Duplex Controller: Model DUP-120-023P

The Duplex Controller is a microprocessor based dual (2) pump controller which can alternate between two (2) pumps and detect a high  level alarm. It has the ability to select either pump as the lead or lag pump or alternate between either pump. Built-in time delays prevent both pumps from  turning on or off at the same time.  The duplex controller requires a minimum of four (4) float switch inputs.

	Features:	Specifications:
	Alternates Two (2) Output Loads High Level Alarm Senses Zero Crossing to Reduce Noise Spikes AC or DC Load Output Control Full LED Indication Self Test Function Low Power Input Ground Fault Isolation	Model Number: DUP-120-023P Supply Voltage 110 VAC Power Consumption Less Than 2 Watts Transient Protection Line Input 1500 VAC Pump Output 4500 VAC Alarm Output 4500 VAC Ground Isolation 1500 VAC Float Switch Type Normally Open Float Switch Current @ 5 VDC 1 MA. All Relay Contacts Normally Open Relay Contacts Current @ 110 VAC Res.: Alarm 8 AMP Pump 8 AMP Time Delay 4 Seconds Operating Temp -20C to +70C

Duplex Controller Part Numbers Part Number Supply Voltage Mounting Configuration Socket DUP-120-023P 120 VAC 12 Pin Plug-In SD12-PC

Theory of Operation

The Duplex Controller accepts float switch inputs or level sensor inputs. The float switch inputs are connected to a normally open float switch with a maximum closed contact resistance of 200 ohms @ 5 VDC.

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