DC Voltage Transducer S657


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  • Two wire loop powered 4 to 20mA or three wire operation
  • Optical isolation
  • Operating temperature from -40°C to +85°C
  • 0.5% accuracy over temperature
  • Measurement proportional to the absolute value of input
  • Polarity protected
  • Low power operation (24mA Max)
  • 17 Standard Models

Product Description

Model S657 DC Voltage Transducer features an effective, accurate and reliable solution to measure DC voltage. It produces a fully isolated 4 to 20mA current loop, where without and input voltage present the transducer outputs 4mA and at full scale it outputs 20mA proportional to the input voltage.  The transducers are operated in a two wire or three wire loop power configuration and have an input voltage range from ±75mV to ±2000V, with a 5kV AC isolation.  The units can withstand without performance failure or degradation, an overload transient of 6kVdc for 100µ-sec.

The S657 Series delivers high accuracy (±0.5%)  over a temperature range of -40°C to +85°C, operates with a supply voltage from +19Vdc to +32Vdc, is low powered and fast responding.  The unit’s molded construction and internal epoxy encapsulation creates a very durable transducer, withstanding the environments of moisture, humidity, vibration and shock.

The S657DC Voltage Transducer comes standard with a dual connector interface, with mating connectors and pins for easy installation.

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Additional information

Weight 20 oz
Dimensions 3 × 3 × 2 in
Housing Material

Supply Type

Supply Voltage






Voltage Range

±100Vdc, ±10Vdc, ±1200Vdc, ±1500Vdc, ±150Vdc, ±1Vdc, ±2000Vdc, ±20Vdc, ±2Vdc, ±300Vdc, ±500Vdc, ±50Vdc, ±5Vdc, ±60Vdc, ±750Vdc, ±75mVdc, ±75Vdc