Monitoring relays are essential protection devices designed to detect electrical and operational faults before they cause equipment damage or downtime. These relays continuously measure parameters such as voltage, current, frequency, phase rotation, insulation resistance, and temperature to ensure the safe and efficient operation of electrical systems.
Charter Controls supplies a complete range of monitoring relays from leading global manufacturers including GIC, HIQUEL, THIIM, and Fanox. From simple single-phase voltage monitors to advanced multi-function protection relays, our range offers precision, reliability, and long service life for industrial control panels, process automation, and power distribution systems.
🔧 Monitoring Relay Types Available:
- 3-Phase Voltage Monitoring Relays: detect phase failure, phase imbalance, incorrect phase sequence, and under/overvoltage conditions
- Single-Phase Voltage & Current Monitoring: protect single-phase equipment against abnormal supply conditions
- Earth Leakage & Insulation Monitoring: detect ground faults and insulation breakdown to prevent electrical hazards
- Frequency Monitoring: ensure systems operate within safe frequency limits
- Speed & Standstill Relays: monitor shaft rotation or conveyor motion to prevent mechanical damage
- Thermistor Temperature Relays: protect motors and equipment from overheating using built-in PTC sensing
- Liquid Level & Pump Control Relays: maintain correct fluid levels in tanks and reservoirs
- Trip Amplifiers & Loop Isolators: provide signal conversion and electrical isolation in instrumentation circuits
- Diode Boxes & Auxiliary Modules: simplify control logic and signal interfacing in protection systems
✅ Benefits of Monitoring Relays:
- Enhance system safety and reliability by detecting abnormal conditions early
- Reduce unplanned downtime and maintenance costs
- Ensure compliance with industrial safety standards
- Compact DIN-rail design for easy integration into control panels
- Backed by Charter Controls’ UK technical support and stock availability
🚀 Applications:
- Industrial automation and control systems
- Motor protection and pump control
- Power distribution and generator systems
- Building services and HVAC
- Water treatment, conveyors, and material handling
Monitoring relays from GIC, HIQUEL, THIIM, and Fanox are available through Charter Controls in the UK — delivering dependable electrical protection and system assurance for every automation and power application.