How do you interpret the contact numbering on a multi-contact relay?

Sep 4, 2024 ... I have seen products like Aqara T2 dry contact relay which (from my understanding) can operate a garage door or similar appliance without having current ... Aug 10, 2017 ... Hello all, What are the best options out there for a z-wave or zigbee controlled relay that will work with SmartThings Hub? In the case of a BDA or BBU, these devices will control the relay coil circuit when an event occurs, i.e.- an alarm, thus toggling the respected relay contacts. Dry contacts have a power source going through them that is independent of the control circuit. It's like a contactor or relay. Mar 11, 2022 ... Dry contact relays are used for a variety of functions. They could be used for sending an alarm back to central hub/NOC when the UPS is in ... Apr 13, 2019 ... Dry contacts do not switch power from the control circuit powering the relay coil, they are also known as clean contacts & are used to interface ... Functional Devices RIB02BDC : Dry Contact Relay, 20 Amp SPDT, Class 2 Dry Contact Input, 208-277 Vac Power Input, NEMA 1 Housing ... The RIB01BDC is a high- ... Connect dry contact relays and aftermarket smart garage door controller to Security+ 2.0 LiftMaster, Chamberlain or Craftsman opener with yellow “learn” button. What is Dry Contact? ... A dry contact, also known as a “volt-free contact,” is a type of relay or switch contact that does not carry any voltage or current from ... GrowControl™ RD8i relay independently operates eight dry contacts for control of equipment such as: HVAC systems, relay/contactor panels, lighting panels, motor ...