Federal Signal R4NB-1 - Speaker Backbox, 4 Inch, With 1 Inch Knockout
Federal Signal

R4NB-1

Alternate Item Number: radiant-sound-module

UPC: 782979235750

Contact for Pricing

Overview

The Federal Signal R4NB-1 is a 4-inch speaker backbox kit designed as a direct accessory for the Federal Signal 50GCB speaker series. This backbox significantly reduces assembly time through its innovative snap-on design, enabling rapid, tool-free mounting. It features a 1-inch knockout for streamlined wiring, simplifying installation in industrial settings. The R4NB-1 is engineered for compatibility with most tee-bar mounting configurations that accommodate 4-inch speakers, ensuring secure and reliable installation. Manufactured in the US, this backbox kit provides consistent, secure mounting to protect speaker integrity. Its quick snap-on installation minimizes labor hours and allows for straightforward maintenance. Ideal for industrial, commercial, and public-address applications where efficiency and performance are paramount, the R4NB-1 offers a cost-effective, time-saving solution that meets stringent industrial standards. SKU: R4NB-1. UNSPSC: 46171602.
  • 4-inch speaker backbox kit for Federal Signal 50GCB series
  • Rapid, tool-free snap-on installation reduces assembly time
  • Features a 1-inch knockout for streamlined wiring
  • Compatible with most tee-bar mounting configurations for 4-inch speakers
  • Ensures consistent, secure mounting and protects speaker integrity
  • Enhances sound projection and speaker longevity
  • Backed by Federal Signal’s reputation for industrial audio excellence

Specifications

Connection Type
1 Inch Knockout
Series
R4NB
Size
4 Inch
Package Dimensions (L x W x H)
26 IN x 9 IN x 4.88 IN
Package Dimensions (L x W x H)
66.04 cm x 22.86 cm x 12.3952 cm
Package Weight (Imperial)
2.500 L
Package Weight (Metric)
1.134 kg
SelecTone Universal Tone Module, UL and cUL

UTM

SelecTone Universal Tone Module, UL and cUL
Heavy Duty 6" Diameter Steel Bell with cast aluminum housing in 24V for Indoor or Outdoor use. Painted with Dawn Mist color and rated for #12-22 AWG. High sound output and ideal for schools or hospitals.

TA340-6G5

Heavy Duty 6" Diameter Steel Bell with cast aluminum housing in 24V for Indoor or Outdoor use. Painted with Dawn Mist color and rated for #12-22 AWG. High sound output and ideal for schools or hospitals.
DS 10 24V DC G L

23111800001

DS 10 24V DC G L

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.