Siemens 3RT2026-2BB40 Low-Voltage DC Coil Contactor

Siemens Sirius 3RT2026-2BB40 is a 3-pole power contactor with a 24 V DC coil, designed for AC-3e/AC-3 motor control and capable of switching three‑phase loads up to 25 A and up to 11 kW at 400 V AC. The unit includes one normally open and one normally closed auxiliary contact for signaling or interlocking, enabling simple control logic without an additional relay. Wiring is simplified by spring-loaded terminals, delivering secure, vibration‑resistant connections, and it comes in a compact S0 housing for easy panel integration. This DC‑coil variant is well suited for machine control where a low‑voltage control signal is used to switch higher‑power three‑phase motors, such as conveyors, pumps, or fans, within automation systems that require reliable, rugged Siemens devices.