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310X-MV AudioMaster® Hazardous Location Two-Way Intercom

  • Multi-voltage design accepts 24VDC, 120VAC and 240VAC
  • Heavy-duty industrial intercom for indoor or outdoor applications
  • Balanced line output
  • Rated for Class I, Division 2
  • Type 4X, IP65 enclosure
  • UL and cUL Listed, CSA Certified, and Marine Listed

Federal Signal's AudioMaster® 310X-MV is a two-way industrial intercom that provides reliable communications and superior sound quality. This unit has a rugged Type 4X housing and is rated for Class I, Division 2, Groups A, B, C, & D; Class II, Division 2, Groups F & G; and Class III.

The AudioMaster 310X-MV's standard features include volume control, call button, balanced line output, dust- and water-tight housing, 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) for both indoor and outdoor applications. Remote device activation allows you to activate an auxiliary signal such as a horn or light. The AudioMaster 310X-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 is UL Listed and CSA Certified.

The 310X-MV 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 and efficient operation.


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


Part # Description Ship Weight  

Replacement Parts

Description Part #  
PC Board Assembly K2001915B-02 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 >


Listed By Underwriter's Laboratory (ULus)
Signal appliances, miscellaneous for use in hazardous locations UJPX_E84580.pdf
Signal appliances, Marine UXPL_E84580.pdf
Listed By Underwriter's Laboratory For Use In Canada (cUL)
Miscellaneous for use in hazardous locations, certified for Canada UJPX7_E84580.pdf
Certified by CSA International
Signal appliances, miscellaneous, for hazardous locations 4818_03_1398389.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 4X
Ingress Protection (IP) IP65
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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