ZT028LADP3R

Overview

The ZT028LADP3R is an industrial-grade piezoelectric alarm and indicator manufactured by Mallory Sonalert Products Inc. It operates within a voltage range of 20 to 28 VDC and draws 40 mA. The device produces a continuous sound pressure level of 95 dBA at a frequency of 3.9 kHz. It features a slow double pulse mode with a rate of 0.5 pulses per second, combining audible alarms with visual LED indication. The unit is designed for panel mounting using terminal block connections and meets IP66 ingress protection standards.

Feature Summary

• Integrates simultaneous audible alarm and visual LED indication for dual-sensory alerting
• Operates on standard industrial DC voltage supplies without external drivers
• Provides high-intensity acoustic output suitable for noisy environments
• Constructed with durable materials rated for harsh industrial conditions

Applications

• Industrial machinery status monitoring and fault signaling
• Control panel integration for process safety alarms
• Heavy equipment operator warning systems
• Automated manufacturing line status indicators

Procurement Notes

Verify the specific suffix codes against official Mallory Sonalert documentation to ensure correct configuration. Confirm that the required voltage rating matches the system supply. Check for any specific environmental certifications needed for the installation site. Ensure terminal block compatibility with existing wiring harnesses. Validate that the physical dimensions fit the designated panel cutout space.

Selection Notes

Select this model when both audio and visual alerts are required in a single component. Consider the 95 dBA output for environments requiring loud warnings. Evaluate the IP66 rating if exposure to dust or water jets is possible. Compare current consumption against available power supplies. Assess the need for the specific slow double pulse pattern versus continuous tones.

Part Context

This component belongs to the ZT series of industrial alarms and indicators from Mallory Sonalert. The series is characterized by robust construction and high sound pressure levels. These devices are engineered for reliability in demanding operational settings. The ZT series typically utilizes piezoelectric technology for consistent performance across temperature variations.

Replacement Considerations

Consult official Mallory Sonalert cross-reference guides for verified substitutes. Ensure replacement units match the voltage, current, and mounting specifications. Verify that alternative models provide equivalent acoustic and visual output levels.