Automatic closing fire protection No need to reset spring tension or re-engage the operator after testing Normal or automatic speed is consistently controlled for safer exiting The MM Redi-Reset door operators use highly efficient planetary gearing which can be driven backward or forwards. |  |
A centrifugal governor and constant hold break upon release automatically allows the fire door to close in the event of:
Power Failure
Fire Alarm Signal
Break of Fusible Link
Activation of True-Test Panel
Our Redi-Reset electric motor system operator is built into our Auto Fire-Tite and Fire-Shut doors. The system never needs to be mechanically reset and features easy system testing at the floor level. The MM utilized highly efficient planetary gearing. It boasts UL listed thermal overload protection, electric brake and rotary limit switches, transformer with 24 volt secondary. All components are prewired to terminal block. Operator is standardly configured as non-fail safe (MMN), fail safe (MMF) is optional.
Automatic resetting of the automatic closing system will have savings for building owners in testing and resetting costs,
Fire Door Listing, UL Classified 4 HR, 3 HR, 11/2 HR, 1 HR and 3/4 HR labels and Factory Mutual Approval, see FM Approval Guide. Also Coiling fire doors can be designed to meet specific PSF wind load requirements.
Horsepower: 1/3, 1/2, 3/4, 1 1/2, 2, 3, 5
Voltage: 110, 220/230, 460
MODEL | HP | VOLT | PHASE | AMPS | FT LBS/SEC |
MM-31 | 1/3 | 110 | 1 | 6.0 | 100 |
MM-32 | 1/3 | 220 | 1 | 3.0 | 100 |
MM-33 | 1/3 | 260 | 3 | 2.5 | 100 |
MM-34 | 1/3 | 460 | 3 | 1.5 | 100 |
Optional Obstruction Sensing Edge The MT21 pressure sensitive electric edge is custom manufactured to your exact specifications for length, width, height and sensitivity. When touched lightly or at an angle, the MT21 will send an immediate electrical signal to your controls to stop, and/or reverse operations. It is completely flexible and will contour curved surfaces. |  |
