MB-09-531-W(U)

Alarms, Buzzers, And Sirens Overview

The MB-09-531-W(U) is a panel mount chime alarm manufactured by Floyd Bell Inc, belonging to the Audiolarm II series. It utilizes piezo technology for sound generation and features an internally driven indicator circuit. The device operates on a DC voltage range of 5 to 25 volts with a power consumption current between 5 and 25 mA. It produces a sound pressure level of 70 dB at 5V measured at 61 cm and functions at a frequency of 2.9 kHz. The unit is designed for top port mounting and includes wire leads for connection. It supports an operating temperature range from -20°C to 65°C and holds UL and UR approval agencies certifications.

Alarms, Buzzers, And Sirens Feature Summary

• Piezo-based internal driver circuitry for reliable chime signaling
• Wide DC voltage operational capability from 5V to 25V
• IP68 rated enclosure providing dust tight and waterproof protection
• Panel mount installation with top port wire lead termination

Alarms, Buzzers, And Sirens Applications

• Industrial equipment status indication
• Control panel alarm signaling
• Appliance chime notification systems
• Automotive or marine instrument panels requiring water resistance

Alarms, Buzzers, And Sirens Procurement Notes

Verify that the specific suffix (U) matches the required pinout or lead configuration for your assembly. Confirm that the 70dB SPL meets acoustic requirements for the intended environment. Ensure the operating voltage falls within the 5-25V DC range to prevent damage. Check that the IP68 rating aligns with the environmental exposure conditions of the final product installation.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a robust, waterproof chime is required for panel mounting. The wide voltage range allows flexibility in system design without needing additional regulation. The high IP rating makes it suitable for harsh environments where standard indicators would fail. Consider the 2.9kHz frequency for audibility against background noise.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the Audiolarm II series, which focuses on durable piezo chimes for industrial applications. It shares the form factor and mounting style with other models in the 09-series lineup but differs in electrical characteristics and acoustic output levels compared to lower or higher intensity variants.

Alarms, Buzzers, And Sirens Replacement Considerations

Direct substitutes may include other Floyd Bell Audiolarm II models with similar voltage and SPL ratings. Verify mechanical dimensions and lead configuration before swapping. Cross-reference with generic piezo chimes only if electrical parameters and IP ratings are strictly matched.