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Eaton / Westinghouse LD3600 Molded Case Circuit Breaker

  • 600A
  • 3 Pole
  • Unit Mount
Eaton / Westinghouse LD3600
Molded Case Circuit Breaker
Brand Eaton / Westinghouse
SKU LD3600
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  • 600A
  • 3 Pole
  • Unit Mount

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Eaton / Westinghouse LD3600 - 600A 3 Pole Molded Case Circuit Breaker

Eaton / Westinghouse LD3600 - 600A 3 Pole Molded Case Circuit Breaker

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$3,720.99 In Stock

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Description

A drop-in replacement for legacy LA3600 breakers, the Eaton LD3600 ensures continued operation of existing electrical infrastructure. This 600-amp, 3-pole molded case circuit breaker utilizes a fixed thermal-magnetic trip unit to provide essential long-time and instantaneous protection. Built for unit-mount installation, it is fully compatible with Pow-R-Line 4 panelboards and Series C motor control centers. The breaker is HACR rated and reverse feed capable for versatile deployment.

Specifications

Key specifications
Brand Eaton / Westinghouse
Part Number LD3600
Series LD
Amperage 600A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 22kA @ 250VDC
Fit and installation
Terminal Type Lugs
For Use With Eaton Series C Panelboards, Pow-R-Line 4 Panelboards, Switchboards, Motor Control Centers
Wire Gauge (2) 3/0 AWG - 350 kcmil (Al/Cu)
Max Wire 350 kcmil
Min Wire 3/0 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Line and Load Lugs Included
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed

Product FAQs

8 answers
Can the LD3600 replace a legacy Westinghouse LA3600 circuit breaker?

Yes, this unit serves as a direct replacement for obsolete Westinghouse and Cutler-Hammer LA3600 breakers. It utilizes the same L-frame footprint, allowing you to swap out the older device in existing panels and switchboards without major structural modifications.

Is the Eaton LD3600 suitable for reverse feeding applications?

Yes, this unit is reverse feed capable. Incoming line power can be safely routed to either the top or bottom terminals, providing flexibility when configuring wire routing in tight enclosures or motor control centers.

What mounting hardware is required to install this in a Pow-R-Line 4 panelboard?

To mount this L-frame breaker into an Eaton Pow-R-Line 4 panelboard, you will need a dedicated hardware kit, such as the KPRL4LD. This kit provides the required end brackets, copper conductors, and fasteners to properly secure the breaker to the panel bus.

Can I field-install internal accessories on this circuit breaker?

Yes, the Series C L-frame supports field-installable internal accessories. You can easily add components such as shunt trips, undervoltage releases, and auxiliary switches by removing the front cover and inserting them into the designated accessory pockets.

Is this breaker rated for heating, air conditioning, and refrigeration equipment?

Yes, it carries an HACR rating. This certification indicates the breaker has been tested and approved to safely handle the unique electrical demands and high inrush currents typical of HVAC and refrigeration equipment.

Can I adjust the trip settings on this unit?

No, the LD3600 utilizes a fixed thermal and fixed magnetic trip unit. The continuous current and instantaneous short-circuit pickup levels are factory-calibrated for 600A and cannot be altered in the field.

Can this breaker be used in direct current (DC) electrical systems?

Yes, it carries a UL listing for DC applications up to 250VDC with an interrupting capacity of 22kA. This makes it suitable for specific battery storage, solar, or industrial DC control panel deployments.

How many conductors can the standard line and load lugs accept?

The standard pressure lugs included with this breaker are dual-rated for aluminum and copper wire. Each phase terminal is designed to accept two conductors ranging from 3/0 AWG to 350 kcmil.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 1 review
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
1 review
  • MB
    Mike B.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer LD3500 - 500A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/13/26
    Superbreakers Delivered

    Had an issue where we needed a large molded case breaker ASAP as a large customer was down without power. James with superbreakers absolutely delivered, he found what was needed and got it to us the very next day. Fantastic customer service and business.