Current Switches What they do Detect electrical current flowing through a conductor and provide a switching signal when a preset threshold is reached. Convert current information into a reliable on/off or alarm output for control systems, relays, PLCs, or alarms. Key benefits Protect equipment and processes by triggering alarms or control actions when current exceeds or drops below limits. Simplify monitoring and control without requiring continuous analog measurement; ideal for presence/absence and threshold detection. Reduce downtime and maintenance cost by enabling automatic fault detection (overload, stalled motor, loss of load). Primary attributes Function: Threshold-based current detection and switching; supports continuous monitoring and instantaneous trip signaling. Compatibility: Integrates with standard control systems, relays, contactors, and PLC inputs; suitable for AC and/or DC circuits depending on model. Form factor and size: Available in compact panel- or DIN-rail-mount enclosures to fit electrical cabinets and control panels. Materials and construction: Rugged housings and electrical contacts designed for industrial environments; insulated conductor passage or clamp type sensing options. Performance: Reliable switching at defined setpoints with adjustable sensitivity on many models; designed for repeatable operation in industrial duty cycles. Installation and operation highlights Simple wiring: Many units offer single-conductor through-hole or clamp connections, minimizing wiring time. Adjustable setpoints: Models often include user-adjustable thresholds and hysteresis to prevent false trips. Clear outputs: Provides clean digital switching action suitable for direct connection to control inputs or intermediary relays. Typical applications Motor protection and control: Detect stalled motors or overload conditions and send a trip or alarm signal to stop equipment or initiate protective actions. Building and machine automation: Monitor loads for sequence control, load shedding, or to confirm equipment operation (pump, fan, compressor). Energy and safety monitoring: Use in distribution panels to alarm on unexpected current draw, detect phase loss, or verify circuit energization. Why choose a current switch Straightforward, dependable solution for threshold-based current detection. Minimizes complexity when full waveform measurement is unnecessary. Flexible mounting and integration options make current switches suitable across industrial, commercial, and automation applications.