3RT1955-5AD31

Siemens 3RT1955-5AD31 Contactor AC Drive Coil Operating Mechanism 42-48V AC/DC
Siemens 3RT1955-5AD31 Contactor AC Drive Coil Operating Mechanism 42-48V AC/DC

The 3RT1955-5AD31 is an AC drive device (coil operating mechanism) used in S6 frame 3RT105/3RT145 contactors. It operates on 42-48V AC/DC and features a standard power-saving circuit and screw terminal design.

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Siemens 3RT1955-5AD31 Contactor AC Drive Coil Operating Mechanism 42-48V AC/DC
Product Positioning

The 3RT1955-5AD31 is the coil operating mechanism used in Siemens SIRIUS large contactors 3RT105 and 3RT145 (S6 frame). In Chinese distributor information, it is referred to as an "AC drive unit." Rated voltage is 42-48V, supporting both AC 50/60Hz and DC operation. It is a lower voltage version in the series, suitable for maintenance and replacement of extra-low voltage (SELV/PELV) control circuits or existing low-voltage control systems. This product features a standard energy-saving circuit design and screw terminals, allowing maintenance personnel to directly replace the coil module without replacing the entire S6 frame large contactor.

Core Product Advantages and Features
42-48V low voltage version
With a rated voltage of 42-48V, it is the lowest voltage version among the coil operating mechanisms in the same series, making it suitable for low-voltage control circuit applications.
Standard power-saving circuit
It adopts an energy-saving circuit design to reduce power consumption and heat generation during the holding stage.
Replaceable coil module
The coil can be replaced independently, eliminating the need to replace the entire S6 frame large contactor in case of failure, thus saving on spare parts costs.
Screw terminal wiring
The use of screw terminals ensures stable wiring and is suitable for long-term operation in industrial distribution boxes.
project Specification
Product Type Contactor coil operating mechanism (AC drive device, incomplete contactor)
Applicable contactors SIRIUS 3RT105 and 3RT145 series (S6 frame)
Rated operating voltage AC 42-48V (50/60Hz) / DC 42-48V
Operating mechanism type Standard, energy-saving circuit
Terminal type Screw terminals
brand Siemens SIRIUS
Remark Limited information is available on certain specifications of this model (such as net weight and packaging dimensions). For complete data, please contact Kenxin Motor for assistance.

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