The Helios BAE 200 fire shutter provides effective prevention against fire and smoke transmission in ventilation shafts or walls designated as fire sections. Certified to meet the fire resistance class K90-18017, this shutter is engineered for secure installation into spiral duct systems or directly into walls with the use of the EH mounting sleeve accessory. Designed for long-term reliability, the BAE 200 requires no maintenance, ensuring continuous fire protection with minimal effort.