Wherever electrical safety depends on the ability of a test instrument to indicate if a circuit is live or isolated‚ best practice demands that the test device is checked before and after use.
Seaward’s range of proving units meets this requirement by providing a safe and simple means of proving the voltage indicating ability of potential indicators‚ test lamps and multimeters.
Designed to suit a range of applications in the electrical contracting‚ power utilities and industrial engineering sectors‚ Seaward proving units are both self-powered and self-testing‚ avoiding the need for a known supply point or bulky test equipment.
There are 3 products that match your filter criteria
PH3-LLT is a lightweight compact proving unit providing a nominal output voltage of 500V DC. Output Voltage - 500V DC nominal Output current - 0.45mA into 2kohm View Product
A range of compact proving units essential for testing potential indicators before and after use. All products in the range feature internal battery supply so the use of a known supply point or bulky test equipment is avoided. View Product