Product Features

Function: The low-voltage composite switch is a product used for connecting and disconnecting capacitors in low-voltage reactive compensation systems. Its basic working principle involves paralleling a thyristor and a magnetic latching relay, controlled by an internal microcontroller. During the moment of connection and disconnection, the thyristor handles zero-crossing switching, followed by the magnetic latching relay to maintain operation. The composite switch combines the advantages of zero-crossing switching without surge current with the low power consumption characteristic of AC contactors.

Key Indicators

Environmental Conditions

Altitude: ≤2000m

Ambient Temperature: -25～55℃

Relative Humidity: 40°C, 20% to 90%

Atmospheric Pressure: 79.5～106.0 Kpa

Surrounding environment free of conductive dust and corrosive gases, no flammable or explosive media. 6

Rated Voltage

Three-phase type: AC380V ±20%, 50Hz ±10%

Phase Type: AC220V±20%, 50Hz±10%

Working Power: Three-phase type: AC380V ±20% 50Hz ± 10%

Phase Type: AC220V ±20% 50Hz ± 10%

Power Voltage Harmonic Distortion Rate: ≤5%

Control Voltage: Acceptable control signal of DC 5V-12V/10mA

Basic Parameters

Current Specifications: 45A, 55A, 70A

Power Consumption: ≤3VA

Dynamic Response Time: Completion of insertion or removal action within 1 second after controlling the issuance of input or cut-off signal

Recut Timing: After the previous cut-out is completed, a 2-second delay is required before initiating another insertion action magnet.

Maintain relay mechanical lifespan: 106 cycles

Product Real Shots