Standards

IEC/EN 60947‑1, IEC/EN 60947‑4‑1, IEC/EN 60947‑5‑1 (auxiliary switches)

The 3RT16 contactors for capacitive loads are suitable for use in any climate. They are finger-safe according to IEC 60529.

Function

The 3RT16 contactors for capacitive loads are special versions of the 3RT10 contactors size S00 to S3. The capacitors are precharged by means of the mounted leading NO contacts and resistors; only then do the main contacts close.

This prevents disturbances in the network and welding of the contactors.

Only discharged capacitors are permitted to be switched on with 3RT16 contactors for capacitive loads.

For the capacitor switching capacity of the basic 3RT10 contactor version, see Technical specifications.

Auxiliary switches

The auxiliary switch block which is snapped onto the 3RT1647 contactor for capacitive loads contains the three leading NO contacts and one standard NO contact, which is unassigned. In addition, a 2-pole auxiliary switch block (2 NO, 2 NC or 1 NO + 1 NC versions) can be mounted laterally on 3RT1647 contactors; type 3RH1921‑1EA . .

AC operation

Main, auxiliary and control conductors: Screw terminals

Technical specifications

Unless they are designed for special applications, the technical data for size S3 are the same as for the 3RT1044 contactors:

Main circuit – AC capacity