MB-09-201-W(U)

Alarms, Buzzers, And Sirens Overview

The MB-09-201-W(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 delivers 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 is certified by UL and UR agencies and meets IP68 standards for dust tightness and waterproofing. The operating temperature range spans from -20°C to 65°C.

Alarms, Buzzers, And Sirens Feature Summary

• Internally driven piezo technology for direct DC operation
• IP68 rated enclosure providing dust tight and waterproof protection
• UL and UR agency certifications for safety compliance
• Panel mount design with top-mounted ports and wire leads

Alarms, Buzzers, And Sirens Applications

• Industrial equipment status signaling
• Marine or outdoor control panels requiring waterproof alarms
• HVAC system fault indication
• Medical device audible alerts

Alarms, Buzzers, And Sirens Procurement Notes

Verify that the specific suffix (U) matches the required lead-free or halogen-free material specifications if mandated by your project's environmental regulations. Confirm that the 5-25V DC input aligns with your system's power supply capabilities, as performance metrics such as SPL are voltage-dependent. Ensure the panel cutout dimensions accommodate the 35.81mm diameter and verify that the wire lead termination method suits your assembly process.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a robust, waterproof audible indicator is required for harsh environments. The wide voltage tolerance allows flexibility in power distribution designs. Consider the 70 dB SPL output relative to ambient noise levels; higher decibel requirements may necessitate alternative models within the Audiolarm II series. Verify that the internal driver circuit simplifies your PCB layout by eliminating external drive components.

Alarms, Buzzers, And Sirens Part Context

This part is part of the Audiolarm II family, which focuses on reliable piezoelectric signaling solutions. Floyd Bell manufactures these units to meet stringent industrial standards. The MB-09 series typically denotes a specific form factor and mounting style within their broader catalog of chimes and alarms. This model represents a standard configuration optimized for general-purpose panel mounting applications.

Alarms, Buzzers, And Sirens Replacement Considerations

Cross-reference with other MB-09 series variants for different voltage ratings or SPL outputs. Verify mechanical compatibility with existing panel cutouts before substituting. Check for equivalent IP68 rated alternatives from other manufacturers if supply chain constraints exist.