SC250DR

Alarms, Buzzers, And Sirens Overview

The SC250DR is an industrial-grade piezoelectric buzzer from the Mallory Sonalert SC series, designed for panel mounting. It operates on AC or DC voltages ranging from 60V to 250V with a current draw of approximately 16mA. The device produces a constant tone at a frequency of 1900Hz. It features screw terminals for connection and is rated for operation between -30°C and 65°C. The unit has a diameter of 43mm and a height of 1.41 inches.

Alarms, Buzzers, And Sirens Feature Summary

• Internal driver circuitry allows direct connection to AC or DC power sources without external components.
• Industrial construction supports operation in harsh environments within specified temperature ranges.
• Certified compliance includes cUL approval for safety standards.

Alarms, Buzzers, And Sirens Applications

• Industrial machinery status indication
• Factory automation control panels
• Heavy equipment warning systems

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix 'DR' against the manufacturer's official part numbering guide to confirm the constant tone variant and terminal type. Ensure input voltage matches the 60-250V range. Confirm RoHS status requirements as documentation may vary by region. Check lead times as these are often made-to-order items.

Alarms, Buzzers, And Sirens Selection Notes

Select this model when a continuous audible alert is required for high-voltage industrial applications. Compare with SC250KR (pulsed) or SC250HR (higher frequency) if different acoustic patterns are needed. Verify panel cutout dimensions match the 43mm diameter specification before integration.

Alarms, Buzzers, And Sirens Part Context

This component belongs to the SC series of industrial alarms, known for robust piezoelectric technology. The SC line provides various tones and mounting options for general industrial signaling. The SC250DR specifically denotes the constant tone variant within this family.

Alarms, Buzzers, And Sirens Replacement Considerations

SC250JR: Different pulse pattern. SC250HR: Higher frequency constant tone. SC250DP: Fast pulse variant. Direct substitution requires verifying identical voltage, current, and acoustic output requirements.