SQUARE D LA400S Circuit Breaker Enclosure

( Brand: Square D ), ( Mounting Style: Panel ), ( Type: Mhc ), ( Color: Gray ), ( Manufacturer Part Number: LA400S )

Review SQUARE D Squarela400s Circuit Breaker Enclosure Type

The Square D LA400S Circuit Breaker Enclosure is a versatile and robust solution designed for the installation and protection of circuit breakers in various electrical applications. This enclosure is engineered to provide superior electrical performance and mechanical durability, making it an ideal choice for commercial and industrial environments.

The LA400S is a single-phase, metal-clad type enclosure, suitable for use with Square D QO, Homeline, and BR series circuit breakers with ratings up to 200 amperes. The enclosure measures 15 inches in width, 8.5 inches in height, and 6 inches in depth, providing ample space for the installation of circuit breakers and other electrical components.

The Square D LA400S Circuit Breaker Enclosure is constructed of heavy-gauge, steel material, ensuring long-lasting durability and resistance to impact and corrosion. The enclosure features a hinged, removable door for easy access to the interior components, with a lockable handle for added security. The door is designed with a clear, tempered glass window, enabling users to visually inspect the circuit breakers and their status indicators.

The metal-clad design of the LA400S enclosure offers numerous advantages, including reduced installation time, improved safety, and simplified maintenance. The enclosure's front bus bars are factory-installed and pre-wired, eliminating the need for on-site bus bar fabrication and reducing the risk of electrical errors. The enclosure also features removable, adjustable mounting brackets for easy installation of the circuit breakers and other components.

The Square D LA400S Circuit Breaker Enclosure is designed to meet or exceed the requirements of UL 516D, UL 1077, and UL 1699 safety standards, ensuring reliable and safe operation in various electrical applications. The enclosure is also suitable for use in environments with Class I, Division 2 hazardous locations, providing an additional level of safety and versatility.

In summary, the Square D LA400S Circuit Breaker Enclosure is a high-performance, durable, and versatile solution for the installation and protection of circuit breakers in commercial and industrial applications. With its easy access, metal-clad design, and robust construction, the LA400S enclosure offers numerous advantages for electrical contractors, facility managers, and others responsible for the installation, operation, and maintenance of electrical systems.

The Square D LA400S circuit breaker enclosure is a popular choice for electrical installations due to its durability and versatility. However, like any other electrical component, it has its advantages and disadvantages.

1. Rugged Construction: The LA400S enclosure is known for its tough build. It is made of die-cast aluminum, which makes it resistant to corrosion and impact damage.

2. Multiple Mounting Options: This enclosure can be mounted on a wall or in a cabinet, making it suitable for various installation environments.

3. Easy Installation: The LA400S comes with a screw-bus system, which simplifies the wiring process and saves installation time.

4. UL Listed: This enclosure is UL listed, ensuring that it meets the safety and performance standards set by Underwriters Laboratories.

5. Compatibility: The LA400S can accommodate a wide range of circuit breakers, making it a versatile option for different electrical applications.

1. Cost: Compared to some other circuit breaker enclosures in the market, the LA400S can be relatively expensive.

2. Size: The LA400S is a larger enclosure, which may require more space for installation.

3. Limited Ventilation: The enclosure has limited ventilation, which may not be ideal for installations in environments with high ambient temperatures or high electrical loads.

In conclusion, the Square D LA400S circuit breaker enclosure offers several advantages, including rugged construction, multiple mounting options, easy installation, UL listing, and compatibility. However, it also has some disadvantages, such as cost, size, and limited ventilation.

Based on the information provided, it is recommended that the Square D LA400S circuit breaker enclosure be considered for installations where durability, versatility, and safety are top priorities. If cost or size is a significant concern, other options may be worth exploring. Ultimately, the decision to purchase the LA400S should be based on the specific requirements of the electrical application.

Details:

LA400R - Square3-Pole Circuit Breaker Enclosure, 125-400A 600V, LAL/LHL/Q4L/K.

part #: la400s prices

• $274.99-$499.99

specifications breakercoon:

• brand: Square D
• mounting style: Panel
• type: Mhc
• color: Gray
• manufacturer part number: LA400S

payments breakercoon:

• credit card: Discover
• wallet: Paypal
• other

offer breakercoon:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• started: December 4, 2025

seller breakercoon:

• city: Los Angeles, California
• rating: 99.2%
• # reviews: 10458

returns breakercoon:

• paid by: Buyer
• time: 30 Days
• method: Money back
• policy: Returns Accepted

shipping breakercoon:

• service: Standard
• class: Standard
• transit: 2-6 Days
• cost: $25.00
• type: Fixed

general breakercoon:

• Electrical Supplies > Electrical Panels, Boxes Circuit Breakers > Circuit Breakers
• condition: New

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