ZA028SDMT4

Alarms, Buzzers, And Sirens Overview

The ZA028SDMT4 is a piezoelectric buzzer from the Mallory Sonalert ZA series, designed for panel mounting. It operates on DC input within a voltage range of 16 to 28V and draws 40mA. The device emits sound at a frequency of 3.3kHz with a sound pressure level of 75dB measured at 16V and 61cm. It features terminal block connections and includes internal drive circuitry. The unit has a diameter of 30.74mm and supports NEMA 3R, 4X, and 12 ingress protection ratings.

Alarms, Buzzers, And Sirens Feature Summary

• Integrates internal drive circuitry for direct connection to power sources without external drivers.
• Provides high ingress protection compliant with NEMA 3R, 4X, and 12 standards for harsh environments.
• Utilizes piezoelectric technology for reliable acoustic signal generation.
• Features top-mounted ports for directional sound projection.

Alarms, Buzzers, And Sirens Applications

• Industrial machinery status indicators
• Control panel alarm systems
• Equipment fault detection alerts

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix MT4 against official Mallory Sonalert documentation to confirm exact electrical characteristics and termination style. Ensure the procurement specification matches the required DC voltage range and terminal block configuration. Cross-reference the part number with current datasheets to confirm availability and compliance with relevant safety certifications such as UL or cUL before finalizing orders.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a robust, internally driven piezoelectric alarm is required for industrial panels. The ZA series offers standardized dimensions suitable for 22mm cutouts. Consider the 75dB output level relative to ambient noise requirements. Verify that the terminal block interface aligns with existing wiring harness designs and that the operating temperature range meets environmental conditions.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the ZA series of 22mm panel alarms manufactured by Mallory Sonalert Products Inc. The series is recognized for providing versatile audio indication solutions across various sectors. The ZA line typically combines compact form factors with durable construction, supporting both AC and DC variants depending on the specific model suffix.

Alarms, Buzzers, And Sirens Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Mallory Sonalert technical support for cross-references if alternative sourcing is necessary.