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Circuit Breaker Enclosure · 150A 600V AC · NEMA 1 Indoor for M1 Frame Breakers · Noark Electrical X150-600TYPE 1
X150-600TYPE 1
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Molded Case Circuit Breaker · 100A, 3-Pole, 35kA @ 480VAC · Line/Load Lugs, Adjustable Thermal Trip · Noark Electrical M1S100T3L
SKU: M1S100T3L
100A 3-pole molded case circuit breaker for commercial and industrial distribution equipment, with 35kA interrupting capacity at 480VAC and factory lug connections on both line and load sides. Built on Noark’s M1 frame platform with adjustable thermal and fixed magnetic trip characteristics for branch, feeder, and equipment protection where the available fault current matches the breaker rating.
What this product is for
This molded case circuit breaker (MCCB) is used to provide overload and short-circuit protection in commercial and industrial power distribution systems. The Noark M1S100T3L is a 100A, 3-pole breaker with line and load lugs for panel, enclosure kit, and equipment installations.
Use for
Use for 3-phase distribution, feeder protection, panel retrofits, machinery disconnecting means, and enclosed breaker assemblies where a 100A breaker with 35kA interrupting capacity at 480VAC is required. It is commonly selected where contractors need lug terminations on both sides and a thermal-magnetic trip unit.
Avoid for
Avoid using this breaker where the available fault current exceeds its interrupting rating, where a different pole configuration is required, or where the enclosure and accessory configuration calls for a plug-in, rear connection, or draw-out style instead of lug line/load termination.
Best for
Best for electricians, panel builders, and maintenance teams needing a compact MCCB for 480V systems, equipment upgrades, and replacement work using the Noark M1S platform.
Installed in
Typically installed in distribution panels, enclosed breaker kits, control panels, OEM equipment, and industrial electrical rooms. Typical applications include commercial tenant improvements, light industrial machinery, and service or feeder protection in 3-phase systems.
Why this product exists
This breaker fills the need between small branch devices and larger frame MCCBs by providing a 100A trip rating in a compact M1 frame. The line/load lug configuration helps simplify field wiring, while the thermal-magnetic trip design suits general-purpose protection duties.
Compared with similar products
Compared with lower interrupting breakers, this M1S model is suited to installations with higher available fault current at 480VAC. Compared with larger frame breakers, it provides a smaller footprint while still covering 100A applications. As typical guidance, 100A 3-pole MCCBs are commonly used for feeders and equipment loads rather than standard 15A or 20A branch circuits. Actual application suitability depends on available fault current, conductor sizing, enclosure rating, and local electrical code.
Specifications
- Manufacturer: Noark Electrical
- Manufacturer part number: M1S100T3L
- Product family: Ex9 Series M / M1S
- Product type: Molded case circuit breaker
- Rated current: 100A
- Poles: 3-pole
- Frame size: 150A frame
- Interrupting capacity: 35kA at 480VAC; 50kA at 240VAC; 14kA at 600VAC
- Voltage rating: Up to 600VAC UL, 50/60 Hz
- Trip unit: Thermal-magnetic, adjustable thermal / fixed magnetic
- Connection type: Lug line/load side
- Standards: UL 489, CSA C22.2 No. 5.1, IEC 60947-2
- Operating temperature: -25°C to 70°C (-13°F to 158°F)
- Approximate 3-pole dimensions: 6.46 x 3.54 x 3.33 in (164 x 90 x 84.5 mm)
- BrandNoark Electrical
- Warranty5 year
- Electrical
- Poles3 Pole
- Amps100 A
- Interrupt Rating (AIC)35 kA @ 480 Vac
- Physical
- MountingBolt-On
- Breaker TypeMoulded Case Circuit Breakers (MCCB)
Minimum Order $20
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Standard Shipping-Free on orders over $500 in Metropolitan Areas / Subject to $750 in Rural Areas.
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
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(Updated August 2026)
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.
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