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Schneider Electric LJA36600U43X Molded Case Circuit Breaker

  • 600A
  • 3 Pole
  • I-Line
Schneider Electric LJA36600U43X
Molded Case Circuit Breaker
Brand Schneider Electric
SKU LJA36600U43X
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  • 600A
  • 3 Pole
  • I-Line

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Schneider Electric LJA36600U43X - 600A 3 Pole Molded Case Circuit Breaker

Schneider Electric LJA36600U43X - 600A 3 Pole Molded Case Circuit Breaker

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$7,512.40 In Stock

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Description

Part of the PowerPacT L-Frame series, the Schneider Electric LJA36600U43X delivers robust electronic trip protection. This 600A, 3-pole MCCB handles demanding loads up to 600VAC. Designed for seamless integration, this unit features an I-Line mounting style that installs into Square D I-Line panelboards and switchboards. Equipped with a MicroLogic 5.3A trip unit, it offers adjustable LSI protection. It provides a 65 kAIC rating at 480V and true RMS sensing.

Specifications

Key specifications
Brand Schneider Electric
Series LJA
Amperage 600A
Poles 3
Mounting Style I-Line
Voltage 240VAC, 480VAC, 600VAC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC
Electrical ratings
Amperage Range 240-600A
Fit and installation
Frame Type L
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Square D I-Line Switchboards
Wire Gauge (2) 3/0 AWG - 500 kcmil (Al/Cu)
Max Wire 500 kcmil
Min Wire 3/0 AWG
Protection and operation
Trip Technology Electronic Trip
Trip Function Code LSI
Trip Function Long-Time, Short-Time, Instantaneous
Trip Adjustability Adjustable
Trip Unit Model MicroLogic 5.3A
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Communication Module
Accessories MicroLogic 5.3A Trip Unit
Standards CSA C22.2 No 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CCC, CE, CSA, IEC, NEMA, NOM, UL
Temp Rating -25C to 70C
Construction Features 80% Rated, Current Limiting, HACR Rated, Reverse Feed, True RMS Sensing, Visual Trip Indicator, Phase Loss Protection

Product FAQs

8 answers
What does the U43X suffix indicate on the LJA36600U43X?

The U43X suffix specifies that the breaker is equipped with a MicroLogic 5.3A (Ammeter) electronic trip unit, which provides adjustable Long-Time, Short-Time, and Instantaneous (LSI) protection.

Which panelboards are compatible with this circuit breaker?

This breaker features an I-Line mounting bracket and is specifically designed for installation in Square D I-Line panelboards and switchboards.

What wire sizes are accepted by the load-side terminals?

The mechanical lugs on the load side accept two 3/0 AWG to 500 kcmil aluminum or copper conductors per phase.

Is the LJA36600U43X rated for 80% or 100% continuous current?

This circuit breaker has a standard continuous current rating of 80%.

What is the phase connection for this I-Line breaker?

This breaker features a standard ABC phase connection for integration with I-Line busbars.

Can the LJA36600U43X be reverse fed?

No. Because it utilizes an I-Line plug-on connection for the line side and mechanical lugs for the load side, it is directional and cannot be reverse fed.

Are the trip settings on this breaker adjustable?

Yes, the integrated MicroLogic 5.3A electronic trip unit allows you to adjust the Long-Time, Short-Time, and Instantaneous (LSI) parameters to coordinate with your specific electrical system requirements.

What frame size does this breaker use?

The LJA36600U43X is built on the Schneider Electric and Square D PowerPacT L-Frame platform.

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