Garmin OnDeck Relay Switch 24vGarmin OnDeck Relay Switch 24v (model 010 13009 07) extends your OnDeck Hub by adding remote power control for 24 VDC marine systems, so you can manage cockpit devices from anywhere on the boat. Coil control voltage: 15. 6 to 31. 2 Vdc, suitable for 24 V systems. Load capacity: Minimum load 0. 1 A; maximum load up to 9 A at 1016 Vdc or up to 8 A at 2032 Vdc. Expansion capability: Add up to five relay switches to the OnDeck Hub for multi point control.