Some of our largest competitors use a cheaper alumina-ceramic sleeve to make their liners. Although these liners last a little longer than standard chrome-iron liners, they only last about half as long as zirconia-ceramic liners. Our liners are made from zirconia-ceramic material in order to provide the longest life and best wear performance.
Features include:
90 – 92 Rockwell C bore hardness
Zirconia-Ceramic sleeve press fit and honed to size
Ceramic sleeve press fit and secured by safety lip
Forged steel hull
Available in sizes from 4-1/2″ to 7″
Significantly outlasts inferior alumina-ceramic liners
Zirconia-Ceramic Liners
Related products
Air Circuit Breakers
Schneider Electric Moulded Case Circuit Breakers LV563315
Schneider Electric Earth Leakage Circuit Protector A9D60616
Schneider Electric Earth Leakage Circuit Protector A9D11225 
