Air Circuit Breaker · 1600A, 3-Pole, Drawout, 85kA @ 480VAC · Horizontal Connection · Noark Electrical A25R3DH1600
What this product is for
The Noark Electrical A25R3DH1600 is a UL 1066 power air circuit breaker for low-voltage power distribution in commercial, institutional, healthcare, standby power, OEM, and industrial systems. It is a 1600A, 3-pole, drawout ACB in the A25 series with horizontal rear connection pads and an 85kA interrupting rating at 480VAC.
Use for
Use for main, tie, or large feeder protection in switchgear and distribution assemblies where a withdrawable breaker helps with service access, replacement, and maintenance. This model is commonly selected where 1600A capacity is required and the installation is built around a drawout air breaker platform.
Avoid for
Avoid for applications requiring a fixed-mounted breaker, a 4-pole breaker, or ratings above the A25 drawout range. Also avoid where the assembly requires a 2500A drawout frame, since Noark documentation indicates drawout versions in the A25 series are available up to 2000A, with horizontal terminal options also limited to 2000A maximum.
Best for
Best for switchgear lineups and larger distribution systems where electricians and maintenance teams need a withdrawable breaker for isolation and serviceability. It suits projects that need a 1600A breaker with high fault interruption and a standardised A25-series platform.
Installed in
Typically installed in low-voltage switchgear, power distribution rooms, generator distribution systems, industrial plants, commercial buildings, healthcare facilities, and OEM power assemblies. Final installation method, cassette requirements, and trip unit configuration should be confirmed against the complete assembly design.
Why this product exists
This breaker fills the need between smaller moulded case solutions and larger power circuit breaker frames by providing high-current protection in a serviceable drawout format. For buyers comparing frame sizes, the 2500A A25 platform allows a 1600A breaker rating within the same family, which can help standardise parts across similar switchgear builds.
Compared with similar products
Compared with fixed A25 breakers, this drawout version is better suited where maintenance access and replacement speed matter. Compared with smaller MCCBs, an air circuit breaker platform is typically chosen for larger mains and switchgear applications with higher coordination and serviceability requirements. As a rule of thumb, these products are commonly used in larger commercial and industrial distribution systems rather than branch-circuit applications. Actual performance depends on system design, available fault current, protection settings, and local electrical code.
Specifications
- Manufacturer: Noark Electrical
- Manufacturer part number: A25R3DH1600
- Product family: A25 Series Power Circuit Breakers
- Product type: Air circuit breaker (power circuit breaker)
- Rated current: 1600A
- Poles: 3-pole
- Mounting type: Drawout / withdrawable
- Terminal connection: Horizontal rear connection pads
- Interrupting capacity: 85kA at 480VAC (manufacturer literature lists 85kA in the 254-508VAC range)
- Frame size: A25 / 2500A frame family
- Standards: UL 1066, CSA approved listing indicated by seller/manufacturer sources
- Frequency: 50/60 Hz
- Typical applications: Commercial, industrial, healthcare, standby power, OEM 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
- Amps1600 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 
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.