The 38 Series is a range of of EMR or SSR modular interface relays which include the following features (according to Type): 6.2mm or 14mm wide. DC or AC/DC coil versions. Special coil/input leakage current suppression types. The Relay Interface Module provides one volt- free relay changeover contact on a latching relay. The relay is controlled by a command sent from the fire controller via the addressable loop. The relay state (activated, deactivated or stuck) is returned to the controller.
Relay modules use low-level data signals to switch relays capable of handling loads up to 10 Amps. Ideal for devices like PIR detectors and other sensors that output low level signals that need to turn another device on or off. Great for use with Arduino and other microcontrollers. Firstly, we need to distinguish between relay and relay modules. A relay module is an array of one or more relays. While it is possible to purchase individual relays separate from the module, we recommend that you purchase them in a module format.
Output Relay Modules are used to interface computer logic levels to other voltage levels. They provide output from logic level control systems to external loads such as motors, valves, and solenoids. Solid-state modules deliver electrically clean, photo-isolated, noise-free interfaces. A relay allows circuits to be switched by electrical equipment: for example, a timer circuit with a relay could switch power at a preset time. For many years relays were the standard method of controlling industrial electronic systems.
