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 failure, phase sequence and phase imbalance. When the power supply is abnormal, turn off power supply to protect the equipment.

2. Features 

Built-in microprocessor, true RMS measurement, measurement accuracy ≤1%. 50/60Hz universal, knob setting, LED indicator shows working status. With N-phase phase failure protection,  unique load-side and PTC temperature protection, optional manual reset and key test function, DIN rail mounting.

3. Technical parameters

Related control supply voltage:  AC: 220V/230V/240V/380V/400V/415V(480V) 50/60Hz

Working voltage range: 155-540V(624V)

Over-voltage threshold range: (1.05~1.30)x Ue

Under-voltage threshold range:  (0.7~0.95)x Ue

Unbalance threshold range: 5%~15%

Action delay range: 0.1s~10s

Phase failure and phase sequence: ≤1s

Voltage measurement error: ≤1% (Entire setting range)

Delay error: ±10% +0.1s

Knob setting accuracy: 1% Scale value 

Rated insulation voltage: 415V 

Contact configuration capacity(A): 1 C/O: 10A 

Utilisation category: AC-15

Contact capacity: Ue/le: 240V/1.5A, 415V/0.95A

Electrical durability: 100,000

Mechanical durability: 1000,000

Degrees of protection: IP20

Pollution degree: III

Short circuit protector type: RT36-00 5A 

Altitude: ≤ 2000m

Permissible relative humidity: ≤ 50% (40℃) No condensation

Installation: Screw mounting or DIN rail mounting

4. Function Diagram

5. Wiring diagram

6. Dimension

Customization is acceptable, please contact us. Thanks!