Load Transition Type (Automatic) Open Transition Service Rated
Enclosure Type NEMA/UL 3R
UL Rating UL
Withstand Rating (Amps) 22,000
Lug Range 250 MCM - #6
Generac Smart Switches are designed for use with single phase generators that utilize an Evolution™ Controller. The 100, 200,
and 400 amp open transition switches are available in single phase in both service equipment rated and non-service equipment
rated configurations. The 150 and 300 amp open transition switches are only available in a service rated equipment configuration.
100-200 amp Generac Smart Switches are housed in an aluminum NEMA/UL Type 3R enclosure*, with electrostatically applied and baked powder paint. The Heavy Duty Generac Contactor is a UL recognized device, designed for years of service. The
controller at the generator handles all the timing, sensing, exercising functions, and transfer commands. Smart switches are covered by a 5 year limited warranty.
* 300 & 400 amp switches are housed in a steel enclosure.
Through the use of Digital Power Management technology (DPM), each of these switches has the capability to truly manage two air conditioning loads with no additional hardware. When used in tandem with the Power Management Module (PMM) starter kit,
individual PMMs can be use to intelligently manage up to four more additional loads.
100-400 Amps, Single Phase Smart Switches
All timing and sensing functions originate in the generator controller
Utility voltage drop-out <60%
Timer to generator start .10 second factory set, adjustable between 2-1500 seconds by a qualified dealer*
Engine warm up delay .5 seconds
Standby voltage sensor .60% for 5 seconds
Utility voltage pickup >80%
Re-transfer time delay 15 seconds
Engine cool-down timer .60 seconds
Exerciser 12 minutes every 7 days
The transfer switch can be operated manually without power applied.
*When used in conjunction with units utilizing Evolution™ controls