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Home Generators Generator Transfer Switch ASCO 260-Amp Automatic Transfer Switch Series 185 NEMA 3R | 99714-372
Generac 400 Amp Service Rated Automatic Transfer Switch Single Phase Nema 3R | RTSW400A3
Generac 400 Amp Service Rated Automatic Transfer Switch Single Phase Nema 3R | RTSW400A3 $1,675.00
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ASCO 260 Amp Automatic Transfer Switch Series 185 NEMA 1 | 99714-371
ASCO 260 Amp Automatic Transfer Switch Series 185 NEMA 1 | 99714-371 $1,525.00

ASCO 260-Amp Automatic Transfer Switch Series 185 NEMA 3R | 99714-372

$1,950.00

  • ASCO 185 Automatic Transfer Switch 260 Amps
  • Restores Power in Less than 30 Seconds
  • NEMA 3R Aluminum Enclosure Rated for Indoor/Outdoor Installation
  • Non-Service Entrance Rated Switch
  • 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 260-Amp Automatic Transfer Switch

260-Amp ATS   Non-Service Rated    NEMA 3R Indoor/Outdoor     Residential or Light Commercial

260 Amp Transfer Switches ASCO 185 Series

The Non-SE Rated ASCO 260 Amp Generator Transfer Switch Powers only essential or critical loads located in a subpanel servd by the main circuit breaker panel. During a power outage, the 260 Amp Automatic Transfer Switch disconnects the essential load subpanel from the main panel and provides power to the subpanel from the generator. Only the essential and critical loads connected to circuit breakers in the subpanel receive power. The NEMA 3R aluminum cabinet meets code for indoor and outdoor installations.

260 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 ASCO 260 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.

260 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.
  • Not Rated for Use as a Main Disconnect.
  • NEMA 3R Aluminum cabinet 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 185 260 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.

Product Specifications

Model

Model Number; 185A2260F4M

Manufacturer; ASCO Transfer Switches

Rated Amps; 260 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; 185A2260F4M

Features

Weight; 118 Pounds

Dimensions; 24W x 48H x 10D inches

Warranty Information

Consumer Warranty; ASCO 2-Year Limited Warranty

Commercial Warranty; ASCO 2-Year Limited Warranty

Transfer Switches

Transfer Switch Model; 185A2260F4M

Transfer Switch Amps; 260 Amps

Ats Poles; 2

Transfer Switch Weight; 118 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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