ZA028SDMT7

Alarms, Buzzers, And Sirens Overview

The ZA028SDMT7 is a piezoelectric buzzer from the Mallory Sonalert ZA series, designed for panel mounting. It operates on a DC input voltage range of 16 to 28V with a current draw of 40mA. The device produces a sound pressure level of 65dB at 16V measured at 61cm. Its operating frequency is specified between 2.8kHz and 3.4kHz. The unit features terminal block connections and is rated for an operating temperature range of -30°C to 65°C.

Alarms, Buzzers, And Sirens Feature Summary

• Integrates internal drive circuitry for direct connection to power sources without external oscillators.
• Constructed with piezoelectric technology to generate audible alerts efficiently.
• Designed for secure panel mounting using terminal block termination methods.

Alarms, Buzzers, And Sirens Applications

• Industrial control panels requiring visual and audible status indicators
• Equipment alarm systems needing reliable DC-powered audio warnings
• Enclosures requiring NEMA-rated environmental protection

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix MT7 against official Mallory Sonalert documentation to confirm exact acoustic output and frequency tolerances. Ensure the application environment remains within the specified -30°C to 65°C operating temperature range. Confirm that the 16-28V DC supply matches the device requirements before installation.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a low-profile, internally driven piezoelectric indicator is required for DC applications. The ZA series offers consistent performance across varying temperatures. Compare SPL ratings if higher volume is needed, or consider alternative frequencies if distinct alert tones are necessary for different system statuses.

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 known for providing robust audio indication solutions for industrial environments. The ZA028 base model typically supports various acoustic outputs and mounting configurations, with the SDMT7 suffix denoting specific electrical and mechanical characteristics.

Alarms, Buzzers, And Sirens Replacement Considerations

Direct substitutes may include other ZA series variants with matching voltage and mounting dimensions. Verify compatibility with existing panel cutouts and terminal block wiring schemes. Consult manufacturer cross-reference guides for equivalent parts with similar SPL and frequency specifications.