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Product Detailed Parameters
- Description：22MM ALARM +LED;20-28 VDC; LOUD;
- Series：-
- Mfr：Mallory Sonalert Products Inc.
- Package：Retail Package
- Driver Circuitry：Indicator, Internally Driven
- Input Type：DC
- Frequency：3.9kHz
- Technology：-
- Operating Mode：Pulse, Fast
- Duration：0.5 ~ 8 PPS in 30 Sec
- 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 ZT028LDSU2R is an industrial-grade audio indicator manufactured by Mallory Sonalert Products Inc. It operates on a DC voltage range of 20 to 28 Vdc with a current draw of 40 mA. The device produces a sound pressure level of 85 dBA at a frequency of 3.9 kHz. It features a red LED and utilizes terminal block connections for installation.
Feature Summary
- Integrates audible alarm and visual red LED indicator
- Designed for industrial panel mounting applications
- Utilizes terminal block connection method
Applications
- Industrial machinery status indication
- Control panel alarm systems
- Equipment safety monitoring
Procurement Notes
Verify the specific acoustic output and voltage compatibility against your system requirements before procurement. Confirm that the terminal block interface matches your wiring infrastructure. Ensure the unit meets necessary environmental ratings for the intended deployment location. Cross-reference the manufacturer datasheet for precise dimensional constraints.
Selection Notes
Select this component when a combined visual and audible alert is required for industrial environments. The 20-28 Vdc operating range suits standard control circuits. The terminal block interface facilitates secure wiring in vibration-prone settings. Consider the 85 dBA output level relative to ambient noise conditions.
Part Context
This part belongs to the ZT series of industrial audio indicators from Mallory Sonalert. The series is characterized by robust construction suitable for demanding environments. It provides reliable signaling through integrated piezoelectric and LED technologies within a compact form factor designed for panel integration.
Replacement Considerations
Consult official Mallory Sonalert documentation for verified substitute part numbers. Do not assume functional equivalence with generic industrial buzzers without verifying electrical parameters and mounting dimensions.
