250LSG part of the current Square D product line?

The LEL36250LSG belongs to the legacy Square D L-frame family. While still used for direct replacements, new applications typically utilize the modern PowerPact L-frame series.

Does the LEL36250LSG plug into an I-Line panelboard?

No, the LEL36250LSG is a unit-mount, feed-thru circuit breaker. It bolts directly to the enclosure or backpan and is not compatible with I-Line bus connections.

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