SCE120LA3SS1B

Alarms, Buzzers, And Sirens Overview

The SCE120LA3SS1B is a piezoelectric buzzer from the SCE series by Mallory Sonalert Products Inc. It operates on an AC input voltage range of 30 to 120V and draws 40mA. The device emits a constant tone at a frequency of 2.9kHz with a sound pressure level of 85dB measured at 48V and 61cm. It features internal drive circuitry and is designed for panel mounting using terminal block connections. The unit has a diameter of 42.85mm and a maximum height of 38.39mm, operating within a temperature range of -40°C to 85°C.

Alarms, Buzzers, And Sirens Feature Summary

• Internally driven piezoelectric design for direct AC connection
• Constant tone operation mode for continuous audio indication
• Panel mount construction with terminal block termination

Alarms, Buzzers, And Sirens Applications

• Industrial equipment status monitoring
• Control panel alarm systems
• General purpose audible indicators in enclosures

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix SS1B confirms the constant tone variant, as other suffixes may indicate different pulse patterns or frequencies. Confirm that the 30-120V AC rating matches the target system voltage. Ensure the panel cutout accommodates the 42.85mm diameter and that terminal block wiring meets local electrical codes. Check for RoHS compliance requirements if applicable to the end product.

Alarms, Buzzers, And Sirens Selection Notes

Select this model when a continuous audible signal is required rather than intermittent pulses. The wide AC voltage range allows compatibility with various industrial power standards without external drivers. Consider the 85dB output level against ambient noise conditions to ensure audibility. Verify that the physical dimensions fit within the available panel space alongside other components.

Alarms, Buzzers, And Sirens Part Context

This component belongs to the SCE series of electronic alarms and buzzers. The series offers various acoustic patterns and voltage ratings. The SCE120LA3SS1B specifically provides a constant tone option within the higher voltage AC segment of the portfolio. It shares mechanical mounting standards with other units in the same family.

Alarms, Buzzers, And Sirens FAQ

What is the difference between SCE120LA3SS1B and SCE120LA3SU1B?

The SCE120LA3SS1B produces a constant tone, whereas the SCE120LA3SU1B typically features a slow speed-up pattern. Both share similar electrical specifications but differ in acoustic output behavior.

Does this buzzer require an external driver circuit?

No, the SCE120LA3SS1B includes internal drive circuitry and connects directly to the specified AC voltage source via terminal blocks.