PS-551Q

Overview

The PS-551Q is an industrial-grade piezoelectric alarm manufactured by Mallory Sonalert. It operates within a voltage range of 5 to 15 VDC with a rated voltage of 12 VDC and a current draw of 200 mA. The device produces a slow pulse tone at a frequency of 2.8 kHz, achieving a sound pressure level of 105 dB. It features wire lead termination and bracket mount installation. Physical dimensions are 62 mm x 41 mm (or 54 mm diameter x 41 mm height).

Feature Summary

• Generates a distinct slow pulse acoustic signal for clear auditory alerts.
• Utilizes piezoelectric technology for reliable industrial performance.
• Designed for bracket mounting with wire lead connections.

Applications

• Industrial equipment fault signaling
• General purpose audio alarms
• Panel mounted warning systems

Procurement Notes

Verify the specific application requirements against the official datasheet before ordering. Confirm that the operating voltage falls within the 5-15 VDC range and that the 200 mA current rating is supported by the power supply. Ensure the bracket mount style and wire lead termination are compatible with the intended assembly design.

Selection Notes

Select this component when a high-decibel, slow-pulse indicator is required for industrial environments. The 12 VDC nominal rating suits standard low-voltage control circuits. Consider the physical size constraints and the need for bracket mounting versus panel cutout options when comparing alternative series.

Part Context

This part belongs to the PS series of industrial audio indicators from Mallory Sonalert. The series is characterized by robust construction suitable for demanding environments. The PS-551Q specifically offers a slow pulse variation, distinguishing it from continuous or warble tone models within the same product family.

Replacement Considerations

Consult the manufacturer's cross-reference documentation for verified substitutes. Alternative models may differ in tone type, voltage range, or mounting configuration. Do not assume interchangeability based on similar form factors without verifying electrical and mechanical specifications.