Current Shunts

Guildline Instruments manufactures a wide range of AC and DC current shunts designed for the highest precision and accuracy that meet the most demanding applications. The 7350 series of four-terminal AC Current Shunts are patent pending units and feature a non-inductive design. With a rugged and shielded enclosure, the 7350 series shunts are constructed with very small values of reactance. They are ideal for use over a wide frequency range from DC to 100 kHz with low uncertainty, low temperature coefficients and excellent stability. The 9211B DC precision shunt is the world’s most widely fielded multi-tap shunt available, a four-terminal precision shunt designed to measure current in nine ranges from 10 μA to 300 A while continuing to provide high performance specifications. The 9230A series of DC current shunts/standards are true 4-terminal devices intended for the precise measurement of DC current. The design includes special features to reduce the effects of power dissipation and associated self-heating errors.

  • Guildline Instruments 7350 series of four-terminal AC Current Shunts are high-accuracy, high stability non-inductive shunts in a ruggedized and shielded enclosure. The 7350 series shunts are constructed with very small values of reactance and are ideal for use over a wide frequency range from DC to 100 kHz with uncertainty down to 35 ppm, low temperature coefficients and excellent stability. To suit a wide range of customers and applications, the 7350 Series shunts provide power dissipation capability of up to 10 Watts and a maximum current capability up to 25A. For best performance, the model 73401 Forced Convection Unit is available for forced aircooling.
  • Guildline Instruments model 9211B is a four-terminal bench-top or rack-mount instrument designed for convenient measurement of current in nine ranges from 10 mA to 300 A. All connections and adjustments are accessible on the front panel. Range selection is made by means of two brass plugs inserted into the ports on the panel. NSN: 6625-20-009-3629
  • Guildline Instruments 9230A series of precision DC current shunts are true 4-terminal devices intended for the ultra-precise measurement of DC current. They are constructed from specially selected elements supported on an insulating base for mechanical stability. These units are covered with a perforated metal shell to allow proper cooling while providing physical protection of the elements. Available Forced Convection option allows improved thermal dissipation and higher current measurements. Models are available for current measurement ranges from 5A up to 12,000 A with custom ranges available. The optional forced air attachment extends the measurement range of the unit by a factor of two.

Go to Top