The Siemens 3RF3365-3BA06 is a 1-pole solid-state contactor from the SIRIUS 3RF33 family, rated for AC-15 duty at 27.5 A at 40 °C with a switching voltage range of 48-600 V and a 24 V DC instantaneous-switching control input. The ring cable terminal connection suits panel wiring where secure, vibration-resistant terminations are needed.
The AC-15 rating of 27.5 A at 40 °C is the key selection parameter — it governs switching of electromagnetic loads (contactors, solenoid valves) where inrush currents can be several times the holding current. The 48-600 V switching range covers common low-voltage industrial supplies (up to 480/600 VAC systems) without needing a separate voltage variant. The 24 V DC control coil is standard for PLC-driven panels; verify your control supply can deliver the inrush without droop.
As a SIRIUS 3RF33 solid-state contactor, it mounts on standard DIN rail and occupies a single-width footprint. The ring cable terminal accepts lugged conductors — plan for the terminal lug size when laying out the gland plate and wireway fill. Solid-state switching means no coil hum and no contact wear, but the module dissipates heat; allow clearance above and below for natural convection, and derate if enclosed in a sealed cabinet above 40 °C.
Catalog classification
Group Code R711 and Product Group 3725 are the internal cataloging identifiers used for cross-referencing in Siemens systems and distributor databases.