This Relay Expansion Controller includes 16 on-board DPDT relays, capable of switching 1, 3, or 5-Amps of current, depending on the variant chosen. Â This relay expansion controller is designed to plug into our ProXR series industrial relay controllers, and includes the required XR Relay Expansion Controller cable. Â On-Board status LEDs indicate the on/off status of each relay. Â This expansion controller operates on 12 Volts DC, and may be powered by connecting two-wires to the on-board screw terminal connector, or by plugging in power supply (sold separately) with a 2.1mm center positive barrel connector.
Beginning Late 2020, we’ve made some updates to this product to make it better with increased component count while maintaining the same functionality and footprint. The New Rev G2 Series adds a better power supply circuit to improve noise immunity while providing increased power availability. We also improved the relay drive circuit to better handle inductive loads and changed the color of the circuit board to Black. We updated branding to ncd.io with updated logos.
This is the same product you have been buying for years, but now with improved electronics and while maintaining the same footprint as the original design. Most importantly, this is now a Legacy product, which means it will never go obsolete as long as critical parts are still available to us. Built with our new high-speed pick and place assembly line, we can complete the surface mount assembly process at a rate of several thousand units per day with the potential to scale to any volume you could imagine, so you never need to worry about supply quantities or supply chain problems.
Notice: Some orders may receive the original version.  The updated version will begin shipping as original stock is depleted and new stock becomes available. Â