Overview The Intermatic GM40AVE-RD89 is a heavy-duty electronic time control designed for residential and commercial automation applications. Its universal voltage sensing technology automatically detects and operates on 120-277 VAC without manual configuration. Offering flexible 24-hour and 7-day scheduling, it provides precise control of lighting, HVAC systems, pumps, signage, and other electrical loads. The durable NEMA 3R-rated enclosure allows for reliable indoor or outdoor installation. With advanced programming capabilities and battery backup protection, this timer delivers dependable performance and energy-saving automation. Features Heavy-duty 40A contact rating for demanding residential and commercial applications Automatic voltage detection and operation from 120-277 VAC without DIP switches Flexible 24-hour or 7-day scheduling with up to 14 programmable setpoints Manual override function with load status indication for convenient operation Power and status LED indicators provide clear operational feedback Self-recharging battery backup maintains programming for up to 2,500 hours during power outages NEMA 3R weather-resistant enclosure suitable for indoor and outdoor installations Lockable hasp enhances security and prevents unauthorized access Minute-level accuracy for reliable and precise load control