SIEMENS 3RT1916-2LD21 Product Description

SIEMENS 3RT1916-2LD21 is a dedicated surge suppressor designed for SIRIUS 3RT series size S00 contactor coils. This surge suppressor absorbs inductive kickback voltage generated when contactor coil power cuts off. The clip-on surge suppressor can be directly mounted on contactor coil terminals without extra brackets. This surge suppressor protects nearby PLC and sensors from voltage spike interference.

3RT1916-2LD21 provides reliable inductive spike absorption to suppress high transient voltage during coil de-energization. Efficient inductive spike absorption reduces electromagnetic noise inside control cabinets. Stable inductive spike absorption prevents false triggering of nearby low-voltage automation components. Dependable inductive spike absorption extends service life of contactor coil and surrounding circuit parts.

This unit adopts compact clip mounting structure for fast installation on S00 frame contactors. The simple clip mounting allows technicians to assemble and replace it rapidly on site. Secure clip mounting stays fixed under cabinet vibration and temperature changes. This convenient clip mounting requires no additional wiring modification.

SIEMENS 3RT1916-2LD21 is widely used in machine tools, conveyor systems, packaging machinery and automated control panels. It is matched with SIRIUS 3RT10 series S00 contactors for EMC improvement. Small size design saves cabinet installation space. It serves as original spare accessory for maintenance of industrial motor control circuits.