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310-MV-MNC AudioMaster® Two-Way Intercom with Noise Cancelling Microphone

  • Multi-voltage design accepts 24VDC, 120VAC and 240VAC
  • Heavy-duty industrial intercom
  • Noise canceling microphone
  • Balanced line output
  • Type 3R enclosure
  • UL Listed, CSA Certified, and Marine Listed

Federal Signal's AudioMaster® 310-MV-MNC is a two-way industrial intercom that provides reliable communications and superior sound quality.

The AudioMaster 310-MV-MNC's standard features include volume control, call button, balanced line output, listen/talk switch, remote device activation, and the ability to power another intercom at 24VDC.

This heavy duty intercom will operate from -31ºF to 150ºF (-35ºC to 66ºC). The remote device activation feature allows you to activate an auxiliary signal such as a horn or light. The AudioMaster 310-MV-MNC requires 24VDC, 120VAC or 240VAC to power each unit. The intercom is easy to operate. Press the switch down to talk and release to listen.

When the ambient noise level is too high for the standard 310-MV integrated microphone, the 310-MV-MNC noise canceling unit is used to improve transmission quality.

The 310-MV-MNC is ideal for use at oil refineries, petrochemical plants, offshore platforms, pulp and paper mills, water treatment facilities, airports, shipyards or anywhere reliable two-way communication is important for safe, efficient operation.


Part # Description Ship Weight Net Weight  
310-MV-MNC Intercom, 24VDC/120VAC/240VAC, industrial, wall mount, microphone 12 lbs. 10.1 lbs. Add to Quote >


Part # Description Ship Weight  

Replacement Parts

Description Part #  
PC Board Assembly K2001915B Add to Quote >
Connector, 10 Pin K140A326A-01 Add to Quote >
Resistor, 1K, 1W K101216A Add to Quote >
Fuse, 250V, 1 Amp K148A155A-01 Add to Quote >
Fuse, 250V, 1/2 Amp K148A155A Add to Quote >
Kit, Potentiometer K8590237A Add to Quote >
Kit, Toggle Switch K122A298A Add to Quote >
Kit, Call Button and Boot K8590241A Add to Quote >
Gasket, Rubber K8590013B Add to Quote >
Microphone MNC-MC Add to Quote >


Listed By Underwriter's Laboratory (ULus)
Signal appliances, miscellaneous UEHX_E94581.pdf
Signal appliances, Marine UXPL_E12629.pdf
Certified by CSA International
Signal appliances, audible 4812_04_1401047.pdf





120VAC 50/60Hz

240VAC 50/60Hz

Mount Wall
Operating Current

260 mA at 24VDC

163 mA at 120VAC

82 mA at 240VAC

Operating Temperature Min. -31 F
Operating Temperature Max. 150 F
Standby Current

62 mA at 24VDC

70 mA at 120VAC

35 mA at 240VAC

Frequency Response 150Hz-12KHz
Input Impedance 3400 Ohms
Speaker Rating 30-Watts
Enclosure Rating Type 3R
Height 9.88 IN
Width 6.5 IN
Depth 5 IN
Federal Signal distributed by Gross Automation - Brookfield, WI - Phone: (262) 252-1600 - Fax: (262) 252-1616
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