LH36300 - Square D - Molded Case Circuit Breaker

I-Line Style Plug-In - 300 Amp - 3 Pole - 600 Volt

LH36300 - Square D 300 Amp 3 Pole 600 Volt Molded Case Circuit Breaker

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LH36300 - Square D - Molded Case Circuit Breaker

I-Line Style Plug-In - 300 Amp - 3 Pole - 600 Volt

Regular price $8,145.00 Sale price $3,694.99 Save $4,450.01
  • New, in stock and ready to ship
  • Inventory on the way
Shipping calculated at checkout.
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  • FREE & fast shipping on orders over $49
  • 1 year warranty
  • 30 day returns


Product Specifications - LH36300 - Square D Powerpact Circuit Breaker

  • Category:

  • Connection:

    I-Line Style Plug-In
  • Type:

  • Functions:

    LI - Long-Time and Instantaneous
  • Protection:

    Thermal Magnetic
  • Frame Type:

    L Frame
  • AIC Ratings:



  • Dimensions (HxWxD):

    12.5" x 6.0" x 4.0"


CSA Approved logo

Additional Details

  • Trip Unit Technology:

  • Line Rated Current:

    300 Amp
  • Mounting Mode:

  • Breaking Capacity Code:

  • Magnetic Hold Current:

    1500 A
  • Electrical Connection:

    I-Line connection line / Lugs load

Product Description - LH36300 - Square D Powerpact Circuit Breaker

Square D, I-Line, type LH, 3P, ABC phase circuit configuration, 3PH, 300A, 600V, 35kA@480V, high interrupting capacity, i-line style plug-in, complete with LI - Long-Time and Instantaneous trip functions, thermal magnetic molded case circuit breakers.


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PDF Icon Installation Instructions

PDF Icon Data Sheet

Returns are easy

You may return items within 30 days of delivery for a refund.

View our return policy

FREE Shipping on orders over $49.

Simply Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, Simply Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

All products carry a 1-year warranty from Simply Breakers. All of our breakers are authentic and factory new.

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Customer Reviews

Based on 3 reviews
Very user friendly

I ordered a few items from Simply Breakers and the items shipped and arrived promptly. Their website is clean and very user friendly. I had some questions about my order and their customer service was outstanding. I will definitely be using Simply Breakers for my next order.

great price for these arc fault breakers

price beat the local hw stores in Ontario

Shy Buyer
Five Stars

As discribed and worked perfect!