ZT028LDIC3G

Overview

The ZT028LDIC3G is an industrial-grade piezoelectric buzzer and indicator manufactured by Mallory Sonalert Products Inc. It features a built-in driver circuit for direct connection to DC power sources within the 20V to 28V range. The device operates at a frequency of 3.9 kHz with a continuous tone mode, drawing 40 mA of current. It produces a sound pressure level of 95 dBA and includes an integrated blue LED. Designed for panel mounting via terminal blocks, it meets IP66 standards for environmental protection.

Feature Summary

• Integrated internal driver circuit allows direct connection to DC voltage without external components
• Combines audible alarm with visual indication through a built-in blue LED
• Industrial construction provides IP66 ingress protection against dust and water jets
• Panel mount design utilizes terminal block connections for secure wiring

Applications

• Industrial control panels requiring combined audio-visual status alerts
• Machine tool interfaces for fault or operation signaling
• Enclosed electrical cabinets needing high ingress protection
• Automation systems demanding reliable DC-powered indicators

Procurement Notes

Verify the specific suffix code to confirm the LED color and tone type, as variations exist within the series. Confirm that the operating voltage matches the 20-28V DC requirement. Ensure the installation environment meets the IP66 rating needs. Check for UL and cUL certification requirements if applicable to your region. Validate terminal block compatibility with existing wiring harnesses.

Selection Notes

Select this model when both sound and light signals are required in a single component. Choose the ZT series for industrial durability compared to standard commercial buzzers. Consider the 3.9 kHz frequency for optimal audibility in noisy environments. Verify that the panel cutout dimensions accommodate the 30.7 mm diameter. Ensure the terminal block orientation fits the enclosure layout.

Part Context

This component belongs to the ZT series of industrial audio indicators from Mallory Sonalert. The series is designed for harsh environments where reliability and durability are critical. Unlike the SCE series which may use different mounting styles, the ZT series emphasizes robust panel mounting and high ingress protection ratings suitable for heavy-duty applications.

Replacement Considerations

Direct replacements include ZT028LDIC2G for green LED variants or ZT028LAIC1G for continuous tone configurations. Verify that substitute models maintain the same 20-28V DC input range and 95 dBA output level. Ensure the replacement also supports terminal block termination and IP66 sealing capabilities.