Siemens 3RT2026-1BB40 Industrial Power Contactor

Siemens 3RT2026-1BB40 is a three-pole Sirius power contactor designed for AC-3e/AC-3 duty, rated at 25 A and 11 kW at 400 V. It operates with a 24 V DC coil and provides a built-in auxiliary contact pair (1 normally open and 1 normally closed) accessible via screw terminals in size S0, making wiring straightforward in compact panels. This configuration suits starting and stopping moderate-load motors and other AC-3 applications, delivering reliable switching for loads up to 11 kW at 400 V. As a member of the Sirius 3RT family, it shares the same compact footprint and mounting philosophy, with compatibility to common accessories for control logic and interlocking in industrial systems.