Part Number TJ90URCO410 replaces URCO410, ERPU410, URC041, URCO41. 3 in 1 start kit for newer systems with a run capacitor. Compressors sizes 1/4 through 1/3 HP, 115v. This kit includes relay, capacitor, and overload device, pre-wired. This kit will replace all 3 electrical components on capillary refrigeration systems. For older systems without a run capacitor use TJ90RCO410. For smaller horsepower compressors use TJ90URCO810.