Reliance Controls Corporation CSR202 Easy/Tran Transfer Switch for Generators Up to 5,000 Watts Outdoor, NEMA 3R transfer switch Easy to install, easy to use. MAX. COMBINED LOAD @ 125 VAC	- 40 Maximum generator running watts: 5,000 Maximum single-pole circuits: 2, Maximum double-pole circuits: 1 Ideal for single-circuit control of farm buildings, irrigation systems, community wells, traffic signals electric heat and more