relé de control de voltaje
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 208V~440V & three-phase fourwire 120V~254V universal. N-phase phase failure protection, DIN-rail mounting.
3. Technical Parameters
Related control supply voltage: M440:AC 3x208→3x440V; M254: AC 3x120→3x254V 50/60Hz
Working voltage range: M440: AC 166V→528V; M254: AC 96V→329V
Voltage threshold range: 2%~20% of rated voltage
Unbalance threshold range: 5%~15% of rated voltage
Fixed hysteresis rate: 2%
Action delay range: 0.1s~10s
Phase failure and phase sequence: ≤0.5s
Reset delay range: 0.1s~10s
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): 2 C/O,1 C/O+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: Screw mounting or DIN rail mounting
4. Funtion Diagram
5. Wiring Diagram
6. Terminal Diagram
7. Dimension
Customization is acceptable, please contact us. Thanks!
