
Federal Signal 300MB-SD CommCenter, no message chips, Series D1, UL and cUL
Alternate Item Number: 300mb-commcenter
UPC: 782979227267
Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- Series D1 architecture for reliable industrial communication
- UL and cUL certified for safety and compliance
- No message chips to reduce failure points and maintenance
- Compact design for easy integration into control panels
- Supports process automation, manufacturing, and utility applications
Specifications
0.8 @ 24VDC/0.2 @ 120VAC/0.1 @ 240VAC | AMP |
11.57 H x 9.41 W x 2.27 D | IN |
24, 120, 240 | VAC/VDC |
24VDC, 120VAC, 240VAC | V |
32 to 140 | DEG F |
Application | Indoor |
Brand Name | Federal Signal |
Color | Black |
Dimensions | 11.57 H x 9.41 W x 2.27 D IN |
Enclosure | Type 1 |
Mounting | Surface |
Operating Current | 0.8 @ 24VDC/0.2 @ 120VAC/0.1 @ 240VAC AMP |
Operating Temperature | 32 to 140 DEG F |
Operating Voltage | 24VDC/120VAC 50-60Hz/240VAC 50-60Hz |
Special Features | Stores Up To Six Voice Messages, Melodies, Tones And Signals |
Standard | UL Listed/cUL Listed |
Standard | UL,cUL |
Sub Brand | CommCenter |
Type | Digital Message Center |
Type | Audible Signals |
Voltage Rating | 24, 120, 240 VAC/VDC |
Package Dimensions (L x W x H) | 2.5 IN x 9.5 IN x 12 IN |
Package Dimensions (L x W x H) | 6.35 cm x 24.13 cm x 30.48 cm |
Package Weight (Imperial) | 6.600 L |
Package Weight (Metric) | 2.994 kg |

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What is the primary function of the 300MB CommCenter?
The 300MB CommCenter broadcasts pre-recorded voice messages, melodies, tones, and signals over SelecTone and public address systems.
How is the 300MB CommCenter activated?
The 300MB CommCenter is remotely activated via contact closures.
Can multiple 300MB units be interconnected?
Yes, units can be interconnected for greater message capacity.
What are the voltage options for the 300MB?
The 300MB has a multi-voltage design, accepting 24VDC, 120VAC, or 240VAC.
How many messages can the 300MB store?
The 300MB can store up to six voice messages, melodies, tones, and signals.
What is the maximum message length and total capacity?
Individual messages can be up to 30 seconds in length, with a total capacity of 180 seconds.
What safety listings does the 300MB have?
The 300MB is UL Listed and cUL Listed.
What is the operating temperature range?
The ambient operating temperature range is 32ºF to 140ºF (0ºC to 60ºC).
What are the audio input specifications?
The audio input impedance is 5K Ohms, and the maximum input voltage is 1V P-P.
What is the signal frequency response?
The signal frequency response ranges from 250Hz to 3.4KHz.
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.

