Soft Charge Kit for BD3

455,10824,10

Kit for soft charging of BD3 capacitors. Useful to avoid main fuse tripping if multiple BD3 with big capacitors are switched on with a single switch.

Description

Kit includes:

  • Timer relay to set precharging time
  • ABB ESB contactor
  • Power resistors with DIN rail adapter and wires

DIN rail not included

Kit is compatible only with 3-phase 400VAC L-L grid.

Timer relay typically should be set to 30s delay

Wiring schematic:

For thin connection on the schematic, 0.5mm² wires can be used. Thick connection should use a cross-section adequate to the required current.

One kit is used to supply multiple BD3 devices.

Model selection for typical 3phase 400VAC supply and 192V absorbers:

kit current > 0.5 * absorber current * number of absorbers

Additional information

Current

24A, 40A, 63A