SCE028LD3SP1B

Alarms, Buzzers, And Sirens Overview

The SCE028LD3SP1B is a piezoelectric buzzer from the SCE series, designed for panel mounting with terminal block connections. It operates on DC input within a voltage range of 16 to 28V and draws 40mA. The device features an internal driver circuit and produces a continuous tone at a frequency of 2.9kHz. It delivers a sound pressure level of 85dB at 16V measured at 61cm. The unit has a diameter of 42.98mm and a maximum installation height of 38.39mm. It is certified by UL and cUL and functions reliably between -40°C and 85°C.

Alarms, Buzzers, And Sirens Feature Summary

• Integrates an internal driver circuit for direct connection to power sources without external oscillators.
• Provides a continuous single-tone acoustic signal for persistent status indication or alarm purposes.
• Constructed with a robust housing suitable for industrial environments and harsh operating conditions.

Alarms, Buzzers, And Sirens Applications

• Industrial control panels requiring audible fault or status alerts
• Electrical enclosures needing compliant warning indicators
• Automation machinery signaling operational states

Alarms, Buzzers, And Sirens Procurement Notes

Verify that the specific suffix SP1B corresponds to the continuous tone variant in official Mallory Sonalert documentation. Confirm terminal block orientation and panel cutout dimensions match the design constraints. Ensure the application voltage remains within the specified 16-28V DC range to maintain performance and longevity. Check for required environmental certifications such as UL or cUL for the target region.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a constant audible alert is required rather than pulsed or intermittent signals. The internal driver simplifies circuit design by eliminating the need for external timing components. Consider the 85dB output level against ambient noise requirements. Verify that the panel mount style and terminal block termination suit the assembly process.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the SCE series of industrial-grade audio indicators manufactured by Mallory Sonalert Products Inc. The series is characterized by high reliability and compliance with international safety standards. These devices are engineered for long-term operation in demanding electrical and mechanical environments.

Alarms, Buzzers, And Sirens Replacement Considerations

Consult official Mallory Sonalert substitution guides for verified equivalents. Cross-reference specifications such as voltage, current, frequency, and mounting dimensions before substituting.