IEC Magnetic Contactor, 1NC-1NO, 24V DC, 3 P, Non-Reversing, Screw 3RT20281BB40

The Siemens IEC Magnetic Contactor is a 3-pole, non-reversing, electrically operated switch rated for operation within IEC-standard system parameters. It operates with a 24 V DC coil as specified and is equipped with auxiliary contacts of the specified configuration. The device uses screw terminals for connections and is part of the SIRIUS 3RT20 family, with a compact, modular IEC design compatible with standard control panel configurations based on specifications. - Coil Voltage: 24 V DC - Action / Reversing: Non-Reversing (Reversing: No) - Poles / Main Contacts: 3 poles; 3 normally open main contacts - Auxiliary Contacts: Yes; 2 auxiliary contacts total (1NO/1NC) - Auxiliary Contact Form / Configuration: 1NC/1NO (1NO/1NC) - Frame Size / Series: S0; SIRIUS 3RT20 - Contactor Style: IEC - Electrical Connection: Screws - Embedded Surge Suppressor: No - Enclosure / IP Rating: No Enclosure; IP20 - Dimensions: Depth 4.21 in; Height 3.6 in; Width 1.77 in - Voltage / Phase: 690V AC; Three-phase - Max Operating Watts: 19 kW (at 400V, AC-3); 28 kW (at 400V, AC-1) - Mechanical Durability: 10,000,000 cycles - Operating Temperature: -13 °F to 140 °F - Mounting: DIN Rail, Surface; Mounting Hole Diameter 0.19 in; Hole Distance (Height) 2.36 in; Hole Distance (Width) 1.38 in; Mounting Position: Vertical - Standards: REACH Art 33, WEEE (2012/19/EU) - Item: IEC Magnetic Contactor - Includes Auxiliary Contacts: Yes - Response Time: Various ranges; AC/DC operation with opening/closing delays; approximately 4 to 170 ms depending on mode