Square D LA36400S1021 Circuit Breaker 600VAC

The Square D LA36400S1021 Circuit Breaker is a 400 Amp air circuit breaker (ACB) designed for high-performance protection in commercial and industrial applications. Rated for 600VAC, this 3-pole circuit breaker offers superior protection against overloads, short circuits, and ground faults in electrical systems. With its robust construction and innovative design, the LA36400S1021 ensures reliable operation, helping to prevent equipment damage and electrical hazards. Ideal for medium- to large-scale applications, this Square D ACB is a reliable solution for your electrical system's protection needs.

Key Features:

• 400 Amp, 3-Pole Circuit Breaker: Capable of handling up to 400 Amps, designed for 600VAC systems, offering high-capacity protection for demanding electrical installations.
• Air Circuit Breaker (ACB): Features an air-based interruption system, providing high reliability and fault protection in commercial and industrial settings.
• Advanced Protection: Provides protection against overloads, short circuits, and ground faults, ensuring the safety of both the electrical system and connected equipment.
• High Interrupting Capacity: Designed to safely interrupt large fault currents, helping to safeguard your system from damage during power surges or short-circuit conditions.
• Compact and Durable Design: Built to last, the LA36400S1021 offers long-term reliability and can withstand harsh industrial environments.
• Easy Installation and Maintenance: Designed for efficient installation and straightforward maintenance, reducing downtime and service costs.
• UL Listed: Meets Underwriters Laboratories (UL) standards for safety and performance, ensuring top-tier reliability and compliance.
• Versatile Application: Suitable for industrial, commercial, and utility applications, including motor control centers (MCCs), distribution boards, and panel boards.

We ship orders Monday through Friday, excluding holidays. Most in-stock items are processed and shipped within 1–2 business days. Once your order ships, you’ll receive tracking information via email.

Standard Shipping: 2–5 business days (carrier: USPS, UPS, or FedEx depending on item size and destination)

Expedited Shipping: Available upon request. Contact us before ordering.

Freight Shipping: Larger or palletized orders may ship via LTL freight. We’ll contact you directly for delivery coordination.

Shipping Rates:
Shipping costs are calculated at checkout based on weight, dimensions, and destination. For bulk orders or local pickups, please contact us for custom shipping options.

New Products are covered by a 90 Day Warranty. Used Products are sold as is.

   Returns are accepted within 30 days of delivery.
    •    Items (new or used) must be in the same condition as received and include original packaging when possible.
    •    A receipt or proof of purchase is required.
    •    Buyer is responsible for return shipping unless the item is defective or not as described.

 A 20% restocking fee applies to all returns not due to defects or listing errors (e.g., ordered by mistake, no longer needed).
    •    This fee will be deducted from the refund total.