Simplex 4090-9813
Simplex 4090-9813
Out of stock; call for lead time
Simplex 4090-9813 Adapter Plate for Square Electrical Box
A fire alarm accessory mounting plate designed to adapt standard electrical boxes for Simplex notification appliance installation. This component provides a secure interface between fire alarm modules and 4 11/16-inch square electrical boxes.
Key Features:
• 4 11/16-inch Box Compatibility: Fits standard 119mm square electrical boxes with 2-1/8-inch (54 mm) minimum depth
• Easy Installation: Includes two #8 mounting screws for secure fastening
• Standard Fire Alarm Mounting: Widely used in commercial fire detection system installations
• California CSFM Approved: Meets California State Fire Marshal certification requirements
• Durable Construction: Engineered for reliable performance in fire safety applications

