ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：BUZZER 30.74MM PNL MNT
- Series：ZT
- Mfr：Mallory Sonalert Products Inc.
- Package：Bulk
- Driver Circuitry：-
- Input Type：DC
- Frequency：3.9kHz
- Technology：-
- Operating Mode：Double Pulse, Slow
- Duration：-
- 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)：1.710" (43.43mm)
- Voltage - Rated：-
- Voltage Range：20 ~ 28V
- Size / Dimension：1.210" Dia (30.74mm)
Download product information
Overview
The ZT028LDDP3R is an industrial-grade audio indicator manufactured by Mallory Sonalert Products Inc. It operates on a DC voltage range of 20 to 28 volts with a rated current consumption of 40 mA. The device produces a sound pressure level between 85 and 95 dBA at a frequency of 3.9 kHz using a fast pulse tone. It features a 22 mm diameter panel mount design with terminal block connections. The unit includes an integrated red LED for visual indication and meets IP66 ingress protection standards.
Feature Summary
- Combines audible alarm with visual LED status indication
- Fast pulse tone generation for distinct alert signaling
- High ingress protection rating for harsh environments
- Direct terminal block connection for simplified wiring
Applications
- Industrial machinery status monitoring
- Control panel fault indication
- Process automation safety alerts
- Heavy equipment operational warnings
Procurement Notes
Verify the specific suffix configuration against the official Mallory Sonalert datasheet to ensure compatibility with required voltage, tone, and LED color specifications. Confirm that the terminal block interface matches existing panel wiring infrastructure. Check for updated RoHS compliance documentation prior to final procurement approval.
Selection Notes
Select this model when both audible and visual alerts are required within a compact 22 mm form factor. Ensure the operating environment supports the specified DC voltage range and that the IP66 rating aligns with exposure conditions. Verify that the fast pulse tone frequency meets regulatory or site-specific auditory warning requirements.
Part Context
This component belongs to the ZT series of industrial audio indicators from Mallory Sonalert. The series is designed for demanding applications requiring reliable performance in noisy or visually complex environments. The ZT series integrates piezoelectric sounders with LED indicators in a standardized panel-mount housing.
Replacement Considerations
Consult the official Mallory Sonalert cross-reference guide for verified substitutes. Ensure replacement units match the 22 mm mounting hole diameter, terminal block pinout, and electrical ratings.
