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Square D LJA36250U33X Circuit Breaker

  • 250
  • 3 Pole
  • I-Line
Square D LJA36250U33X
Circuit Breaker
Brand Square D
SKU LJA36250U33X
Select Item Condition
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  • 250
  • 3 Pole
  • I-Line

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Square D LJA36250U33X 3 Pole Circuit Breaker

Square D LJA36250U33X 3 Pole Circuit Breaker

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$7,540.00 In Stock

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Description

Square D LJA36250U33X 3 Pole Circuit Breaker

The Square D LJA36250U33X is a 3 Pole solid state molded case circuit breaker with a current rating of 250 Amps and a voltage rating of 600VAC. It has an interrupting rating of 65kAIC at 480VAC. The LJA36250U33X has an I-Line style plug-in connection type and includes long time, short time and instantaneous trip functions.

Specifications

Key specifications
Brand Square D
Series PowerPacT L
Amperage 250 A
Poles 3
Mounting Style I-Line
Voltage 600VAC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC
Electrical ratings
Amperage Range 100-250A
Fit and installation
Frame Type L
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Square D I-Line Switchboards
Wire Gauge (1) 2 AWG - 500 kcmil (Al) or (1) 2 AWG - 600 kcmil (Cu)
Max Wire 600 kcmil
Min Wire 2 AWG
Protection and operation
Trip Technology Electronic Trip
Trip Function Code LSI
Trip Function Long-Time, Short-Time, Instantaneous
Trip Adjustability Adjustable
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Communication Module, Motor Operator
Accessories Load Side Lugs (AL400L61K3)
Standards RoHS, REACh, HACR
Approval CCC, CE, CSA, IEC, NEMA, NOM, UKCA, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Current Limiting, True RMS Sensing, Mercury Free, PVC Free, 80% Rated, Double-Break Rotary Contact Structure, Trip-Free Mechanism

Product FAQs

5 answers
Which panelboards are compatible with the LJA36250U33X?

This breaker is designed exclusively for use in Square D I-Line panelboards and I-Line switchboards. It cannot be used in standard unit-mount or drawout enclosures.

How are the line and load connections configured on the LJA36250U33X?

The line side utilizes an I-Line plug-in connection for direct bus mounting in compatible panelboards. The load side features mechanical lugs that accept one 2 AWG to 500 kcmil aluminum wire or one 2 AWG to 600 kcmil copper wire.

What does the U33X suffix indicate on this circuit breaker?

The U33X suffix specifies that the breaker is equipped with a MicroLogic 3.3S electronic trip unit. This provides adjustable Long-Time, Short-Time, and Instantaneous (LSI) trip functions for precise system coordination.

Is the LJA36250U33X rated for 80 percent or 100 percent continuous current?

This PowerPacT L-frame circuit breaker carries a standard continuous current rating of 80 percent.

What does the LJA prefix designate in the Square D catalog number?

The "L" designates the PowerPacT L-frame family, the "J" indicates the interrupting rating tier of 65kAIC at 480VAC, and the "A" specifies the I-Line plug-in mounting style.

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