3TB5017-0BB4

The 3TB5017-0BB4 from Siemens is a contactor that finds use in multiple electrical applications, primarily those classified under AC-3 operations. Characterized by its three normally open (NO) main contacts, this device is capable of managing a rated operational current of 110 A while providing a power rating of 55 kW at 400 V. This capability makes it suitable for significant power demands in industrial settings.

With DC operation at a control voltage of 24 V, this contactor uses a reliable screw connection type, which ensures solid and secure electrical connections during usage. Weighing in at 6.55 kg, it has a compact size classified as Size 6 for installation in various control panels. The environmental performance of the 3TB5017-0BB4 is noteworthy, functioning effectively in conditions ranging from -25 to 55 °C.

This contactor also features two normally open (NO) and two normally closed (NC) auxiliary contacts, enhancing its versatility in monitored circuits. For applications where power surges might occur, it is rated with a surge voltage resistance of 8 kV. Although rated IP00, indicating it lacks enclosure protection against contact and moisture, its design allows for use in controlled environments where additional protection may not be necessary.