🧩 Product Overview

The MPF-4B Fire Alarm Bell is a compact, motor-driven alarm bell designed for reliable audible signaling in fire alarm systems.
With low power consumption and durable construction, it provides consistent and powerful sound output for various building safety applications.

Key Features & Advantages

💡 Motor-Driven Design
Operates with low current consumption, minimizing power load on the control panel.
🛠️ Sturdy and Durable Construction
Made from 1.8 mm steel sheet, ensuring long service life and stable performance.
🔊 Continuous Reliable Operation
Capable of ringing for up to 40 hours without decline in sound or structure performance.
📢 Clear and Loud Sound Output
Produces a 95 dB/M sound level, ensuring effective alarm notification.

Specifications

Item	MPF-4B	MPF-4B-12V
Voltage Range	24V DC	12V DC (55mA)
Alarm Current	38mA	38mA
Movement	Motor	Motor
Material	1.8 mm Steel Sheet	1.8 mm Steel Sheet
Dimensions	4″ (Ø102 mm)	4″ (Ø102 mm)
Weight	340 g	340 g
Sound Output	95 dB/M	95 dB/M
Color	Red	Red