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ASCO 300 70 Amp Automatic Transfer Switch | NON-SERVICE ENTRANCE RATED | 2 Wire Start, 4 POLE, 3-PH, 120/240, 70A, NEMA 3R
ASCO 300 70 Amp Automatic Transfer Switch | NON-SERVICE ENTRANCE RATED | 2 Wire Start, 4 POLE, 3-PH, 120/240, 70A, NEMA 3R - Image 2
ASCO Power Technologies
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ASCO 300 70 Amp Automatic Transfer Switch | NON-SERVICE ENTRANCE RATED | 2 Wire Start, 4 POLE, 3-PH, 120/240, 70A, NEMA 3R

Keep your home or business powered with the ASCO 300 70 Amp Automatic Transfer Switch. Designed for 115-600V output with a D-frame and 480/600V current limit fuses up to 200kA, this ATS automatically starts your generator and transfers power within seconds of an outage, then switches back when utility power returns.

Why Choose the ASCO 300 70 Amp ATS:

  • Reliable 70 Amp Capacity: Handles critical loads safely and efficiently.

  • UL 1008 and NFPA 110 Certified: Meets the highest safety and emergency power standards.

  • Flexible Mounting and Design: NEMA 1: 18″ x 31″ x 13″; NEMA 3R, 4, 12: 17.5″ x 35″ x 11.625″ — fits tight spaces with front-accessible installation.

  • Safe Operation: True double-throw design prevents simultaneous connection to utility and generator.

Call us today for an ASCO 300 70 Amp ATS upgrade or installation in Portland, Hillsboro, and Beaverton, or request a quote today to ensure your backup power is ready when you need it.

SKU: 70D-4P-120/240-NEMA3R Categories: ,

ASCO 300 70 Amp Automatic Transfer Switch For Sale in Portland, Oregon

Ensure your home or business stays powered with the ASCO 300 70 Amp Automatic Transfer Switch. Non-Service Entrance Rated, 2-Wire Start, 4-Pole, 3-Phase, 120/240V, 70A, NEMA 3R. These reliable ATS units automatically switch to your generator during outages. We provide professional installation in Portland, OR, so you can have peace of mind knowing your backup power is set up correctly. Call us today at (503) 357-3839 or request a quote today!

 

Amperage 70 Amps
Voltage Output 115-600V
Frame D
Current Limit Fuses 480/600V Max. 200kA
Dimensions (WxHxD) NEMA 1: 18″ x 31″ x 13″
NEMA 3R, 4, 12: 17.5″ x 35″ x 11.625″

 

Weight 100 lbs

Brand

ASCO Power Technologies

ASCO Power Technologies ASCO, a trusted leader in power management, delivers reliable automatic transfer switches that keep power flowing during outages. Whether you’re a homeowner protecting essential appliances or a business maintaining critical operations, ASCO ATS units ensure seamless transitions between utility and backup power. Browse our selection today! 185 Series | 300 series | Automatic Transfer Switches
ASCO Power Technologies

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