The Potter PDC-624 is a 24 VDC motor driven alarm bell designed to provide dependable audible fire alarm notification in commercial and industrial fire alarm systems. Its 6 inch vibrating steel gong delivers a high output audible signal for emergency notification while operating with low current consumption.
The bell features a polarized DC design with built in transient protection for supervised notification appliance circuits. Its rugged construction allows installation indoors or outdoors when used with an approved weatherproof back box, making it suitable for a wide variety of life safety applications.
Product Functions
- Provides audible fire alarm notification
- Produces a high output mechanical bell signal
- Operates from 24 VDC notification appliance circuits
- Supports supervised notification appliance circuits
- Provides polarized operation
- Supports indoor installation
- Supports outdoor installation with approved weatherproof back box
- Provides dependable emergency signaling
Electrical & System Information
The PDC-624 operates from regulated 24 VDC notification appliance circuits and utilizes a motor driven vibrating bell mechanism. The bell is polarized and incorporates built in transient protection for use on supervised fire alarm notification circuits.
The unit mounts directly to a standard four inch square electrical box for indoor applications or to a BBK-1 or HC-BB weatherproof back box for outdoor installations.
Features
- Alarm bell
- Motor driven operation
- 24 VDC operation
- Six inch steel gong
- Polarized design
- Built in transient protection
- High sound output
- Low current draw
- Indoor installation
- Outdoor installation with weatherproof back box
- Red powder coated finish
- Commercial fire alarm application
Mounting & Design
The PDC-624 mounts directly to a standard four inch square electrical box for indoor installations. For outdoor or wet location applications, it is installed on a Potter BBK-1 or HC-BB weatherproof back box to maintain environmental protection.
Its semi flush design and corrosion resistant construction provide dependable long term performance in commercial and industrial environments.
Protection & Applications
Suitable for:
- Commercial Fire Alarm Systems
- Industrial Facilities
- Warehouses
- Manufacturing Plants
- Office Buildings
- Schools and Universities
- Hospitals
- Government Buildings
- Utility Facilities
- Mechanical Rooms
- Indoor Notification Systems
- Outdoor Notification Systems
Technical Specifications
Manufacturer: Potter
Model: PDC-624
Product Type: Alarm Bell
Operating Voltage: 24 VDC
Operation: Motor Driven
Bell Size: 6 Inches
Current Draw: 20 Milliamps Maximum
Typical Sound Output: 95 dBA at 10 Feet
Minimum Sound Output: 77 dBA at 10 Feet
Housing Finish: Red Powder Coat
Mounting: Standard Four Inch Square Electrical Box
Outdoor Installation: BBK-1 or HC-BB Weatherproof Back Box Required
Operating Temperature: Minus 40 Degrees Fahrenheit to 150 Degrees Fahrenheit
Application: Indoor and Outdoor Commercial Fire Alarm Systems
Listings: UL Listed, ULC Listed, and CSFM Listed. Verify product labeling, installation instructions, local codes, and project requirements before installation.
Applications
The Potter PDC-624 is designed for commercial fire alarm systems requiring dependable audible notification. Typical applications include office buildings, hospitals, schools, warehouses, manufacturing facilities, industrial plants, government buildings, utility facilities, and other commercial occupancies requiring indoor or outdoor mechanical fire alarm signaling.



