DOLD measuring relays are used for reliable monitoring of electrical installation parameters in both single-phase and three-phase systems. They offer a wide range of measuring and protective functions, supporting the stability and safety of devices and entire automation systems.

Depending on the model and product group, DOLD measuring modules enable the monitoring of voltage, current, load, frequency, temperature and other physical quantities. They are suitable for industrial, municipal, building and specialised applications, e.g. in the energy, transport and medical sectors.

Available product groups:

• Voltage monitoring modules – detect voltage failure, asymmetry and deviations in AC and DC networks,
• Current monitoring modules – monitor overloads, current drops and flow signals,
• Load measurement modules – protect against excessive power consumption, especially in motor applications,
• VARIMETER PRO series – modern, multifunctional measuring relays with advanced diagnostics and digital communication capabilities,
• Relays for special applications – dedicated to unusual environments or applications (e.g. explosion-hazardous areas, emergency power supply systems),
• Physical quantity control modules – enable monitoring of temperature, pressure, level and other non-electrical parameters,
• Multifunction relays – combine several measuring functions in a single module, saving space and simplifying system design.

DOLD measuring relays offer a high level of precision, are easy to configure and compatible with DIN mounting systems. Their reliability makes them an indispensable component of safety and control systems in modern automation.