AC Current Shunts

<100 mA to 100 A, dc to 100 kHz
True Coaxial Construction
Excellent ac/dc Conformance

Ohm-Labs’ CSA series of ac current shunts are designed as laboratory standards for ac current measurement up to high frequencies.

CSA shunts are optimized for 1 volt output. Standard models provide overlapping ranges to cover nearly all measurement applications.

Up to 0.1 A, specially constructed foil elements provide low inductance and flat frequency response.

Above 0.1 A, unlike other commercially available ac shunts, which use chip resistors in a ‘cage’ construction, Ohm-Labs uses a true coaxial foil design, which has been demonstrated to provide closer ac/dc conformance up to 100 A at 100 kHz.

Careful heat treatment and characterization of the strip resistance alloy produces a near zero temperature coefficient, minimal change with applied power, and excellent dc performance.

All models have BNC female connectors for potential. Current connections may be either male or female. Up to 0.1 A, current connections are BNC. Models from 0.2 A to 10 A use type N current connectors. 20 A and above models use LC current connectors.

All shunts include calibration through full current dc and up to 100 kHz ac.

A coaxial Tee is available for inter-comparison.

Non-standard values are available by special order.

All Ohm-Labs shunts are warranted for two years.

Model

Rated Amps

Nominal
Resistance

Millivolts at
Rated Current

Rated
Power

Accuracy*

Dimensions

Weight