SQUARE D Panelboard Main Breaker Kit
The Square D Panelboard Main Breaker Kit (MPN N400M) is a 400-amp, three-phase accessory for Square D L-Frame Panelboards. It features a 400A/L frame size and is compatible with the LHL circuit breaker series. This…
SKU 3G-OTH-722196
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
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Product Description
The Square D Panelboard Main Breaker Kit (MPN N400M) is a 400-amp, three-phase accessory for Square D L-Frame Panelboards. It features a 400A/L frame size and is compatible with the LHL circuit breaker series. This kit includes one screw set for installation.
Frequently Asked Questions
What is the Square D N400M panelboard main breaker kit used for?
The Square D N400M panelboard main breaker kit is used as a 400-amp, three-phase main breaker accessory for Square D L-Frame panelboards. It integrates with the LHL circuit breaker series to provide overcurrent protection and a service-disconnect point in commercial and industrial power-distribution systems.
What are the specifications of the Square D N400M main breaker kit?
The Square D N400M main breaker kit is rated 400 amps, three-phase, with a 400A/L frame size. It is designed for use with Square D L-Frame panelboards and is compatible with the LHL circuit breaker series. The kit includes one screw set for installation.
Where to buy the Square D N400M panelboard main breaker kit worldwide?
3G Electric supplies the Square D N400M panelboard main breaker kit worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this Square D accessory.
How to install the Square D N400M main breaker kit?
Install the Square D N400M main breaker kit by first de-energizing the panelboard. Mount the kit into the designated L-Frame panelboard opening, secure it with the included screw set, and connect the line and load conductors per the manufacturer's wiring diagram. Always follow local electrical codes.
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Common applications for SQUARE DSQUARE D Products
3G Electric supplies SQUARE D square d main breaker kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.