An ASCO 185 Series power transfer switch with ASCO textASCO Power Technologies

ASCO 185 Series Automatic Transfer Switch | SERVICE ENTRANCE RATED | 2 Wire Start | 100A | NEMA 1

ASCO SE Rated 100A ATS

The ASCO 185 Series 100A Automatic Transfer Switch is a compact, service entrance rated solution for smaller residential standby power systems. Built for indoor use and compatible with all 2-wire start generators, it delivers automatic, worry-free power switching when utility service fails.

  • 100A rating—ideal for smaller homes or essential load panels

  • Service entrance rated with built-in main circuit breaker

  • Supports all 2-wire start standby generator systems

  • NEMA 1 indoor-rated enclosure for protected interior installs

  • Weekly exercise feature keeps your generator system ready

Ready to install the ASCO 185 Series 100A ATS? Request a quote online for accurate pricing and shipping.

ASCO 185 Series SE Rated Automatic Transfer Switch

The ASCO 185 Series 100A Automatic Transfer Switch is a compact, service entrance rated solution designed for smaller residential standby power systems. It’s ideal for homeowners who want a dependable, automatic way to switch between utility power and a backup generator during outages—without manual intervention or hassle.

This model is compatible with all 2-wire start generators, offering broad system flexibility across leading generator brands. With a 100-amp rating, it’s perfect for essential load coverage or for smaller homes and cabins where full-service backup isn’t required. Its NEMA 1 enclosure is designed for indoor installations, making it well-suited for garages, basements, or dedicated electrical rooms.

As a service entrance rated unit, the 185 Series includes a built-in main circuit breaker, eliminating the need for a separate service disconnect and simplifying code-compliant installations. It constantly monitors utility power and automatically starts your generator during outages. Once utility power is restored, it transfers the load back safely and shuts the generator down after a cool-down cycle. A built-in weekly exercise feature keeps your generator system active and reliable.

If you’re upgrading an outdated manual switch or installing a new generator system, the ASCO 185 Series 100A ATS provides dependable protection and peace of mind. Request a quote online today.

 

Weight 100 lbs
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ASCO 185 Series Automatic Transfer Switches

An ASCO 185 Series automatic transfer switch for seamless power managementThe ASCO 185 Series ATS is ideal for residential and light commercial standby power. Available in 100A–400A, it offers compact size, UL listing, and service entrance-rated options. Reliable power transfer during outages. Looking to purchase an ASCO 185 Series ATS? Request a quote online and be sure to include your shipping address for the most accurate pricing! ASCO | Automatic Transfer Switches
An ASCO 185 Series power transfer switch with ASCO text

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
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