Federal Signal EM3 - SelecTone Extension Module
Federal Signal

EM3

Alternate Item Number: em3-selectone-extension-module

UPC: 782979370000


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Overview

The Federal Signal EM3 SelecTone Extension Module (SKU: EM3) is a modular add-on for SelecTone systems (Models 50GC, 300, 300GC, 302GC). It enables a single SelecTone unit to produce up to three simultaneous tones using user-supplied dry contacts. Housed in a die-cast aluminum alloy enclosure (5.63" H x 4.94" W x 3.38" D), the EM3 is sealed for dust and moisture resistance (Type 3R) and operates from -31°F to 151°F (-35°C to 66°C). No separate power supply is required. The module accepts up to three Universal Tone Modules (UTM) for tone selection (32 switchable tones per UTM). UL and cUL Listed for indoor/outdoor use.
  • Adds multi-tone capability to SelecTone units (Models 50GC, 300, 300GC, 302GC)
  • Supports up to three simultaneous tones via user-supplied dry contacts
  • Die-cast aluminum alloy enclosure (5.63" H x 4.94" W x 3.38" D), Type 3R rated
  • Operates from -31°F to 151°F (-35°C to 66°C) without a separate power supply
  • Accepts up to three Universal Tone Modules (UTM) for 32 switchable tones each

Specifications

-31 to 151
DEG F
Application
Indoor/Outdoor
Brand Name
Federal Signal
Color
Gray
Dimensions
5.63 H x 4.94 W x 3.38 D
Enclosure
Type 3R
Ip Rating
Type 3R
Material
Die-Cast Aluminum Alloy Housing
Material
Die-Cast Aluminum Alloy
Mounting
Surface
NEMA Rating
Type 3R
Operating Temperature
-31 to 151 DEG F
Series
SelecTone
Size
5.63" H x 4.94" W x 3.38" D
Special Features
Adds Multi-Tone Capability To Individual SelecTone Unit
Standard
UL,cUL
Standard
UL Listed/cUL Listed
Sub Brand
SelecTone
Type
Audible Signals
Type
Extension Module
Package Dimensions (L x W x H)
9.25 IN x 6 IN x 7.5 IN
Package Dimensions (L x W x H)
23.495 cm x 15.24 cm x 19.05 cm
Package Weight (Imperial)
2.200 L
Package Weight (Metric)
0.998 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.