The I300ER by CDVI is a monitored mortice maglock with a holding force of up to 300kg cased in high grade stainless steel. The I300ER is a monitored mortice maglock with a holding force of up to 300kg. Cased in high grade stainless steel, with a unique cover plate, this magnet is supplied with a full fixing kit. 300kg holding force Monitored mortice mount maglock Stainless steel construction For use in harsh environments 12-24Vdc