ASCO 400-Amp Automatic Transfer Switch

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

400 Amp Transfer Switches ASCO 185 Series

The Non Service Entrance Rated ASCO 400 Amp Generator Transfer Switch Powers essential or critical loads through a subpanel separate from the main circuit breaker panel. During a power outage, the 400 Amp 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.

400 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 400 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.

400 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 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 185 400 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