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Home Generators Generator Transfer Switch ASCO 200-Amp Automatic Transfer Switch Series 185 Service Entrance Rated NEMA 3R | 99714-376
ASCO 400-Amp Automatic Transfer Switch Series 185 NEMA 1 | 99714-373
ASCO 400-Amp Automatic Transfer Switch Series 185 NEMA 1 | 99714-373 $1,865.00
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ASCO 100-Amp Automatic Transfer Switch Series 185 SE Rated NEMA 1 | 97714-432
ASCO 100-Amp Automatic Transfer Switch Series 185 SE Rated NEMA 1 | 97714-432 $1,689.00

ASCO 200-Amp Automatic Transfer Switch Series 185 Service Entrance Rated NEMA 3R | 99714-376

$1,410.00

  • ASCO 185 Automatic Transfer Switch 200 Amps
  • Restores Power in Less than 30 Seconds
  • NEMA 3R Aluminum Enclosure for Indoor/Outdoor Installation
  • Service Entrance Rated for Main Disconnect
  • Double Throw Contacts with Mechanical Interlocks
  • Isolates Utility Power from Generator Power
  • Compatible with Standby Generator 2-Wire Automatic Start
  • User Friendly Control Interface with Power and Switch Status LEDs
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Category: Generator Transfer Switch
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Description

ASCO 200-Amp Automatic Transfer Switch

200-Amp ATS   Service Entrance Rated    NEMA 3R Indoor/Outdoor     Residential or Light Commercial

200 Amp Transfer Switches ASCO 185 Series

The Service Entrance Rated ASCO 200 Amp Generator Transfer Switch Powers the main circuit breaker panel. During a power outage, the 200 Amp Transfer Switch disconnects the main circuit breaker panel from the utility and connects power from the generator. All circuits and loads connected to the main circuit breaker panel receive power. The NEMA 3R aluminum cabinet meets code for indoor and outdoor installations.

200 Amp Automatic Transfer Switch

ASCO Transfer Switches make sure the power stays on when utility power fails. When utility power returns, the ASCO ATS switches the home or business back to utility power and begins generator cool-down.

Compatible with any two-wire start system, The 200 Amp Automatic Transfer Switch monitors the utility power 24/7. When an outage occurs or power quality falls below an acceptable level, the transfer switch starts the generator and waits as the engine warms and the speed stabilizes. Once the generator is ready, the ATS isolates the utility from the subpanel and supplies generator power to the home or business.

200 Amp Transfer Switch

  • The time from power failure to restoration is typically less than 30 seconds.
  • Automatically switches back to utility power when it returns.
  • Generator cool-down cycle before shutdown.
  • User friendly control panel.
  • Rated for Use as a Main Disconnect.
  • NEMA 3R Aluminum Enclosure rated for indoor/outdoor installation.

ASCO 185 Features

  • Power Status LEDs for Utility and Generator and Transfer Switch Position.
  • Double Throw Contacts with Mechanical Locking Isolate Utility from Generator
  • UL-1008 Listed and Meets NEC Article 702 Requirements
  • 1 or 3 second time delay following outage before startup.
  • Compatible with any two-wire start generator.

ASCO 185 200 Amp Transfer Switch Recommended Accessories

  • The ASCO Strip Heater is recommended for extremely cold climates to prevent condensation from freezing inside the transfer switch. A frozen switch may not transfer the load to the generator during a power outage. The Strip Heater is operated by a thermostat and requires an external 120-Volt source. Available as a kit only available for mounting by the end user.
  • The 14A/14B auxiliary contacts indicate the position of the main contacts. One contact each for the normal and emergency positions. Available as a kit only for mounting by the end user in 100-Amp, 200-Amp, and 230 Amp ASCO 185 Transfer Switches.

Product Specifications

Model

Model Number; 1AUSA2200F4M

Manufacturer; ASCO Transfer Switches

Rated Amps; 200 Amps

Voltage; 120/240 Volts Single Phase

Enclosure; NEMA 3R Aluminum

UL Listed; UL-1008 and UL-50

Type; Automatic Transfer Switch

Transfer Switch Model; 1AUSA2200F4M

Features

Weight; 49

Dimensions; 16W x 24H x 10D inches

Warranty Information

Consumer Warranty; ASCO 2-Year Limited Warranty

Commercial Warranty; ASCO 2-Year Limited Warranty

Transfer Switches

Transfer Switch Model; 1AUSA2200F4M

Transfer Switch Amps; 200 Amps

Ats Poles; 2

Transfer Switch Weight; 49 Pounds

Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

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    At X Factors Motorsports, we specialize in high-performance engines, outboards, and premium automotive equipment. With expert support, fast shipping, and trusted brands, we help builders, racers, and enthusiasts power their passion — one project at a time.

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    • Phone: +1 (714) 694-3374
    • E-mail: sales@xfactorsmotorsports.com
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