DESCRIPTION

The FJR3-220A is a solid-state triplex/duplex alternator control designed to replace mechanical duplexor and triplexor controls in multi-pump systems. It features selectable triplex or duplex mode operation, allowing three pumps to be controlled with approximately equal run time while operating only the required number of pumps. The device operates on 24, 110, or 220 VAC ± 15% at 50/60 Hz with a maximum power consumption of 7 VA, and provides SPST relay output contacts rated for 5 Amp AC resistive loading at 250 VAC maximum switching voltage with a maximum power rating of 1100 VA. The FJR3-220A includes a power-up reset function that activates Output 1 when input power is restored after more than 5 seconds of interruption, and offers compact DIN-rail mounting for versatile installation. This control is ideal for applications requiring automatic pump sequencing and load balancing in water systems, HVAC, and industrial fluid handling applications.