Air Circuit Breaker · 2000A Rated Current, 2500A Frame, 4-Pole, Drawout, Rear Vertical Connection, 85kA at 480V AC · UL 1066 / CSA C22.2 No. 31 · Noark Electrical A25R4DV2000
What this product is for
The Noark Electrical A25R4DV2000 is a low-voltage air circuit breaker for main or feeder protection in commercial and industrial power distribution equipment. It is a 2000A, 4-pole, drawout ACB in the A25 family with rear vertical connections and an interrupting rating of 85kA at 480V AC.
Use for
Use this breaker in switchgear, custom power distribution assemblies, standby power systems, healthcare facilities, industrial plants, data-centre style distribution, and OEM equipment where a drawout power breaker is required for serviceability and isolation. The drawout format is commonly selected where maintenance access and replacement speed matter.
Avoid for
Avoid using this product where a moulded case breaker is specified, where a fixed-mounted breaker is required, or where horizontal rear connections are needed instead of vertical. Also confirm the trip unit, accessories, control voltage, and cassette requirements before ordering, as these can affect fit and function.
Best for
Best for 480V class low-voltage distribution systems that need a 4-pole drawout breaker with high fault-current capacity and service-friendly replacement. This format is typically chosen by switchgear builders, panel shops, and facility teams standardizing on withdrawable power breakers.
Installed in
Typically installed in low-voltage switchgear lineups, power distribution rooms, generator distribution sections, large commercial buildings, industrial facilities, and OEM-built assemblies. As a rule of thumb, breakers in this class are selected as part of a coordinated system, so short-circuit study, selective coordination, and trip settings should be reviewed before purchase. Actual performance depends on system design, available fault current, installation conditions, and local electrical code.
Why this product exists
This breaker provides high-ampacity protection in a drawout platform so maintenance teams can rack out the device for inspection or replacement without rebuilding the section. The 4-pole design is used where switching or protection of the neutral is required by the system design or specification.
Compared with similar products
Compared with fixed ACBs, a drawout breaker simplifies servicing and replacement. Compared with smaller frame devices, the 2500A frame supports higher system capacity while this unit is rated at 2000A. Within the Noark A25 family, the R interrupting class corresponds to 85kA, while other variants in the family are available with different interrupting ratings and accessory options.
Specifications
- Manufacturer: Noark Electrical
- Manufacturer part number: A25R4DV2000
- Product family: A25 Series Power Circuit Breakers
- Product type: Air circuit breaker (ACB)
- Rated current: 2000A
- Frame size: 2500A
- Poles: 4-pole
- Mounting type: Drawout / withdrawable
- Connection orientation: Rear vertical connection pads
- Interrupting rating: 85kA at 480V AC class; listed by source as 85kA at 254-508V AC
- Standards: UL 1066, CSA C22.2 No. 31
- Typical applications: Commercial, industrial, healthcare, standby power, OEM switchgear
- System note: 4-pole breakers are commonly used where neutral switching is specified; verify project requirements before ordering
- BrandNoark Electrical
- Warranty5 year
- Electrical
- Short circuit breaking rating85kA (254-508Vac)
- Compliant with standard(s)UL1066
UL1066 (low-voltage AC and DC power circuit breakers)
CSA C22.2 No.31
ANSI C37.13 (low-voltage power circuit breakers)
ANSI C37.16 (low-voltage power circuit breakers ratings; related requirements and applications)
ANSI C37.17 (IEEE standard for trip systems)
ANSI C37.50 (low-voltage AC power circuit breakers; test procedure) - DimensionsH460mm x W452mm x D430mm
H18.113" x W17.8" x D16.93" - Electrical durability(635Vac) 600 hours
(847Vac) 300 hours - Mechanical durability10000 hours
- Poles4 Pole
- Amps2000 Amp
- Voltage800Vac (50/60Hz)
- Physical
- Enclosure DimensionsH20.87" x W21.46" x D18.31"
- MountingDrawout Vertical
- Breaker TypeAir Circuit Breaker
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.