Power contactor AC-3 25A 11kW-400V 3RT2526-1AH20

Overview Standards

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

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

The accessories for the 3-pole 3RT2 contactors can also be used for the 4-pole versions, see Accessories and Spare Parts for SIRIUS 3RT2 Contactors and SIRIUS 3RH2 Contactor Relays.

Size S0 to S3 contactors have two auxiliary contacts 1 NO and 1 NC integrated in the basic version.

Mountable auxiliary contacts

Sizes S00 to S3

Four additional auxiliary contacts, including no more than two NC contacts

For a general description of sizes S00 to S3 of 3RT2 contactors, see SIRIUS 3RT Contactors, 3-pole up to 250 kW.

Use of 3RT contactors with IE3/IE4 motors
Note:

For the use of 3RT25 contactors in conjunction with highly energy-efficient IE3/IE4 motors, please observe the information on dimensioning and configuring, see Application Manual.

For more information, see IE3/IE4 ready portal.

Application

The contactors are suitable for:

For changing the polarity of hoisting gear motors
For switching two separate loads
Note:

Single device for pole reversal; not suitable for reversing duty. 3RT25 contactors are not suitable for switching a load between two current sources.