Buzzer unit PATLITE LR4-BU

The PATLITE LR4-BU is a compact buzzer unit designed for signal and alert applications in industrial and commercial environments. It operates from a 24 V DC supply and provides audible alerts from a housing with a 4 cm diameter. The unit is built to function across a wide ambient temperature range and tolerate relative humidity up to 90%, making it suitable for many indoor locations where space is limited and reliable acoustic signaling is required.

Advantages

The LR4-BU offers a small footprint and straightforward electrical requirements, allowing easy integration with existing control panels and PATLITE signaling modules. Its operating temperature and humidity tolerances contribute to consistent performance in typical factory and facility environments. The buzzer’s focused design reduces installation complexity while providing clear audible indication for alarms, status notifications, or process signals.

Suitable for

• Machine status indication and fault alarms
• Control panels and operator stations with limited space
• Production lines and assembly stations requiring audible alerts
• Maintenance and testing setups for signaling events

Key specifications

• Power supply: 24 V DC
• Diameter: 4 cm
• Operating temperature range: -20 °C to 50 °C
• Relative humidity tolerance: 0% to 90% (non-condensing)
• Compatibility: designed for integration with PATLITE signal devices

How to use

Install the LR4-BU according to standard electrical safety practices, ensuring a secure mechanical mounting and proper connection to a 24 V DC source. Confirm polarity and wiring continuity before energizing. Position the buzzer where the sound will not be obstructed and where ambient conditions fall within the specified temperature and humidity ranges. Integrate the unit into control circuits or signaling systems so that it is activated by the appropriate alarm or status outputs.

Usage recommendations

Regularly verify electrical connections and mounting integrity. Avoid exposure to liquid immersion or environments with persistent condensation. For best performance, test the buzzer periodically as part of routine maintenance procedures and ensure sound levels remain adequate for the intended workspace.