Air Circuit Breaker · 1200A, 2500A Frame, 85kA at 480VAC, 3-Pole Drawout Horizontal · Noark Electrical A25R3DH1200
What this product is for
The Noark Electrical A25R3DH1200 is a UL 1066 power air circuit breaker for low-voltage distribution systems requiring a 1200A continuous current rating, 85kA interrupting capacity at 480VAC, and a drawout design for maintainability. It is built for switchgear lineups, main distribution sections, and large feeder applications in commercial and industrial facilities.
Use for
Use for main or feeder protection in low-voltage switchgear, OEM assemblies, infrastructure projects, manufacturing plants, and larger commercial buildings. The drawout format helps where isolation, inspection, and replacement need to be completed with reduced downtime.
Avoid for
Avoid for small panelboards, branch circuits, or installations that do not use air circuit breakers or drawout switchgear construction. It is also not the right choice where a fixed-mounted breaker or a different interrupting rating is specified by the equipment design.
Best for
Best for electricians, switchgear builders, and maintenance teams specifying a 1200A 3-pole drawout ACB with horizontal rear connections in a 2500A frame platform. This format is typically selected where future servicing, testing, or breaker changeout is part of the maintenance plan.
Installed in
Typically installed in low-voltage switchgear rooms, electrical service entrances, industrial power distribution equipment, and large commercial electrical rooms. Actual fit depends on the switchgear design, cassette arrangement, bus configuration, and manufacturer coordination requirements.
Why this product exists
This breaker provides high fault-interrupting capacity and drawout maintainability in applications that exceed the range of standard moulded case breakers. A 1200A breaker in a 2500A frame family is commonly used where system coordination, service access, and platform standardization matter across multiple breaker ratings.
Compared with similar products
Compared with fixed-mounted air circuit breakers, this drawout version is better suited to installations where maintenance access and replacement speed are important. Compared with lower interrupting ratings, the 85kA at 480VAC rating supports higher available fault current applications. As typical buying guidance, air circuit breakers in this class are commonly chosen for main distribution and large feeder sections rather than final branch circuits. Actual suitability depends on available fault current, coordination study results, and local electrical code.
Specifications
- Manufacturer part number: A25R3DH1200
- Brand: Noark Electrical
- Product type: Air circuit breaker (power circuit breaker)
- Series / family: A25 series
- Rated current: 1200A
- Frame size: 2500A
- Interrupting capacity: 85kA at 480VAC
- Poles: 3-pole
- Mounting / construction: Drawout
- Connection orientation: Horizontal rear connection
- Standards: UL 1066, CSA approved / listed by source references
- Application: Low-voltage commercial and industrial power distribution
- 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 W357mm x D430mm
H18.11" x W14.06" x D16.93" - Electrical durability(635Vac) 600 hours
(847Vac) 300 hours - Mechanical durability10000 hours
- Poles3 Pole
- Amps1200 Amp
- Voltage800Vac (50/60Hz)
- Physical
- Enclosure DimensionsH20.87" x W17.72" x D18.31"
- MountingDrawout Horizontal
- 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.