Siemens 3VU1300-1TK00 Motor Starter Protector

Siemens 3VU1300-1TK00 Motor Starter Protector is a three-pole device in the Siemens 3VU family that combines motor protection with starter control for transformer and motor circuits, designed for direct panel mounting and wired with screw terminals to simplify installation in compact control enclosures. It includes an auxiliary contact to signal protective status and coordinates with upstream and downstream devices to enable safe isolation of faults while still allowing normal motor starting and control sequences. The broader 3VU1300 line is specifically referenced in transformer protection schemes for reliable fault interruption, and the 1TK00 variant represents one configuration within that family; Siemens lists this model as discontinued with no direct replacement, which means new purchases will rely on remaining stock or refurbished units. For engineers designing motor control or transformer protection panels, the 3VU1300-1TK00 offers a compact, integrated option that reduces wiring complexity compared with using separate protective relays and contactors, while preserving the ability to signal fault conditions to PLCs or other controllers.