Bell Master 94dB 24V DC 150mm Grey

The Friedland 66-24SP Grey Master Bell is a robust and reliable industrial alarm bell, ideal for security and fire alarm systems in commercial and industrial environments. Operating at 24V DC with a sound output of 91–94dB, this master bell ensures loud and clear audible alerts for effective alarm signalling. Designed with a durable metal housing and a diameter of 154mm, the unit includes a wall bracket for easy surface mounting.

With an IP42 protection rating (upgradable to IP44 when used with a conduit box), this bell is suitable for both indoor and protected outdoor installations. Its wide sound frequency range (300Hz to 12kHz) makes it ideal for environments requiring immediate attention in emergency scenarios.

Technical Specifications

• Download Product Technical Data Sheet

• Model: Friedland 66-24SP

• Colour: Grey

• Bell Diameter: 150mm (154mm shell diameter)

• Sound Level: 91 to 94dB

• Frequency Range: 300Hz to 12kHz

• Power Rating: 4W

• Voltage Rating: 24V DC

• Current Consumption: 0.05A

• Material: Metal housing

• Height: 91mm

• Width: 154mm

• Depth: 180mm

• Mounting Method: Surface mount (wall bracket included)

• IP Rating: IP42 (IP44 with conduit box)

• Nominal Voltage: 24V

• Built-in Transformer: No

• Housing Colour: Grey

• Degree of Protection (IP): IP42 (upgradable to IP44)