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Product Detailed Parameters
- Description：22MM ALARM+LED;20-28 VAC/DC; 85
- Series：-
- Mfr：Mallory Sonalert Products Inc.
- Package：Retail Package
- Driver Circuitry：Indicator, Internally Driven
- Input Type：AC, DC
- Frequency：3.9kHz
- Technology：-
- Operating Mode：Pulse, Fast
- Duration：10 PPS
- Sound Pressure Level (SPL)：85dB @ 20V, 61cm
- Current - Supply：40mA
- Port Location：Top
- Operating Temperature：-30°C ~ 65°C
- Approval Agency：cUL
- Ratings：-
- Ingress Protection：NEMA 3R, 4X, 12
- Mounting Type：Panel Mount
- Termination：Terminal Block
- Height - Seated (Max)：2.234" (56.75mm)
- Voltage - Rated：-
- Voltage Range：20 ~ 28V
- Size / Dimension：1.210" Dia (30.74mm)
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Overview
The ZT028LAFP1R15 is an internally driven piezoelectric buzzer from the Mallory Sonalert ZT series, designed for industrial applications. It operates at a nominal voltage of 28 VDC with a current draw of 40 mA. The device produces a continuous tone at a frequency of 3.9 kHz and delivers a sound pressure level of 85 dB at 61 cm. It features terminal block connections for secure wiring and supports panel mount installation. The unit measures 30.74 mm in diameter and 43.45 mm in height.
Feature Summary
- Internally driven piezoelectric technology for simplified circuit integration
- Terminal block termination for robust electrical connections
- Panel mount design suitable for industrial enclosures
Applications
- Industrial machinery status indication
- Control panel alarm signaling
- Equipment fault detection systems
Procurement Notes
Verify the specific suffix R15 against official Mallory Sonalert documentation to confirm exact acoustic and electrical tolerances. Ensure the terminal block interface matches the target enclosure wiring scheme. Confirm that the 28 VDC operating voltage aligns with the system power supply specifications before procurement.
Selection Notes
Select this component when an internally driven solution is required to reduce external driver complexity. The terminal block interface offers higher mechanical stability compared to through-hole pins in high-vibration environments. Verify that the 85 dB output level meets the ambient noise requirements of the intended installation site.
Part Context
This part belongs to the ZT series of industrial audio indicators. The series typically includes variants with different voltages, tones, and LED configurations. The ZT028LAFP1R15 specifically denotes a 28 VDC continuous tone model with terminal block mounting.
Replacement Considerations
Cross-reference with ZT028LAFP1 or ZT028LDFP1R if LED integration or pulse tones are acceptable alternatives. Verify physical dimensions and terminal block orientation compatibility before substitution.
