ST112A/ST106A/ST103A - Surge and HiPot tester

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Proven reliability combined with rugged construction keeps these testers operating in the shop or in the field.

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Greater current resolution for Polarization Index/Dielectric Absorption tests and during HiPot testing.
Total tester control from the front panel and easily accessible connectors.
All leads grounded selector position helps ensure operator safety.
Zero start interlock ensures operator safety and a low initial voltage to prevents insulation damage.
Versatility makes this tester an essential component for both corrective and predictive maintenance procedures. The capability to test insulation systems of coils and windings makes this unit ideal for use on motors, generators, transformers, chokes, solenoids, and a variety of other coils.
Autoranging overcurrent trip settings (low trip at 10  µAmps), and visual overcurrent warning indicator.
Leakage current displayed on CRT gives a quick indication of faults, provides real-time visual references for controlling high-voltage testing.
Specially designed CRT display circuits are built for maximum reliability in the shop or in the field.