Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Flush Mounting - L-Frame Square D Circuit Breaker Enclosures
SQUARE DL-Frame Square D Circuit Breaker Enclosures

SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Flush Mounting

The SQUARE D LA400F is an L-Frame Square D circuit breaker enclosure designed for indoor use. It features 3 spaces, a 400 A amp rating, and a flush mounting style. This enclosure is compatible with Square D LAL and…

SKU 3G-OTH-23155

Brand
SQUARE D
Item
Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Flush Mounting
Category
L-Frame Square D Circuit Breaker Enclosures
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SQUARE D
Manufacturer Part Number
LA400F
Location
Indoor
For Use With
Square D LAL and LHL Circuit Breakers
Mounting Style
Flush
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D LA400F is an L-Frame Square D circuit breaker enclosure designed for indoor use. It features 3 spaces, a 400 A amp rating, and a flush mounting style. This enclosure is compatible with Square D LAL and LHL circuit breakers.

Frequently Asked Questions

What is the SQUARE D LA400F circuit breaker enclosure used for?

The SQUARE D LA400F is an L-Frame enclosure for indoor flush mounting. It houses Square D LAL and LHL circuit breakers up to 400 A, providing a safe, code-compliant housing for branch circuit protection in commercial and industrial electrical panels.

What are the specifications of the SQUARE D LA400F enclosure?

The LA400F is a 3-space, 400 A rated enclosure from Square D. It is designed for indoor use with flush mounting and is compatible with Square D LAL and LHL circuit breakers. The manufacturer part number is LA400F.

Where to buy the SQUARE D LA400F enclosure worldwide?

3G Electric supplies the SQUARE D LA400F enclosure to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Square D L-Frame enclosure.

How to install the SQUARE D LA400F flush-mount enclosure?

Install the LA400F by cutting a rough opening in the wall to the enclosure dimensions, securing it flush with the finished surface, and running conduit to the knockouts. Always follow local electrical codes and Square D's installation instructions for safe termination of LAL or LHL breakers.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE D Products

3G Electric supplies SQUARE D l-frame square d circuit breaker enclosures. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 225 A Amps, Flush Mounting, Indoor (MPN Q23225NF). Key specifications — For Use With: Square D QBL, QDL, QGL and QJL Circuit Breakers; Mounting Style: Flush; Location: Indoor; Brand: SQUARE D.
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 225 A Amps, Flush Mounting, Indoor (MPN Q23225NF). Key specifications — For Use With: Square D QBL, QDL, QGL and QJL Circuit Breakers; Mounting Style: Flush; Location: Indoor; Brand: SQUARE D.
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 250 A Amps, Flush Mounting, Indoor (MPN J250F). Key specifications — attr196434: Square D H and J-Frame Circuit Breakers; attr196428: Flush; attr196429: Indoor; attr211159: SQUARE D.
SQUARE
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 250 A Amps, Flush Mounting, Indoor (MPN J250F). Key specifications — attr196434: Square D H and J-Frame Circuit Breakers; attr196428: Flush; attr196429: Indoor; attr211159: SQUARE D.
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 250 A Amps, Surface Mounting, Indoor (MPN J250S). Key specifications — attr196434: Square D H and J-Frame Circuit Breakers; attr196428: Surface; attr196429: Indoor; attr211159: SQUARE D.
SQUARE
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 250 A Amps, Surface Mounting, Indoor (MPN J250S). Key specifications — attr196434: Square D H and J-Frame Circuit Breakers; attr196428: Surface; attr196429: Indoor; attr211159: SQUARE D.
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 250 A Amps, Surface Mounting, Outdoor (MPN J250R). Key specifications — attr196434: Square D H and J-Frame Circuit Breakers; attr196428: Surface; attr196429: Outdoor; attr211159: SQUARE D.
SQUARE
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 250 A Amps, Surface Mounting, Outdoor (MPN J250R). Key specifications — attr196434: Square D H and J-Frame Circuit Breakers; attr196428: Surface; attr196429: Outdoor; attr211159: SQUARE D.
SQUARE D Circuit Breaker Enclosure: 2 Spaces, 200 A Amps, Surface Mounting, Indoor (MPN Q22200NS). Key specifications — For Use With: Square D QBL, QDL, QGL and QJL Circuit Breakers; Mounting Style: Surface; Location: Indoor; Brand: SQUARE D.
SQUARE D
SQUARE D Circuit Breaker Enclosure: 2 Spaces, 200 A Amps, Surface Mounting, Indoor (MPN Q22200NS). Key specifications — For Use With: Square D QBL, QDL, QGL and QJL Circuit Breakers; Mounting Style: Surface; Location: Indoor; Brand: SQUARE D.
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 250 A Amps, Surface Mounting, Outdoor (MPN J250DS). Key specifications — attr196434: Square D H and J-Frame Circuit Breakers; attr196428: Surface; attr196429: Outdoor; attr211159: SQUARE D.
SQUARE
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 250 A Amps, Surface Mounting, Outdoor (MPN J250DS). Key specifications — attr196434: Square D H and J-Frame Circuit Breakers; attr196428: Surface; attr196429: Outdoor; attr211159: SQUARE D.

More from SQUARE D

View all SQUARE D parts
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Indoor (MPN LA400S). Key specifications — For Use With: Square D LAL and LHL Circuit Breakers; Mounting Style: Surface; Location: Indoor; Brand: SQUARE D.
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Indoor (MPN LA400S). Key specifications — For Use With: Square D LAL and LHL Circuit Breakers; Mounting Style: Surface; Location: Indoor; Brand: SQUARE D.
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400DS). Key specifications — For Use With: Square D LAL and LHL Circuit Breakers; Mounting Style: Surface; Location: Outdoor; Brand: SQUARE D.
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400DS). Key specifications — For Use With: Square D LAL and LHL Circuit Breakers; Mounting Style: Surface; Location: Outdoor; Brand: SQUARE D.
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400AWK). Key specifications — For Use With: Square D LAL and LHL Circuit Breakers; Mounting Style: Surface; Location: Outdoor; Brand: SQUARE D.
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400AWK). Key specifications — For Use With: Square D LAL and LHL Circuit Breakers; Mounting Style: Surface; Location: Outdoor; Brand: SQUARE D.
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400R). Key specifications — For Use With: Square D LAL and LHL Circuit Breakers; Mounting Style: Surface; Location: Outdoor; Brand: SQUARE D.
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400R). Key specifications — For Use With: Square D LAL and LHL Circuit Breakers; Mounting Style: Surface; Location: Outdoor; Brand: SQUARE D.