NBG Operators
Product Information
Fire doors are designed to operate to prevent the spread of fire and smoke. The most common type of fire door is the fire shutter, which closes to prevent the spread of smoke and fire. One way a fire shutter can close is Gravity Close with the shutter in the open position the drive shaft must release enabling the shutter to close in a controlled manner. Marantec UK offer the NBG range of fire door operators for gravity close applications.
NBG 1 phase, 0.25kW Motor
NBG 1 and 3 phase, 0.37kW Motor
NBG 1 and 3 phase, 0.55kW Motor
NBG 1 and 3 phase, 0.45kW Motor
Motor Descriptions
Motor Descriptions | Prewire Codes | ||
WGI or GB | Hook on, High Level Handchain Overide System | HLM | High Level Mechanical Limit (MLS) Built On Starter, Prewired |
FLM or KE | Floor Level Handchain Overide System (30mm Kits 9m, 40/50mm, 11m) | LLM | Low Level Mechanical Limit (MLS) Starter, Prewired 6m 12C SY |
HCR or KU | Handcrank Overide System | HLE | High Level Electronic Limit (AWG) Built On Starter, Prewired |
AWG | Electronic Limits | LLE | Low Level Electronic Limit (AWG) Starter, Prewired 6m 12C SY |
MLS | Mechanical Limits |
Discover More
Discover more about the NBG Operators in our online datasheet: