MB-09-301-S(U)

Alarms, Buzzers, And Sirens Overview

The MB-09-301-S(U) is a panel mount chime alarm manufactured by Floyd Bell Inc. It belongs to the Audiolarm II series and features an internally driven piezo driver circuit. The device operates on a DC voltage range of 5 to 25 volts with a rated frequency of 2.9 kHz. It produces a sound pressure level of 70 dB at 5V measured at a distance of 61 cm. Power consumption ranges from 5 to 25 mA depending on the input voltage. The unit is designed for top port mounting and includes wire leads for connection. It has an IP68 rating, providing dust tight and waterproof protection. The physical dimensions are 1.410 inches in diameter and 1.480 inches in maximum height. Operating temperatures range from -20°C to 65°C. The component holds UL and UR approval agency certifications.

Alarms, Buzzers, And Sirens Feature Summary

• Internally driven piezo driver circuit for direct DC operation
• IP68 rated enclosure providing dust tight and waterproof protection
• Panel mount design with top port location and wire leads
• UL and UR approved for safety compliance

Alarms, Buzzers, And Sirens Applications

• Industrial equipment status indication
• Appliance audio signaling
• Control panel alarm systems
• Automotive or marine interior alerts

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix (U) against official Floyd Bell documentation to confirm any variations in lead time or packaging compared to standard variants. Ensure the operating voltage matches the 5-25V DC requirement. Confirm that the IP68 rating meets environmental exposure needs. Check for current active status as part numbers may be discontinued or superseded.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a rugged, waterproof audible indicator is required for panel mounting. The wide voltage range allows flexibility in power supply design. The high SPL ensures audibility in moderate noise environments. Verify space constraints against the 1.410-inch diameter and 1.480-inch height dimensions.

Alarms, Buzzers, And Sirens Part Context

This part is part of the Audiolarm II series from Floyd Bell Inc., which specializes in audible signaling devices. The series typically includes various chime and alarm configurations with different mounting styles and acoustic outputs. The MB-09-301-S(U) represents a specific variant within this lineup focused on durability and broad voltage compatibility.

Alarms, Buzzers, And Sirens Replacement Considerations

Consult official Floyd Bell cross-reference lists for direct replacements. Generic piezo alarms may not match the IP68 rating or internal driver specifications. Verify mechanical fit and electrical characteristics before substituting.