PT1 Series STABILINE® Transient Voltage Surge Suppressors deliver worry-free performance with an innovative and proven technology design. The tested single-pulse surge current capacity (per mode) meets NEMA recommendations. Sand-packed MOV arrays equally share current to suppress transients before they reach sensitive loads while capacitors filter out high frequency noise and low-level transients. The PT1 Series is designed and tested to withstand surge currents in accordance with ANSI/IEEE recommendations