Siemens MBDC-6 Motor Bell

Siemens MBDC-6 Motor Bell Product Overview
– High sound output with a low current draw
– Low-frequency aluminum shells for better audibility through walls, doors
and other structures
– 6” and 10” shell sizes in 24 VDC models
– Integral RFI suppression to minimize induced noise on the NAC circuit
– Mounting options for surface, semi-flush, outdoor, and concealed conduit installation
– Built-in trim plate makes semi-flush mounting simpler and less expensive
– Screw terminals permit fast In / Outfield wiring of #12 to 18 AWG wire
– Polarized for DC supervision of NAC circuits
– Operates on filtered or unfiltered DC
– For combined audible (bell) and visual signaling, a convenient retrofit plate
assemblies are available with multi-Candela strobes
– UL Listed & ULC Listed
FM, CSFM & NYCFD Approved

Siemens MBDC-6 Motor Bell Specifications
– Alarm appliances shall be Siemens Series MB vibrating Motor Bells or approved equal
– Alarm appliances shall be UL Standard 464 Listed for Fire Protective Service
– Shells shall be aluminum in 6” or 10” diameter
– Sound output at 10 feet shall be 92 dBA anechoic
– Bells shall incorporate a permanent magnet motor and suppression circuitry
to minimize RFI

–Mounting options for surface, semi-flush, outdoor, and concealed conduit installation

— Polarized for DC supervision of NAC circuits

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