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The ATSI SST-450 Surge Suppressor Tester is designed to quickly and easily test all
commonly used transient voltage suppressors: metal-oxide varistors (MOVs), gas-discharge tubes (GDTs), silicon avalanche diodes (SADs), thyristor surge protective devices (TSPDs), and hybrid devices.
The tester's 1mA DC current source up to 1000 volts has both peak and average-reading detection to provide complete test parameters for both crowbar and clamp devices. Measurements are displayed with a 0.1V resolution.
The tester is capable of testing suppressors with a filtering capacitor up to 200uF.
An adapter box is also available for plug-in style suppressors.
The adapter box will accommodate testing of the EDCO PC642 series, EDCO SHA-1250 series, EDCO MPA-303-6, EDCO MRA-6LC-6 and the WDCO SRA-2LP.

SST Adapter Module, Model ST-AB-01, For “Plug-in style” suppressors such as:  PC642, SHA-1250, MRA6LC-6, MPA303-9 & MPA303-6

Surge Suppressor Tester (SST) 450