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Federal Signal 310X-MV - AudioMaster Two-Way Intercom, Hazardous Location, UL and cUL CID2, Multi-voltage 24VDC or 120-240VAC

Federal Signal 310X-MV AudioMaster Two-Way Intercom, Hazardous Location, UL and cUL CID2, Multi-voltage 24VDC…

Alternate Item Number: 310x-mv-audiomaster-haz-loc-two-way-intercom

UPC: 782979391036


Documents & Media
Installation InstructionsLine DrawingSpecification SheetWarranty

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Federal Signal AudioMaster 310X-MV is a rugged two-way intercom engineered for hazardous locations requiring reliable communication in explosive atmospheres. Certified under UL and cUL Class I, Division 2, Groups A-D; Class II, Division 2, Groups F-G; and Class III, this unit meets stringent safety standards for Classified hazardous areas. Its multi-voltage design accepts either 24VDC or 120-240VAC power inputs, providing exceptional versatility for integration with diverse industrial power systems. The intercom delivers crystal-clear audio transmission with a 150Hz-12kHz frequency response, ensuring effective communication even in high-noise environments. A 25-watt speaker and 3400-ohm input impedance provide robust sound quality while maintaining low standby current (62mA DC, 70mA AC) for energy efficiency. The heavy-duty Type 4X/IP65 enclosure resists dust, moisture, and mechanical shock, guaranteeing long-term reliability in demanding indoor and outdoor applications. Operating from -31°F to 150°F (-35°C to 66°C), the 310X-MV is ideal for oil refineries, petrochemical plants, offshore platforms, pulp and paper mills, water treatment facilities, shipyards, and airports. Standard features include volume control, a call button for personnel alerting, a listen/talk toggle switch for intuitive operation, balanced line output, and auxiliary remote device activation (horn/light). The conformal coated PCB enhances durability in corrosive environments. With dimensions of 9.88"H x 6.50"W x 5.00"D and a net weight of 9.9 lbs, the intercom mounts easily to walls or panels. Marine Listed and CSA Certified, the 310X-MV provides dependable two-way communication where safety and operational efficiency are critical.
  • Multi-voltage operation: 24VDC or 120-240VAC input
  • UL/cUL Class I, II, III Division 2 certified for hazardous locations
  • Type 4X/IP65 dust- and water-tight enclosure (-31°F to 150°F operation)
  • 25-watt speaker with 150Hz-12kHz frequency response
  • Auxiliary remote device activation (horn/light) and balanced line output

Specifications

-31 to 150
DEG F
24, 120, 240
VAC/VDC
24VDC, 120VAC, 240VAC
V
5.0
IN
6.5
in
9.88
IN
Application
Indoor/Outdoor
Brand Name
Federal Signal
Enclosure
Type 4X, IP65
Frequency Response
150 Hz - 12 kHz
Height
9.88 in
Height
250.952 mm
IP Rating
IP65
Length
5 in
Length
127 mm
Material
Heavy-duty, dust- and water-tight enclosure
Mounting
Wall
Nema Rating
Type 4X
Number Of Lines
One
Operating Current
0.465 @ 24VDC/0.163 @ 120VAC/0.082 @ 240VAC AMP
Operating Temperature
-31 to 150 DEG F
Operating Temperature, Maximum
150 F
Operating Temperature, Maximum
65.5556 C
Operating Temperature, Minimum
-31 F
Operating Temperature, Minimum
-35 C
Operating Voltage
24VDC/120VAC 50-60Hz/240VAC 50-60Hz
Series
AudioMaster
Special Features
Balanced Line Output
Standard
CSA,Marine,UL,cUL
Standard
UL Listed/cUL Listed/CSA Certified/Marine Listed
Sub Brand
AudioMaster
Type
Hazardous Location Two-Way Intercom
Voltage Rating
24, 120, 240 VAC/VDC
Width
6.5 IN
Width
165.1 mm
Package Dimensions (L x W x H)
15.25 IN x 8.75 IN x 8 IN
Package Dimensions (L x W x H)
38.735 cm x 22.225 cm x 20.32 cm
Package Weight (Imperial)
12.000 L
Package Weight (Metric)
5.443 kg
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Frequently Asked Questions

What are the power requirements for the 310X-MV intercom?

The 310X-MV features a multi-voltage design, accepting 24VDC, 120VAC 50/60Hz, and 240VAC 50/60Hz power inputs.

What is the operating temperature range for the intercom?

The intercom operates reliably from -31°F to 150°F (-35°C to 66°C), suitable for both indoor and outdoor use.

What are the dimensions of the 310X-MV intercom?

The intercom measures 9.88 inches in height, 6.50 inches in width, and 5.00 inches in depth.

What are the hazardous location ratings for the 310X-MV?

It is UL and cUL Listed for Class I, Division 2, Groups A, B, C, D; Class II, Division 2, Groups F, G; and Class III.

What type of enclosure does the 310X-MV have?

The 310X-MV features a Type 4X, IP65 enclosure, providing dust- and water-tight protection.

What is the speaker rating for the 310X-MV?

The 310X-MV intercom has a speaker rating of 30 watts.

What is the frequency response of the intercom?

The frequency response of the 310X-MV intercom is 150Hz-12KHz (-6dBA).

How much does the 310X-MV intercom weigh?

The net weight of the 310X-MV intercom is 9.9 lbs (4.5 kg), with a shipping weight of 11.5 lbs (5.2 kg).

What is the standby current for 120VAC operation?

When operating on 120VAC 50/60Hz, the standby current for the 310X-MV is 70 mA.

What is the input impedance of the 310X-MV?

The input impedance for the 310X-MV intercom is 3400 Ohms across all voltage options.

How to Install the 310X-MV Intercom

This guide provides step-by-step instructions for installing and configuring the 310X-MV intercom system, ensuring proper functionality in industrial applications.

Estimated time: 1h

Tools needed:

Screwdriver, Wire strippers, Multimeter, Long nose pliers

Supplies needed:

Mounting screws, Lockwashers, Terminal connectors, 1/2 A fuse

  1. Mount the intercom

    Select a flat and rigid surface for installation. Secure the intercom using the two mounting ears with appropriate screws, ensuring it is level and firmly attached.

  2. Connect the wiring

    Disconnect power before connecting any wires. Use the terminal block to connect the power supply to pins 4 (positive) and 5 (negative). Ensure that the wiring follows Class I, Division 2 methods as specified.

  3. Configure the operation mode

    To set the intercom to Secondary mode, disconnect power and move the J2 jumper from the MAS to the SLA position. Adjust the Listen/Talk switch to the talk position by rotating it 180 degrees and securing the rubber boot.

  4. Test the intercom

    Reconnect power and use a multimeter to verify that the power supply is correctly connected. Test the intercom functionality by pressing the call button and ensuring that the signal is transmitted correctly.

  5. Calibrate the system

    Adjust the volume control on the intercom to ensure optimal sound levels. Test the intercom by communicating through it to confirm that both sending and receiving functions work properly.

Frequently Asked Questions about Federal Signal

What certifications and standards do Federal Signal products comply with?

Federal Signal products are certified across multiple international standards, including UL (Underwriters Laboratories) in the USA, CSA (Canadian Standards Association), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia and New Zealand). Their products meet rigorous safety and performance standards for industrial environments, with specific compliance in electrical equipment enclosures, functional safety, and environmental protection ratings.

What is Federal Signal's warranty policy?

Federal Signal offers a comprehensive limited warranty covering most products for 1-5 years from the date of delivery, with specific terms varying by product category. Mechanical sirens, beacons, speakers, and sounders typically receive 5-year parts and labor coverage, while electronic sirens and controllers generally have 2-year warranties. All warranties require return to the factory for service, and on-site services are not included. Certain components like domes, lenses, lamps, and batteries are specifically excluded from warranty coverage.

What industries and applications are Federal Signal products used for?

Federal Signal products are used across multiple critical industrial and municipal sectors for notification, communication, and safety systems. Their product lines cover essential applications including fire alarm systems, public address and telephony, outdoor warning systems, visual and audible signals, and emergency communication networks. Key industries served include manufacturing, municipal emergency services, industrial facilities, and infrastructure environments where clear, reliable communication and safety signaling are paramount.

What technical support does Federal Signal offer?

Federal Signal offers comprehensive technical support through their dedicated [email protected] email and direct phone line at +1 708.534.4756. Their support covers a wide range of notification and communication solutions, including technical assistance for products in public address, telephony, fire alarm, visual and audible signals, outdoor warning systems, and intercoms.

What are the main product lines offered by Federal Signal?

Federal Signal offers comprehensive notification and communication solutions across multiple product lines, including Visual Signals, Audible Signals, Telephony, Intercoms, Fire Alarm, Outdoor Warning Systems, Public Address, and Initiating Systems. Their product range is designed to provide clear communications and critical process notifications that enhance safety and compliance in industrial and public environments.

What are the key features of Federal Signal products?

Federal Signal products are comprehensive notification solutions designed to enhance safety and communication across industrial environments. Their key features include visual and audible signals, fire alarm systems, outdoor warning systems, public address capabilities, telephony, and intercoms. These products provide critical process notifications, ensure safety compliance, and offer advanced technologies like secure encrypted communication, cloud-based control systems, and customizable emergency response interfaces.

What environmental ratings do Federal Signal products have?

Federal Signal products offer robust environmental ratings across multiple standards, including UL 508A, CSA, NEMA, and IEC 60529. Their enclosures are rated for Type 1, 2, 3, 4, 4X, 12, and 13 environments, with IP66 protection, and can operate in temperatures ranging from -40°F to 266°F. These ratings ensure superior protection against dust, water, corrosion, and extreme conditions for indoor and outdoor industrial applications.

What accessories are available for Federal Signal products?

Federal Signal offers multiple accessories for their signaling products, including coupling kits, cable entry adapters, indicator rings, legend plates, and mounting brackets. Key accessories include E-Box endcap kits with M20 and M25 openings, U-Brackets for dual configurations, and color-coded indicator rings in black, blue, green, magenta, red, and yellow. Additional options like adapters for NPT connections and specialized mounting hardware are also available for their Global Series signaling platforms.

What communication protocols do Federal Signal products support?

Federal Signal supports multiple industrial communication protocols including PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, and Modbus RTU. These protocols enable flexible network integration across various industrial automation environments, supporting both traditional fieldbuses and modern Ethernet-based communication standards.

How are Federal Signal products typically installed?

Federal Signal products are typically installed using professional mounting configurations that include wall brackets, base stations, and specialized mounting hardware. Depending on the specific product line—such as outdoor warning systems, visual signals, or audible signals—installation involves precise mounting options like wall-mount antenna brackets, base station radio packages, and modular component assemblies. Each product configuration includes specific mounting accessories like endcaps, adapters, and terminal blocks to ensure secure and compliant installation in industrial and safety-critical environments.