• Hand-off-auto toggle switch for each pump Green pump run pilot light for each pump Alarm test and silence switch Red pilot light (NEMA 1 only) and audible alarm with 83 to 85 dB rating for a high water condition Red alarm beacon included with NEMA 4X enclosure Auxiliary dry contacts High water alarm On single phase - circuit breaker for each pump On three phase - motor protective switch with overload protection Magnetic starter for each pump Alternating mechanism Numbered terminal strip for connecting pumps and variable level float switches Integral auxiliary terminal board connections (dry contact) for remote alarm devices Three or four variable level float switch control operation Three 20 ft float switches included with single phase panels The use of off-the-shelf components provide for relatively easy field maintenance and repair Float switches not included with three phase panels

An electrical alternator is used on a duplex pump application where automatic alternation of the pumps is desired for added protection in residential or commercial applications. With one pump operating to handle normal flow, a second pump becomes operational in the event the water level continues to rise. The built-in alarm system, a standard feature, can be connected to sound when the second pump becomes operational (three-float switch system) or independently (four-float switch system). All electrical systems must be installed by a qualified electrician and according to the National Electrical Code.