Simplex 2975-9145 Red Fire Alarm Mounting Box

The Simplex 2975-9145 is a commercial fire alarm mounting box designed for compatible Simplex notification appliances. Specifically, it provides a secure mounting solution for approved horn, strobe, speaker, and combination notification devices used in commercial fire alarm systems. This product is intended exclusively for commercial fire alarm installations and is not consumer electrical equipment, communications equipment, surveillance equipment, or recording devices.

Built from durable steel with a red finish, the 2975-9145 supports both flush and surface mounting applications. In addition, it is commonly used in retrofit installations requiring compatible Simplex adapter plates for proper appliance mounting.

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Product Functions

The Simplex 2975-9145 supports commercial fire alarm installations by providing:

• Secure mounting for compatible notification appliances
• Flush or surface mounting options
• Support for approved adapter plates
• Durable enclosure for commercial installations
• Reliable mounting for retrofit applications
• Protection for wiring and electrical connections

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Electrical & System Information

The 2975-9145 is a passive mounting enclosure and does not require operating voltage. Instead, it provides a secure mounting platform for compatible fire alarm notification appliances installed within commercial life-safety systems.

Furthermore, approved adapter plates allow the enclosure to support a variety of wall-mounted notification appliances depending on the application. Always verify compatibility before installation.

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Features

Flush or Surface Mount Installation

The mounting box supports both flush and surface mounting configurations. As a result, it offers installation flexibility for both new construction and retrofit projects.

Heavy-Duty Steel Construction

Constructed from durable steel, the enclosure provides dependable mechanical protection for notification appliance wiring and mounting hardware.

Retrofit Friendly Design

The 2975-9145 is frequently used when upgrading existing fire alarm notification appliances. Consequently, contractors can install newer compatible devices while utilizing approved adapter plates.

Adapter Plate Compatibility

The enclosure works with compatible adapter plates such as the Simplex 4905-9903 and 4905-9931, depending on the notification appliance being installed. Therefore, it supports multiple approved mounting configurations.

Professional Commercial Finish

The red finish provides clear identification as a fire alarm system component while matching commercial notification appliance installations.

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Mounting & Design

The Simplex 2975-9145 features a rugged steel enclosure finished in fire alarm red. Furthermore, its rectangular design supports both vertical and horizontal mounting orientations where approved by the installation requirements.

The enclosure accommodates compatible notification appliances using approved adapter plates, making it an excellent choice for retrofit and replacement projects.

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Protection & Applications

The 2975-9145 is designed exclusively for commercial fire alarm notification systems.

Typical applications include:

• Horn mounting
• Strobe mounting
• Speaker mounting
• Speaker/Strobe mounting
• Retrofit notification appliance installations
• Commercial fire alarm systems

Always install the mounting box according to local building codes, fire codes, and the manufacturer’s installation instructions.

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Compatibility

The Simplex 2975-9145 is designed for use with compatible Simplex notification appliances requiring this mounting enclosure and the specified adapter plate.

Compatible accessories may include:

• Simplex 4905-9903 Adapter Plate
• Simplex 4905-9931 Adapter Plate
• Select TrueAlert notification appliances

Before purchasing or installing this product, verify compatibility with the intended fire alarm device and project requirements.

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Technical Specifications

Manufacturer: Simplex

Model: 2975-9145

Product Type: Commercial Fire Alarm Mounting Box

Color: Red

Material: Steel

Mounting Style: Flush or Surface Mount

Orientation: Vertical or Horizontal

Compatible Devices: Select Simplex Notification Appliances

Compatible Adapter Plates: 4905-9903, 4905-9931 (application dependent)

Height: 7-7/8 in (200 mm)

Width: 5-1/8 in (130 mm)

Depth: 2-3/4 in (70 mm)

Application: Indoor Commercial Fire Alarm Systems

Construction: Heavy-Duty Steel

Installation: Commercial Fire Alarm Notification Appliance Mounting

Always verify technical specifications using the manufacturer’s official documentation before installation.

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Applications

The Simplex 2975-9145 is commonly used in compatible commercial fire alarm systems serving:

• Office Buildings
• Schools
• Universities
• Hospitals
• Healthcare Facilities
• Hotels
• Government Buildings
• Retail Stores
• Warehouses
• Industrial Facilities
• Commercial Buildings

Before installation, verify compliance with local codes, project specifications, and manufacturer recommendations to ensure proper system operation.

2975-9145