We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

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

The SQUARE D Circuit Breaker Enclosure, model LA400S, is a 3-space L-Frame enclosure designed for indoor surface mounting. It accommodates Square D LAL and LHL circuit breakers and is rated for 400 A amps.

SKU 3G-OTH-23161

Brand
SQUARE D
Item
Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting
Category
L-Frame Square D Circuit Breaker Enclosures
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SQUARE D
Manufacturer Part Number
LA400S
Type
Surface Mounting, Indoor
Amps
400 A
Location
Indoor
For Use With
Square D LAL and LHL Circuit Breakers
Mounting Style
Surface

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 Circuit Breaker Enclosure, model LA400S, is a 3-space L-Frame enclosure designed for indoor surface mounting. It accommodates Square D LAL and LHL circuit breakers and is rated for 400 A amps.

Frequently Asked Questions

What is the SQUARE D LA400S circuit breaker enclosure used for?

The SQUARE D LA400S is an L-Frame enclosure designed to house Square D LAL and LHL circuit breakers in indoor commercial or industrial settings. It provides a surface-mount housing for 400 A rated breakers, protecting connections and enabling safe distribution of electrical power within a facility.

What are the specifications of the SQUARE D LA400S enclosure?

The SQUARE D LA400S enclosure offers 3 spaces, a 400 A amp rating, and surface mounting for indoor use. It is compatible with Square D LAL and LHL circuit breakers. The manufacturer part number is LA400S, and it is built by SQUARE D for reliable electrical distribution.

Where to buy the SQUARE D LA400S enclosure worldwide?

3G Electric supplies the SQUARE D LA400S enclosure worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this enclosure to any international location.

How to install the SQUARE D LA400S enclosure?

Install the SQUARE D LA400S enclosure by mounting it securely to a flat indoor surface using appropriate hardware. Ensure the main power is off, then install compatible Square D LAL or LHL breakers into the 3 spaces. Follow local electrical codes and consult a licensed electrician for safe installation.

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

Compatible alternatives & equivalents

Cross-referenced by specification & description
SQUARE D Circuit Breaker Enclosure: 2 Spaces, 200 A Amps, Surface Mounting, Indoor (MPN Q22200NS)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 2 Spaces, 200 A Amps, Surface Mounting, Indoor (MPN Q22200NS)
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 225 A Amps, Surface Mounting, Indoor (MPN Q23225NS)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 225 A Amps, Surface Mounting, Indoor (MPN Q23225NS)
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 225 A Amps, Surface Mounting, Outdoor (MPN Q23225NRB)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 225 A Amps, Surface Mounting, Outdoor (MPN Q23225NRB)
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 125 A Amps, Surface Mounting, Indoor (MPN B125S)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 125 A Amps, Surface Mounting, Indoor (MPN B125S)
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 225 A Amps, Flush Mounting, Indoor (MPN Q23225NF)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 225 A Amps, Flush Mounting, Indoor (MPN Q23225NF)
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 125 A Amps, Flush Mounting, Indoor (MPN B125F)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 125 A Amps, Flush Mounting, Indoor (MPN B125F)

More from SQUARE D

View all SQUARE D parts
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400R)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400R)
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Flush Mounting, Indoor (MPN LA400F)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Flush Mounting, Indoor (MPN LA400F)
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400DS)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400DS)
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400AWK)
SQUARE D
SQUARE D Circuit Breaker Enclosure: 3 Spaces, 400 A Amps, Surface Mounting, Outdoor (MPN LA400AWK)