SC628DR

Overview

The SC628DR is a piezoelectric industrial buzzer manufactured by Mallory Sonalert. It operates on a continuous tone at a frequency of 1900 Hz with a sound pressure level of 98 dBA. The device is rated for 6-28 VDC input, drawing 20 mA of current. It features screw terminal connections and is designed for panel mounting with a diameter of 43 mm.

Feature Summary

• Piezoelectric technology for reliable audio signaling
• Industrial-grade construction for harsh environments
• Continuous tone output for persistent alerts

Applications

• Industrial machinery fault indication
• Process control system alarms
• Safety equipment status monitoring

Procurement Notes

Verify the specific suffix DR against official Mallory Sonalert documentation to confirm terminal type and acoustic specifications. Ensure the operating voltage range matches the system power supply. Confirm panel cutout dimensions align with the 43 mm diameter requirement before procurement.

Selection Notes

Select this model when a loud, continuous audible alert is required for industrial applications. The screw terminal option facilitates secure wiring in vibration-prone environments. Compare sound pressure levels and current draw against other SC series variants to ensure compatibility with existing control circuits.

Part Context

The SC628DR belongs to the SC series of panel-mount buzzers from Mallory Sonalert. This series has been a foundational product line since the company began producing electronic sound alarms in the 1960s. The SC series is widely recognized as a standard for industrial audio indicators.

Replacement Considerations

Consult official Mallory Sonalert substitution guides for verified equivalents. Generic replacements may not match the specific 98 dBA output or 1900 Hz frequency requirements.