Integrating remote signaling capabilities, this 350-amp MCCB includes a factory-installed 1A/1B auxiliary switch for advanced monitoring. The unit-mount design fastens securely into Square D switchboards and motor control centers. Rated for 65kA at 480VAC, it utilizes thermal-magnetic LI protection. For modern replacements, the PowerPact MJL36350 paired with an S29450 auxiliary contact block serves as the manufacturer's recommended upgrade path for this legacy M-Frame component.
Switchboards, Motor Control Centers, Industrial Enclosures
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed Thermal, Adjustable Magnetic
Wire Gauge
(3) 3/0 AWG - 500 kcmil (Al/Cu)
Max Wire
500 kcmil
Min Wire
3/0 AWG
Available Options
Shunt Trip, Undervoltage Release, Alarm Switch
Accessories
Auxiliary Switch (1A/1B), Lugs
Standards
CSA C22.2 No. 5, HACR, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip
SuperClub
Get rewarded every time you shop! Join SuperClub for free and start earning points on every purchase, unlocking exclusive discounts, special promos, and VIP perks. Already a member? Keep shopping to level up your rewards and enjoy even more benefits, including faster shipping, extended returns, and premium offers.
When shopping with SuperBreakers, you’ll have peace of mind knowing that every single item you purchase includes a 60 day warranty, free of charge. Why such confidence? Because only the highest quality electrical parts have a place on our shelves, and we stand by every single one we sell.
If anything goes wrong with your item that is not a result of misuse or normal wear and tear, we’ll gladly replace it at no cost to you.
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.