Product Introduction
The TZG40 Series replacement modules are designed for use in compatible surge protective devices (SPDs), offering flexible voltage and current ratings for both AC and DC applications. Available in types B, C, D, and PV, these modules support DC voltages from 500V to 1500V, AC voltages of 275V, 385V, or 420V, as well as an NPE (Neutral-to-Earth) version. Rated discharge currents range from 10-20kA to 30-60kA depending on the model. A built-in visual indicator turns red when the module has degraded and requires replacement. Note: These modules are not compatible with the TOV1 series surge protectors, and the NPE module is intended exclusively for NPE-type SPDs.
Product Data Sheet
Product series: TZG40
Types: B, C, D, PV
Application: AC/DC replacement module
Rated DC voltages: 500V, 600V, 800V, 1000V, 1200V, 1500V
Rated AC voltages: 275V, 385V, 420V, NPE
Rated current (discharge) options: 10-20kA, 20-40kA, 30-60kA, 20-50kA
Indicator: Red when module needs replacement
Compatibility: Not for TOV1 series surge protectors
NPE module usage: Only for NPE surge protectors












