The DOLD IK 9173 is an undervoltage relay from the VARIMETER series, dedicated to monitoring undervoltage conditions in AC voltage networks.
It eliminates the need for a separate auxiliary voltage, significantly simplifying wiring and installation. This relay enables early fault detection and supports preventive maintenance, effectively preventing equipment damage.
Designed for DIN rail mounting, it integrates seamlessly into electrical control cabinets and is widely used in industrial automation, power distribution, and equipment protection systems. It delivers high reliability and availability, ensuring critical loads are safeguarded during voltage anomalies.