FR-A10010 Non Monitored. Fire rated standard magnet by ICS security, suitable for FD30 and FD60 fire doors, with an operating voltage of 12 or 24 Vdc. This magnet is available either monitored or non monitored, with a holding force of 544kg and an operating temperature between -10°C & 55°C (14°F & 131°F).. 544Kg holding force. Aluminium housing. 12 or 24 Vdc operating voltage. Humidity 0 to 95% non-condensing