1. Relay Function: A compact electromechanical switch that lets a low power control signal open or close a separate load circuit, providing electrical isolation between control and load. Why you need it: Enables safe control of higher voltage or higher current devices from a microcontroller or control system without passing load current through the control electronics. Standout attributes: compact size for tight spaces; robust housing and contacts for durable operation; designed for standard control wiring and mounting practices; reliable switching performance. Compatibility and materials: works with common control voltages and wiring methods; suitable for panel or PCB mounting depending on model; built with a durable enclosure and dependable contacts. Performance: fast response to control signals; long service life under repetitive switching; typically low control power requirements. Use scenarios: Controlling a lighting circuit from a microcontroller in a home automation setup Switching a small motor or fan in an HVAC or robotics project Replacing a manual switch in a control panel to enable automation 2. Switch Relay Function: A relay configured to switch a load circuit, with a focus on reliable mechanical switching and compatibility with common control systems. Why you need it: Adds a controllable switch to automation projects while maintaining isolation between control logic and the load. Standout attributes: compact form factor; durable construction; compatible with standard relay bases, sockets, and wiring practices; consistent switching performance. Compatibility and materials: integrates with typical control wiring and mounting methods; body designed for durability in regular operation. Performance: dependable operation across standard load ranges; quick actuation and quiet operation in many models. Use scenarios: Replacing a manual toggle in an equipment cabinet with remote switching Automating a small ventilation or exhaust fan Integrating with a thermostat or PLC to manage a heater or pump