There are currently no products in this archive. Please try another category or search.
Willmall monitoring relays watch a measured electrical or process value and switch an output when it crosses a set limit, protecting equipment and raising alarms automatically.
It continuously compares a measured value against a set limit and switches an output when the value crosses the threshold, providing automatic alarm or trip.
Common parameters include voltage, current, phase state, and liquid level, with the measured input matched to the relay type used.
The threshold is set to the operating limit of the application, and hysteresis prevents rapid on-off flapping around the setpoint.
They are installed in distribution boards and control panels, typically on a DIN rail within reach of the circuit being supervised.
The output either switches a load directly or feeds an alarm or interlock into the control system, depending on wiring.
