Type 1 surge arrester TY1 series

for power suppliesmodularcompact

TY1 are metal oxide surge arresters in a modular housing. TY1-F are compact metal oxide surge arresters with an integrated backup fuse. Both types are designed to be installed in the main junction box, serving as the initial level of protection against surges. Characteristics The disconnecting device reacts: • when the current passing through the arrester during normal operation exceeds 1 mA, • in case of an atmospheric discharge (when the current exceeds 100 kA). Once the disconnecting device is activated, the visual indicator turns red. In such instances, it is necessary to replace the TY1 module. For TY1-F surge arresters, the complete surge arrester should be replaced in similar cases. Installation The position for installing TY1 and TY1-F surge arresters is determined on directives and technical regulations. They must be installed into junction boxes.