Designed for commercial and industrial facilities, this 100A legacy L-Frame molded case circuit breaker provides reliable power distribution. It features an I-Line mounting style, allowing it to integrate seamlessly into compatible Square D panelboards and switchboards. The integrated Micrologic electronic trip unit delivers adjustable long-time, short-time, and instantaneous (LSI) protection. Note that this model is often replaced by newer PowerPacT L-Frame breakers using an I-Line filler.
True RMS Sensing, Non-Interchangeable Trip, High Interrupting Capacity
Product FAQs
8 answers
What type of panelboards are compatible with the LX36100?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection for quick installation onto the bus assembly.
Can I use this breaker in a standard QO or Homeline load center?
No. The LX36100 features an I-Line plug-in mounting style and is strictly compatible with commercial I-Line panelboards and switchboards. It will not fit in residential QO or Homeline enclosures.
What wire sizes and materials are accepted by the lugs on this breaker?
The terminal lugs accept either one 1 AWG to 600 kcmil conductor, or two 1 AWG to 250 kcmil conductors. Both aluminum and copper wire are supported.
What does the LSI designation mean on the LX36100 trip unit?
LSI indicates the electronic trip unit includes adjustable Long-time, Short-time, and Instantaneous protection functions. This allows for precise coordination with other breakers in your electrical system.
How does the electronic trip unit differ from a standard thermal-magnetic breaker?
Unlike fixed thermal-magnetic breakers, the electronic trip unit on this model provides adjustable trip settings. This delivers higher accuracy and better repeatability for complex commercial or industrial loads.
Is the LX36100 a current production model?
The LX frame is classified as a legacy molded case circuit breaker. While it is no longer the primary active series, it remains a direct replacement for existing I-Line installations requiring a 100A LX frame.
Does this breaker require a separate mounting hardware kit?
No, the I-Line plug-in connection design means the breaker snaps directly into the bus assembly of an I-Line panelboard without requiring separate bolt-on mounting kits.
What precautions should be taken before installing this I-Line breaker?
Installation should only be performed by a qualified electrician. Ensure the panelboard is fully de-energized before attempting to seat the plug-in jaws onto the busbars to prevent arc flash hazards.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.