Main Technical Features

Protection Function

Using a microprocessor to monitor the operation status of relays, input power,and loads in real-time, it has comprehensive protection functions.
Voltage fault phase loss protection: When the system voltage is in phase loss power supply, the switch refuses to close. If phase loss occurs after connection,it will automatically disconnect.
Power supply voltage phase loss protection: When the working power supply is phase loss, the switch refuses to close. If phase loss occurs after being connected, it will automatically disconnect.
Self diagnostic fault protection: The system automatically monitors the operating status of the relay. If a fault occurs, it refuses to shut down or automatically disconnects
No load protection: When the load is not connected, the switch refuses to close.Power outage ●protection: After being connected, if there is a sudden power outage, it will automatically disconnect.

Low Power Consumption

The relay only consumes electricity at the moment of switching, and does not consume electricity during normal times, thus achieving energy conservation and consumption reduction.

Job Security

All control input signals and internal circuits are safely isolated, and advanced intelligent control technology and patented devices are adopted. Compared with similar products, it has extremely high performance advantages in surge current and safety reliability.

Classification

Three phase co compensation type: The wiring method of the compensation capacitor is triangular connection(represented by △)
Three phase compensation type: The wiring method of the compensation capacitor is star connection(represented by Y)

Advantage

After receiving external control signals, through intelligent judgment, the optimal switching point is automaticallv found to ensure zero crossina switchina, low inrush current, non sintering of contacts, owenergy consumption, and has functions such as voltage anomaly protection, phase loss protection.component fault protection,and operation indication.Compared with similar products, the BYFK series of intelligent low-voltage composite switches greatly improve their inrush current and safety reliability.

Specification

Project	Parameter
Ambient temperature	-20℃~+55℃
Relative humidity	At 40℃,20%~90%
Rated voltage	380V/220V three-phase four wire AC 50Hz The synchronous change of three-phase voltage shall
Allowable deviation	not exceed ± 20%
Voltage distortion rate	<5%
Rated frequency	50HZ
Rated current	<80A(Ordinary type); <80A(With circuit breaker type)
Service life	500000 times
Phase number	A Delta connection method (three-phase); Y-shaped connection method (single-phase)
Three phase control capacity	<40Kvar
Single-phase control capacity	<10Kvar
power dissipation	<1.5VA
Contact pressure drop	<100mV
Contact withstand voltage	>1600V
Response time	<1000ms
Interval between each turn on and turn off	>5 Second
Interval between two consecutive connections	=35 Second
Control signal	DC12V±20%; Exchange/Communication (Optional)
Input impedance	>6.8K
Conduction impedance	<0.0032
Inrush current	Less than 1.5 times the rated current
Rated current of feedback contact	1A (put on as connected)