Enclosed Molded Case Circuit Breaker · 400A, 3-Pole 4-Wire, 600V, 35kA at 480V, Type 1 Indoor Enclosure · Factory Assembled · NOARK Electric E01-3AM3S400T3L
What this product is for
This fully assembled enclosed circuit breaker provides feeder or branch circuit protection where a breaker needs to be mounted independently from switchboards or panelboards. It combines a NOARK M3S 400A molded case circuit breaker with a Type 1 indoor steel enclosure for commercial and industrial distribution systems.
Use for
Use for indoor feeder protection, equipment isolation, distribution panels, machinery supply, and commercial service distribution where a 3-pole, 4-wire enclosed breaker is required. Suitable for applications up to 600V AC where a 35kA rating at 480V meets the available fault current.
Avoid for
Avoid using this enclosure outdoors, in washdown areas, or in corrosive locations where a weather-resistant or non-metallic enclosure would be required. Also avoid applications where the available fault current exceeds the marked short-circuit rating or where project specifications call for a different enclosure type, trip function, or coordination study result.
Best for
Best for contractors, panel shops, and maintenance teams that want a factory-assembled enclosed breaker to reduce field assembly time. It is a practical choice for indoor commercial and industrial projects where a 400A disconnecting and overcurrent device is needed in one enclosure.
Installed in
Typically installed in electrical rooms, service areas, manufacturing facilities, commercial buildings, and indoor distribution spaces. Final mounting clearances, conductor sizing, and overcurrent coordination should follow the Canadian Electrical Code and the project design.
Why this product exists
This product exists to provide a ready-to-install enclosed breaker assembly instead of sourcing the breaker, enclosure, and wiring components separately. That can help reduce labour, simplify procurement, and improve consistency on panel-ready installations.
Compared with similar products
Compared with an open-style MCCB, this unit adds a factory enclosure for standalone mounting and safer operation in indoor spaces. Compared with larger fusible switches or higher-frame enclosed breakers, this 400A M3S assembly is commonly selected where a compact molded case solution meets the required ampacity and fault rating. As typical guidance only, 400A enclosed breakers are commonly used on larger feeders and equipment supplies; actual suitability depends on conductor sizing, available fault current, coordination, and local code.
Actual performance depends on installation conditions, available fault current, conductor terminations, and local electrical code.
Specifications
- Manufacturer: NOARK Electric
- Manufacturer part number: E01-3AM3S400T3L
- Product type: Fully assembled enclosed molded case circuit breaker
- Breaker series/frame: M3S, 400A frame
- Amperage: 400A
- Poles: 3-pole
- System: 4-wire
- Voltage rating: 600V AC
- Short-circuit current rating: 35kA at 480V
- Trip type: Thermal-magnetic
- Enclosure type: Type 1 indoor steel enclosure
- Terminations: Line and load lugs
- Compliance: CSA and UL listed / certified assembly
- BrandNoark Electrical
- Warranty5 year
- Electrical
- Poles3 Pole
- Amps400 A
- Voltage208 V
- Interrupt Rating (AIC)50 kA
- Physical
- Enclosure DimensionsH49.2" x W22" x D7"
- Breaker TypeMoulded Case Circuit Breakers (MCCB)
Minimum Order $20
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(Contractor Accounts)
Standard Shipping-Free on orders over $249 in Metropolitan Areas / $499 in Rural Areas
(All Other Accounts)
Standard Shipping-Free on orders over $499
Minimum Order Is $20
Freight Surcharge Apply To Oversized/Over-Weight Items(Not Limited To):
- PVC and EMT Pipe
- Wire and Cable
- Items over 48 inches in length
Surcharges are applied to items on an individual basis regardless if the rest of the order meets prepaid levels. If a freight line appears at the time of check out it only applies to the Items carrying a surcharge and not the entire basket of goods.
Shipping Options:
- A courier can deliver to your home, office, or your job site
- Pick up at local depot near you (applies to the following locations)
Edmonton Warehouse 8135 Roper Rd Edmonton, T6E 6S4, AB
Burnaby Warehouse 5608 Goring St Burnaby, V5B 3A3, BC
Orders are typically delivered within two to eleven business days. The transit time begins the first full shipping day after your order leaves our warehouse. Please allow an additional 2-5 days for delivery to remote locations, additional fees may apply.
THE FOLLOWING APPLIES TO STANDARD SHIPPING OPTIONS
- We cannot deliver to P.O. boxes.
- A signature may be required for shipments over $500.
- No weekend delivery.
- Wire & cable, EMT or PVC conduit, tube lamps 4ft or greater, and 10ft ground rods & mast pipes have special conditions.
Standard Shipping cost on orders less than $499
Total shipping cost = "Per Shipment" cost + "Per Item" cost. The "per item" cost is listed in terms of price per pound.
Product Group | Per Shipment* | Per Item |
|---|---|---|
Boxes | $6.99 | $1.49/lb |
Conduit & Raceway | $149.99 | $2.49/lb |
Connectors & Fittings | $5.99 | $1.19/lb |
Data & Structured Home | $5.99 | $1.19/lb |
Distribution Equipment | $5.99 | $1.19/lb |
Emergency Lighting | $6.99 | $1.49/lb |
Heating & Ventilation | $6.99 | $1.49/lb |
Lighting Controls | $5.99 | $1.19/lb |
Lighting Indoor | $6.99 | $1.49/lb |
Lighting Outdoor | $6.99 | $1.49/lb |
Tools | $4.99 | $.99/lb |
Wire & Cable | $49.99 | $2.29/lb |
Wiring Devices | $5.99 | $1.19/lb |
Any combination of the above items | Highest applicable per-shipment charge | As above |
Effective Date: August, 15, 1998
At Evolt Electrical Supply, customer satisfaction is our top priority. Please review our return policy below:
Returns
Defective Items:
- If you receive a defective item, you may return it for a replacement or refund within 30 days of purchase.
- To initiate a return, please contact our customer service team with your order number and a description of the defect.
Non-Defective Items:
- We do not accept returns for non-defective items. All sales are final once the product is shipped or ordered from the manufacturer. In certain circumstances we may amend this so feel free to contact our customer service team.
Return Process
Authorization:
- Before returning any items, you must obtain a Return Merchandise Authorization (RMA) number from our customer service team. Returns without an RMA number will not be accepted.
- Backordered items can not be cancelled if the item is in transit from the manufacturer, contact us to review.
Shipping:
- Customers are responsible for the return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance.
Condition:
- Returned items must be in their original packaging and condition. Any items returned damaged due to improper packaging or misuse will not be eligible for a refund or replacement.
Refunds
- Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund.
- Approved refunds will be processed within [7] business days and a credit will automatically be applied to your original method of payment.




