3RT1975-5AR31

Siemens 3RT1975-5AR31 Replaceable Coil 440-480V AC/DC Applicable to S12 Frame
Siemens 3RT1975-5AR31 Replaceable Coil 440-480V AC/DC Applicable to S12 Frame

The 3RT1975-5AR31 is a 440-480V AC/DC replaceable coil suitable for S12 frame large contactors. It is universal for 50/60Hz, with a holding power of only 9.2VA and excellent power saving characteristics.

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Siemens 3RT1975-5AR31 Replaceable Coil 440-480V AC/DC Applicable to S12 Frame
Product Positioning

The 3RT1975-5AR31 is a replaceable operating coil for Siemens SIRIUS S12 base-mounted large contactors (3RT107, 3RT127, 3RT147 series). Rated voltage is 440-480V, and it can be driven by 50Hz or 60Hz AC power or a corresponding DC power supply. It is suitable for heavy industrial or North American systems using 440V control voltages. The coil has an apparent starting power of approximately 830VA, which decreases to approximately 9.2VA after stable holding, with a power factor of approximately 0.9, balancing strong starting power with energy-saving performance during extended operation.

Core Product Advantages and Features
440-480V high voltage specifications
Rated voltage 440-480V, corresponding to 50/60Hz dual frequency, suitable for high voltage control power supply environments.
Holding power as low as 9.2VA
The apparent power at startup is about 830VA, and after stable holding, it is only about 9.2VA. The heat generation and power consumption are low even after long-term power-on.
Compatible with SIRIUS S12 base
It is compatible with large contactors such as 3RT107, 3RT127, and 3RT147, and is a spare part with a common coil in the same series.
Screw terminal wiring
The wiring method is consistent with that of other products in the same series, which facilitates unified construction by maintenance personnel.
project Specification
Product Type Replaceable coil (switching operating mechanism), incomplete contactor
Rated control voltage 440-480V
Applicable frequency 50Hz/60Hz (AC), corresponding DC
Apparent power of inhalation Approximately 830VA
Absorption of power Approximately 9.2 VA
Power factor Approximately 0.9 (emotional)
Applicable contactor base S12
Applicable models 3RT107, 3RT127, 3RT147 series
Wiring method Screw terminals
brand Siemens

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