| Categories | Voltage Control Relay |
| Rated supply voltage | 3-phase 3-wire 220V~450V AC |
| Rated supply frequency | 50/60Hz |
| Phase failure and phase sequence | ≤0.5s |
| Measurement accuracy | ±1% |
| Data storage time | 10 years |
| Accumulated timing error | ≤0.001% |
| Contact configuration capacity(A) | 10A |
| IP Class | IP20 |
| Altitude | ≤2000m |
| Use category | AC-15 |
Function
Applications
Used in air conditioning units, elevator machine room, pumps, fans and other motor control applications, as protection of over-voltage, under voltage, phase failure, phase sequence and phase unbalance. When the power supply is abnormal, turn off power supply to protect the equipment.
Features
Built-in microprocessors, true RMS voltage measurement, voltage measurement accuracy≤1%. Measuring frequency 45Hz~65Hz,knob setting, LCD displays voltage and fault information,protection can be turned on or off.Check 3-phase voltage value by button,with counting and timing function.Record number and time of useing devices.DIN rail mounting.
| Rated supply voltage | 3-phase 3-wire 220V-450V AC | ||
| Rated supply frequency | 50/60Hz | ||
| Phase filure and phase sequence action time | ≤ 0.5s | ||
| Delay error | ±10%+0.1s | ||
| Measurement accuracy | +1%, RMS | ||
| Data storage time | 10years | ||
| Maximum counting capacity | 999999 | ||
| Maximum timing capacity | 9999 h 59 m | ||
| Maximum count frequency | 5Hz | ||
| Accumulated timing error | ≤0.001% | ||
| Count input signal | AC/DC 20V-450V | ||
| Contact Configuration capacit(A) | 10A | ||
| IP Class | IP 20 | ||
| Class of pllution | Ⅲ | ||
| Electrical Life | 105 | ||
| Mechanical life | 106 | ||
| Altitude | ≤2000m | ||
| Allowable relative humidity | ≤50% ( 40°C ) (No condensation ) | ||
| Use category | AC-15 | ||
| Short circuit protector type and maximum rating | NT00-6A | ||
| DIN rail Standard | Ue/Ie : 250V/1.5A | ||
| Contact capacity | 1 C/O | ||
| DIN rail Standard | width 35mm(IEC/EN60715) | ||
Function Diagram


Dimensions

> How Does a Liquid Level Relay Automate Your Water Pump?
A Liquid Level Relay automates pump control using conductive electrodes—no PLC required. This guide covers fill/drain modes, electrode selection, wiring, and trouble...
> What Makes a Charging Connector Reliable for Daily EV Charging?
A Charging Connector is more than a cable end—it’s the critical interface between the EV and the charger. With GB, EU, and US standard options, mechanical life of ≥1...
> How Often Should You Inspect and Maintain Your Charging Connector?
Your EV charging connector is the most frequently handled component in your charging infrastructure. Every day, it gets plugged in, unplugged, dropped, stepped on, a...
> How Does a Liquid Level Relay Automate Your Water Pump?
Automatic water pump control using liquid level relay. Wiring diagrams for fill and drain modes, electrode selection, and troubleshooting.




