Siemens 3RT2026-2BB40 Three-Phase Power Contactor

Siemens 3RT2026-2BB40 is a three-pole power contactor designed for AC-3e/AC-3 motor switching, with a 24 V DC coil. It is rated for 25 A and can switch three-phase loads up to 11 kW at 400 V, enabling reliable control of medium-sized motors in industrial automation panels. The device uses spring-loaded terminals for dependable wire termination and comes in the compact size S0 form factor. An auxiliary contact pair provides control signaling: 1 normally open (NO) and 1 normally closed (NC), useful for interlocking, feedback, or sequencing within a control circuit. As part of the Siemens 3RT2 family, the 3RT2026-2BB40 shares the standard mounting and wiring conventions common to Siemens motor-control solutions, helping ensure straightforward panel integration. This combination of a 24 V DC coil, 3 poles, and AC-3e/AC-3 duty makes it a solid choice for controlling three-phase motors in automation applications where compact size and reliable energization are required.