Siemens 3VU1300-1MF00 Motor Overload Relay With Auxiliary Contact Block

Siemens 3VU1300-1MF00 is a motor protection circuit breaker that combines overload protection with an integrated auxiliary contact block, engineered for motors up to 25 A and designed to work within Siemens’ 3VU motor protection ecosystem. It includes one normally open and one normally closed auxiliary contact (1NO + 1NC) for signaling or interlocking, and features screw-terminal connections for straightforward wiring. The unit provides an adjustable overload release with a fixed magnetic trip, and its auxiliary switch block supports control circuits without requiring a separate device. The A-release operates in the 0.6–1 A range, while the N-release is rated at 12 A, enabling reliable protection and clear feedback for motor control logic. Compatible with other 3VU-series components, it’s suited for compact motor-start panels and motor control centers where integrated protection and signaling simplify wiring and diagnostics. This Siemens MPCB delivers a single compact solution for protecting three-phase motors while supplying essential control contacts for interlock and status indication.