Part Identity and Deployment Context
This form factor suits compact control panels where panel density and DIN-rail integration are primary constraints. The contactor measures 45 mm wide, 57.5 mm high, and 72 mm deep, fitting into the S00 footprint that is common across the SIRIUS 3RT1 series for motor loads up to the contactor's rated operational current.
The coil is rated for 220 V at both 50 Hz and 60 Hz, drawing 4.4 V·A at 50 Hz and a power factor of 0.27 at 60 Hz. This means the control transformer supplying the coil must be sized for the inrush, not just the sealed VA — a common oversight during panel design. Auxiliary contact ratings are provided for several DC voltages: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, and 0.8 A at 440 V. Each NO and NC auxiliary contact is rated for 12 A continuous current. These values govern the signal-level switching capability for PLC inputs, indicator lamps, and interposing relays in the control circuit.
Main Circuit and Wiring
Main and auxiliary circuits use screw-type terminals. The main circuit accepts solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or a maximum of 2x (0.75 to 4 mm²). For AWG, the terminals accept 2x (20 to 16), 2x (18 to 14), or 1x 12. The auxiliary and control circuit terminals share the same screw-type design. The manufacturer specifies a required fuse of gL/gG type rated at 20 A for type of assignment 2 coordination. This ensures that under short-circuit conditions, the contactor is protected without damage to the starter assembly — a coordination requirement that must match the upstream protective device.
This wide span covers most indoor industrial environments and unheated warehouses. These values matter for sequencing logic where contactor dropout timing affects downstream safety interlocks.
The product carries a RoHS compliance date of 01 July 2006, indicating it meets the EU Restriction of Hazardous Substances directive. Substance prohibitance is documented per the manufacturer's declaration. As a SIRIUS component, the 3RT1517-1AN20 is supported by the full Siemens technical documentation package including a datasheet, dimension drawings, circuit diagrams, and EC declaration of conformity, which can be provided with the shipment for quality documentation traceability.