Voltage Control Relay
1. Applications
Used in air conditioning units, elevator machine room, pumps, fans and other motor control applications, as protection of over-voltage, under-voltage, phase loss, phase sequence, 3-phase imbalance. When the power supply is abnormal, stop supply to protect the equipment.
2. Features
Built-in microprocessors, true RMS measurement, voltage measurement accuracy ≤ 1%. 50/60Hz universal, knob setting. LED indicator shows working status. Rated voltage three-phase three-wire 220V~460V universal. DIN-rail mounting.
3. Technical parameters
Related control supply voltage: AC 3x220v→3x460V(P-P)50/60Hz
Working voltage range: AC187V~529V
Voltage threshold range: 2%~20% of rated working voltage
Voltage fixed hysteresis rate: 2% of rated working voltage
Unbalance threshold range: 5%~15%
Action delay range: 0.1s~10s
Phase failure and phase sequence: ＜0.5s
Voltage measurement error: ≤1% (Entire setting range)
Delay error: ±10% +0.1s
Knob setting accuracy: 1% Scale value
Rated insulation voltage: 460V
Contact configuration capacity(A): 1 C/O: 8A
Utilisation category: AC-15
Contact capacity: Ue/le: 250V/1.5A
Electrical durability: 100,000
Mechanical durability: 1000,000
Degrees of protection: IP20
Pollution degree: III
Short circuit protector type: NT00-6A
Altitude: ≤ 2000m
Permissible relative humidity: ≤ 50% (40℃) No condensation
Installation: (width)35mm(IEC/EN60715)
4. Function diagram
5. Wiring diagram
6. Dimension
Customization is acceptable, please contact us. Thanks!
