Requirements contained in this Standard cover controls of the light-sensitive or presence-sensitive types, or both; for indoor or outdoor service; intended for the control of indoor or outdoor loads up to maximum of 20 A and maximum 347 V; intended for installations on 50 Hz or 60 HZ systems or DC upto 60 V (for US); and DC up to 42.4 V (for Canada); and intended to be installed in accordance with the National Electrical Code (NEC), NFPA 70, the Canadian Electrical Code (CE Code) Part I, CSA C22.2 No0, and NOM 001 SEDE.

• Year of Declaration: 2019
• Reference: UL 773A: 2016
• Number of Pages: 86
• Code: GYS 550
• Version:
• ICS Number: 29.120.40