Enclosed moulded case circuit breaker · 400A, 3-pole, 4-wire, 600V · 100kA@480V, Type 1, factory assembled · Noark Electric E01-4BM4H400T3L
What this product is for
This fully assembled enclosed circuit breaker is used as a main disconnect or feeder disconnect where a 400A, 3-pole, 4-wire breaker is required in an indoor electrical distribution system. It combines a Noark M4H400T3L moulded case circuit breaker with a Type 1 enclosure for ready-to-install use in commercial, industrial, and institutional applications.
Use for
- 400A service and feeder disconnect applications
- Indoor distribution equipment rooms and electrical service areas
- Systems with high available fault current requiring 100kA at 480V interrupting capacity
- 3-phase, 4-wire installations requiring a neutral terminal arrangement
Avoid for
- Outdoor or washdown locations where a Type 3R or Type 12 enclosure is required
- Applications needing electronic trip functions instead of thermal-magnetic protection
- Installations above the product's voltage and interrupting ratings
Best for
Best for electricians and panel builders specifying a factory-assembled enclosed breaker for indoor high-fault-duty distribution. It suits projects where certification, simplified field installation, and a matched enclosure-and-breaker assembly matter.
Installed in
Typically installed in electrical rooms, mechanical rooms, service entrances, commercial buildings, light industrial facilities, and other indoor power distribution locations. The Type 1 enclosure is intended for general indoor use.
Why this product exists
This product provides a pre-engineered enclosed breaker assembly so contractors do not need to source and fit the breaker and enclosure separately. For 400A distribution points, this can help reduce field assembly time and support consistent compliance with listed equipment requirements.
Compared with similar products
Compared with lower interrupting M4S or M4N enclosed breaker versions, this M4H configuration is selected when the available fault current is higher and 100kA at 480V is required. Compared with a loose breaker and separate enclosure, this unit arrives as a matched factory-assembled solution. As typical buying guidance, 400A enclosed breakers are commonly used for larger feeders and mains in commercial or light industrial systems, but final sizing depends on calculated load, service design, and local electrical code.
Actual application suitability depends on available fault current, conductor sizing, equipment ratings, and installation conditions.
Specifications
- Brand: Noark Electric
- Manufacturer part number: E01-4BM4H400T3L
- Breaker series: M4H400T3L
- Product type: Fully assembled enclosed moulded case circuit breaker
- Current rating: 400A
- Poles: 3-pole
- System: 4-wire
- Voltage rating: 600V AC
- Interrupting capacity: 100kA at 480V AC
- Trip type: Thermal-magnetic, AT/AM
- Breaker rating basis: 80% rated
- Enclosure type: Type 1 indoor
- Neutral terminal: 2-hole NT
- Line/load lugs: #4/0 AWG to 600 kcmil, (1) copper or aluminium conductor
- Approximate Type 1 enclosure dimensions for 400A frame: 32 in H x 11.8 in W x 33 in D (813 x 299 x 839 mm)
- Certification/listing: UL listed enclosed breaker assembly; manufacturer literature indicates CSA/UL offering for enclosed breaker line
- BrandNoark Electrical
- Warranty5 year
- Electrical
- Poles3 Pole
- Amps400 A
- Voltage600 V
- Interrupt Rating (AIC)50 kA
- Physical
- Enclosure DimensionsH49.2" x W22" x D7"
- Breaker TypeMoulded Case Circuit Breakers (MCCB)
Minimum Order $20
We accept the following payment methods:
Credit Card can offer cardholders convenience, security, rewards, and the opportunity to build a healthy credit history.
Click here for Contractor Cash Account
Trade Credit is a standard financing option for contractors and construction companies to obtain supplies and keep their projects moving. We offer 30-day credit terms to trade contractors on approved applications only.
Click here for Contractor Credit Account 
(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.