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The Simplex 4905-9903 is a commercial fire alarm adapter plate designed for compatible Simplex notification appliances. Specifically, it provides a secure retrofit mounting solution for approved horn, strobe, and audible/visual devices installed on the Simplex 2975-9145 mounting box. This product is intended exclusively for commercial fire alarm installations and is not consumer electrical equipment, communications equipment, surveillance equipment, or recording devices.
Manufactured from durable steel with a red finish, the 4905-9903 simplifies retrofit projects by allowing newer compatible notification appliances to mount securely on existing back boxes. In addition, its low-profile design helps maintain a clean and professional appearance after installation.
The Simplex 4905-9903 supports commercial fire alarm installations by providing:
The 4905-9903 is a passive mounting accessory and does not require operating voltage. Instead, it provides a mechanical mounting interface between compatible notification appliances and the Simplex 2975-9145 back box.
Furthermore, the adapter plate supports retrofit installations where replacing the existing mounting box is unnecessary. Always verify compatibility before installation.
The adapter plate allows compatible notification appliances to mount onto existing Simplex 2975-9145 back boxes. As a result, retrofit projects become faster and more cost-effective.
Constructed from durable steel, the plate provides dependable mechanical support for commercial fire alarm notification appliances.
The slim profile maintains a clean finished appearance while minimizing additional projection from the wall.
The red finish matches commercial fire alarm equipment and provides consistent appearance throughout the installation.
Designed specifically for compatible Simplex equipment, the adapter plate helps ensure secure appliance installation during new construction and retrofit applications.
The Simplex 4905-9903 features a rugged steel construction with precision mounting holes for approved notification appliances. Furthermore, it installs directly onto the Simplex 2975-9145 mounting box, allowing straightforward installation without modifying the existing enclosure.
Its compact design makes it well suited for commercial retrofit applications where maintaining existing infrastructure reduces installation time and labor costs.
The 4905-9903 is designed exclusively for commercial fire alarm notification systems.
Typical applications include:
Always install the adapter plate according to local building codes, fire codes, and the manufacturer’s installation instructions.
The Simplex 4905-9903 is designed for use with the Simplex 2975-9145 mounting box and compatible Simplex notification appliances requiring this retrofit adapter.
Before purchasing or installing this product, verify compatibility with the intended notification appliance and project requirements.
Manufacturer: Simplex
Model: 4905-9903
Product Type: Commercial Fire Alarm Adapter Plate
Color: Red
Material: Steel
Application: Retrofit Mounting Plate
Compatible Mounting Box: Simplex 2975-9145
Compatible Devices: Select Simplex Horns, Strobes, and Audible/Visual Notification Appliances
Installation: Indoor Commercial Fire Alarm Systems
Mounting Orientation: Vertical or Horizontal (application dependent)
Dimensions: 8.31 × 5.75 × 0.06 in (211 × 146 × 1.5 mm)
Construction: Heavy-Duty Steel
Always verify technical specifications using the manufacturer’s official documentation before installation.
The Simplex 4905-9903 is commonly used in compatible commercial fire alarm systems serving:
Before installation, verify compliance with local codes, project specifications, and manufacturer recommendations to ensure proper system operation.
| Weight | 2 lbs |
|---|---|
| Dimensions | 6 × 8 × 6 in |
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The Simplex 4905-9903 is a commercial fire alarm adapter plate designed for compatible Simplex notification appliances. Specifically, it provides a secure retrofit mounting solution for approved horn, strobe, and audible/visual devices installed on the Simplex 2975-9145 mounting box. This product is intended exclusively for commercial fire alarm installations and is not consumer electrical equipment, communications equipment, surveillance equipment, or recording devices.
Manufactured from durable steel with a red finish, the 4905-9903 simplifies retrofit projects by allowing newer compatible notification appliances to mount securely on existing back boxes. In addition, its low-profile design helps maintain a clean and professional appearance after installation.
The Simplex 4905-9903 supports commercial fire alarm installations by providing:
The 4905-9903 is a passive mounting accessory and does not require operating voltage. Instead, it provides a mechanical mounting interface between compatible notification appliances and the Simplex 2975-9145 back box.
Furthermore, the adapter plate supports retrofit installations where replacing the existing mounting box is unnecessary. Always verify compatibility before installation.
The adapter plate allows compatible notification appliances to mount onto existing Simplex 2975-9145 back boxes. As a result, retrofit projects become faster and more cost-effective.
Constructed from durable steel, the plate provides dependable mechanical support for commercial fire alarm notification appliances.
The slim profile maintains a clean finished appearance while minimizing additional projection from the wall.
The red finish matches commercial fire alarm equipment and provides consistent appearance throughout the installation.
Designed specifically for compatible Simplex equipment, the adapter plate helps ensure secure appliance installation during new construction and retrofit applications.
The Simplex 4905-9903 features a rugged steel construction with precision mounting holes for approved notification appliances. Furthermore, it installs directly onto the Simplex 2975-9145 mounting box, allowing straightforward installation without modifying the existing enclosure.
Its compact design makes it well suited for commercial retrofit applications where maintaining existing infrastructure reduces installation time and labor costs.
The 4905-9903 is designed exclusively for commercial fire alarm notification systems.
Typical applications include:
Always install the adapter plate according to local building codes, fire codes, and the manufacturer’s installation instructions.
The Simplex 4905-9903 is designed for use with the Simplex 2975-9145 mounting box and compatible Simplex notification appliances requiring this retrofit adapter.
Before purchasing or installing this product, verify compatibility with the intended notification appliance and project requirements.
Manufacturer: Simplex
Model: 4905-9903
Product Type: Commercial Fire Alarm Adapter Plate
Color: Red
Material: Steel
Application: Retrofit Mounting Plate
Compatible Mounting Box: Simplex 2975-9145
Compatible Devices: Select Simplex Horns, Strobes, and Audible/Visual Notification Appliances
Installation: Indoor Commercial Fire Alarm Systems
Mounting Orientation: Vertical or Horizontal (application dependent)
Dimensions: 8.31 × 5.75 × 0.06 in (211 × 146 × 1.5 mm)
Construction: Heavy-Duty Steel
Always verify technical specifications using the manufacturer’s official documentation before installation.
The Simplex 4905-9903 is commonly used in compatible commercial fire alarm systems serving:
Before installation, verify compliance with local codes, project specifications, and manufacturer recommendations to ensure proper system operation.
| Weight | 2 lbs |
|---|---|
| Dimensions | 6 × 8 × 6 in |
Your Payment information is processed securely. We do not store credit card details, nor have access to your credit card information.
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