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LDA36400U31X – Square D – Molded Case Circuit Breaker I-Line Plug-In – 400 Amp – 3 Pole – 600 Volt

SKU: LDA36400U31X Categories: ,



The Square D LDA36400U31X is a 3 Pole solid state molded case circuit breaker with a current rating of 400 Amps and a voltage rating of 600V. It has an interrupting rating of 18kA@480V. The LDA36400U31X has an I-Line style plug-in connection type and includes LI – long-time and instantaneous trip functions.


Type Thermal Magnetic- Electronic- Standard- Micrologic 3.3- LI
Voltage Rating 600 Volt AC- 250 Volt DC
Current Rating 400 Amp
Number of Poles 3
Interrupting Rating 14 Kiloamp at 600 Volt AC- 18 Kiloamp at 250 Volt DC
Application Power Distribution
Used On I-Line Panelboard And Switchboard
Approval UL- CSA
Model LD
Additional Information RoHS/REACH Compliant- Overall Dimension 5.51 Inch Width x 4.33 Inch Depth x 13.39 Inch Height- Frame Type L- Terminal Type I-Line Connection Line Lug Load- Control Type Toggle- Terminal Wire Size 3/0 AWG to 500 KCMIL (Copper/Aluminum)- Continuous Current Rating 80 Percent- Phase Connection Type ABC- Operation Ambient Air Temperature Rating 28 to 158 Deg F- Applicable Standard NOM
Features/Benefits Returnable- RoHS/REACH Compliant- Mercury-Free- PVC-Free- Halogen-Free- Green Premium Product

Shipping information

Free Shipping Policy
Parcel shipments with item value over $200.00 qualify for free economy shipping within the continental US. Please indicate at checkout if USPS or UPS is a required shipment method. We do not charge a handling fee or require a minimum amount on any order. Breakers & Controls Florida does not ship on customer accounts.

Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances Breakers & Controls Florida may reserve up to 5 business days to consolidate orders for complete shipment.

Warranty information

At Breakers & Controls Florida, we stand behind the quality and reliability of our products. We understand that purchasing used and obsolete breakers and controls requires confidence in their performance. Therefore, we have established the following warranty policy to ensure your satisfaction:

  1. Limited Warranty: All used and obsolete breakers and controls purchased from [Company Name] are covered by a limited warranty. This warranty guarantees that the products will be free from defects in material and workmanship under normal use and service for a specified period from the date of purchase.
  2. Warranty Period: The warranty period for used and obsolete breakers and controls may vary depending on the specific product and its condition at the time of purchase. The warranty duration will be clearly stated on the product listing or accompanying documentation. Please review the product description or contact our customer support team for the warranty period applicable to your purchase.
  3. Warranty Coverage: Our warranty covers the repair or replacement of defective parts or products at our discretion. If a covered product is found to be defective within the warranty period, we will either repair the product, replace it with an equivalent item, or provide a refund, depending on the availability of the specific product and the customer’s preference.

Additional information

Weight 12 lbs




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