Standards

IEC 60947-1, EN 60947-1,
IEC 60947-4-1, EN 60947-4-1,
IEC 60947-5-1, EN 60947-5-1 (auxiliary switch)

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

Function

The 3RT16 capacitors for capacitive loads are special versions of the 3RT10 contactors in sizes 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 3RT16 contactor for capacitive loads contains the three leading NO contacts and in the case of S00 one standard NC contact, and in the case of S0 and S3 one standard NO contact, which is unassigned. Size S00 also contains another unassigned NO contact in the basic unit.

In addition, a 2-pole auxiliary switch block (2 NO, 2 NC or 1 NO + 1 NC versions) can be mounted laterally on 3RT16 contactors for capacitive loads (3RT1647); type 3RH1921?1EA . .

The fitting of auxiliary switches for sizes S00 and S0 (3RT1617 or 3RT1627) is not expandable.

AC operation

Main, auxiliary and control conductors: Screw terminals

Technical specifications

Unless they are designed for special applications, the technical data are the same as for the 3RT10 contactors:

• for size S00 as for the 3RT1017 contactors
• for size S0 as for the 3RT1026 contactors
• for size S3 as for the 3RT1044 contactors

Main circuit – AC capacity