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 (3 float switch system) or independently (4 float switch system). All electrical systems must be installed by a qualified electrician and according to the National Electrical Code.

• Hand-off auto toggle switch for each pump
• Green pump run pilot light for each pump
• Alarm test and silence switches
• Red pilot light (NEMA 1 only) and audible alarm with 83 - 85 dB rating for a high water condition
• Red alarm beacon included with NEMA 4X enclosure
• Auxiliary dry contact
• High water alarm
• On 1-ph, circuit breaker for each pump
• On 3 ph - 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
• 3 or 4 variable level float switch control operation
• (3) 20 ft float switches included with 1 ph panels
• The use of off the shelf components provide for relatively easy field maintenance and repair
• Float switches not included with 3 ph panels
• 2-years warranty

Standards/Certifications: cULus listed

Applications: For duplex pump applications

• Catalog https://www.plumbers-supply-co.com//ASSETS/DOCUMENTS/ITEMS/EN/UNI-PS1530_Cat.pdf
• Specification Sheet https://www.plumbers-supply-co.com//ASSETS/DOCUMENTS/ITEMS/EN/UNI-PS1530_Spec.pdf