Federal Signal AD-27A-4 - Intercom, 120VAC, T/L Switch, Volume Control, Call Button, Extreme Conditions
Federal Signal

AD-27A-4

Alternate Item Number: ad-27-atkinson-dynamics-intercom

UPC: 782979204930


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Overview

The Federal Signal AD-27A-4 intercom system is engineered to provide robust and reliable two-way communication in the most demanding industrial environments. Designed for critical applications where clear and instantaneous communication is paramount, this unit operates on a standard 120VAC power supply, ensuring broad compatibility and ease of integration into existing electrical infrastructure. Its rugged construction is built to withstand extreme conditions, making it an ideal choice for facilities exposed to dust, moisture, vibration, and temperature fluctuations. At the core of the AD-27A-4's functionality is its intuitive Talk/Listen (T/L) switch. This essential feature allows users to seamlessly transition between speaking and listening modes, ensuring efficient and unambiguous communication flow. The integrated volume control offers precise adjustment, enabling operators to set audio levels for optimal clarity, even in noisy industrial settings. Furthermore, the unit features a durable call button, specifically designed for frequent use and resilience against impact and environmental wear. This ensures that initiating communication is always a reliable action, regardless of the operational context. The Federal Signal AD-27A-4 is more than just an intercom; it's a vital component for enhancing operational safety and efficiency. Its applications span a wide range of industries, including manufacturing plants, heavy industrial facilities, processing plants, mining operations, and outdoor industrial sites. In these environments, the ability to quickly communicate with personnel, coordinate tasks, and respond to emergencies can significantly impact productivity and safety outcomes. The intercom's industrial-grade build quality, a hallmark of Federal Signal products, guarantees long-term performance and minimal maintenance, reducing downtime and operational costs. Key features of the Federal Signal AD-27A-4 include: * **120VAC Operation:** Standard power requirement for easy installation. * **Talk/Listen (T/L) Switch:** Intuitive control for clear two-way communication. * **Volume Control:** Precise adjustment for optimal audio clarity in any environment. * **Rugged Call Button:** Designed for durability and reliable activation in harsh conditions. * **Extreme Conditions Rating:** Built to withstand challenging industrial environments. When selecting an intercom system for industrial applications, reliability, durability, and ease of use are non-negotiable. The Federal Signal AD-27A-4, with its proven track record and commitment to quality, delivers on all these fronts. Its compact design facilitates versatile mounting options, and its straightforward operation means minimal training is required for personnel. Trust Federal Signal, a recognized leader in signaling and communication solutions, to provide the dependable intercom system your operations require. The AD-27A-4 (SKU: AD-27A-4) represents a sound investment in operational continuity and safety.
  • Robust two-way communication for demanding industrial environments
  • 120VAC operation for easy integration into existing power systems
  • Intuitive Talk/Listen (T/L) switch for seamless communication control
  • Adjustable volume control ensures clear audio in noisy settings
  • Durable call button designed for frequent use and harsh conditions

Specifications

-31 to 150
DEG F
5.03
IN
6.5
in
9.88
IN
Application
Indoor/Outdoor
Brand Name
Federal Signal
Enclosure
Type 4X
Frequency Response
320 Hz - 8.0 kHz
Height
9.88 IN
Length
5.03 IN
Mounting
Wall
Number Of Lines
One
Operating Current
0.24 AMP
Operating Temperature
-31 to 150 DEG F
Operating Voltage
120VAC
Series
AD
Special Features
Balanced Line Output
Standard
UL Listed/cUL Listed/CSA Certified/Marine Listed
Standard
CSA,Marine,UL,cUL
Sub Brand
Atkinson Dynamics
Type
Wall Mount Intercom
Type
Intercoms
Voltage Rating
120 VAC
Width
6.5 IN
Package Dimensions (L x W x H)
8.13 IN x 7.25 IN x 15.13 IN
Package Dimensions (L x W x H)
20.6502 cm x 18.415 cm x 38.4302 cm
Package Weight (Imperial)
10.700 L
Package Weight (Metric)
4.854 kg
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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.