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310LD-MV AudioMaster® Light Duty Two-Way Intercom

  • Multi-voltage design accepts 24VDC, 120VAC and 240VAC
  • Balanced line output
  • Gain control
  • Remote device activation
  • Type 1, IP10 enclosure
  • UL Listed and CSA Certified

Federal Signal's AudioMaster® light-duty industrial intercom provides reliable two-way communications and superior sound quality.

The AudioMaster 310LD-MV's standard features include internal volume control, balanced line output, Type 1 wall mount housing, integrated call/listen/talk switch, remote device activation, and the ability to power another intercom at 24VDC.

310LD-MV operates from -31ºF to 150ºF (-35ºC to 66ºC) for indoor applications. An integrated remote device activation feature allows you to activate an auxiliary signal such as a horn or light. The AudioMaster 310LD-MV 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.

The AudioMaster Model 310LD-MV is UL Listed and CSA Certified.

The Model 310LD-MV is ideal for office environments and other dry, non-hazardous locations or anywhere reliable two-way communication is important for a safe efficient operation.


Part # Description Ship Weight Net Weight  
310LD-MV Intercom, 24VDC/120VAC, light duty, wall mount 3.9 lbs. 3.2 lbs. Add to Quote >


Part # Description Ship Weight  

Replacement Parts

Description Part #  
PC Board Assembly K2001290B Add to Quote >
Switch K122283A Add to Quote >
Resistor, 1K, 1W K101216A Add to Quote >
Fuse, F1, 250V K144A125A Add to Quote >


Listed By Underwriter's Laboratory (ULus)
Commercial audio and radio equipment, systems and accessories AZJX_E61713.pdf
Certified by CSA International
Signal appliances, audible 4812_04_1401047.pdf





120VAC 50/60Hz

240VAC 50/60Hz

Mount Wall
Operating Current

120 mA at 24VDC

80 mA at 120VAC

40 mA at 240VAC

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

60 mA at 24VDC

60 mA at 120VAC

30 mA at 240VAC

Frequency Response 150Hz-12KHz
Input Impedance 3400 Ohms
Speaker Rating 2-Watts
Enclosure Rating Type 1
Ingress Protection (IP) IP10
Height 8 IN
Width 6.88 IN
Depth 3.02 IN
Federal Signal distributed by Gross Automation - Brookfield, WI - Phone: (262) 252-1600 - Fax: (262) 252-1616
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