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. (See Section 430-71 though 430-113, plus any others that apply.)

Tested to UL Standard UL 508

• 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 to 85 decibel rating for a high water condition.
• Red Alarm Beacon included with Nema 4X enclosure.
• Auxilary Dry Contact.
• 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.
• Nema 1 - general purpose or Nema 4X - Watertight enclosures available.
• Integral auxiliary terminal board connections (dry contact) for remote alarm devices.
• 3 variable level float switch control operation.
• Three 20' float switches included with single phase pumps.
• UL Listed.
• 2 Year Warranty
• The use of off-the-shelf components provide for relatively easy field maintenance and repair.
• Float switches not included with three phase panels.

NEMA 4 - 10-0093

View the Catalog Sheet for Duplex Electrical Control Panels.
View the Recommended Applications for Duplex Electrical Control Panels (Requires Adobe Acrobat Reader 3.0 or Higher.)

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