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Product Specifications
  • AttributesAttribute Value
  • ManufacturerMallory Sonalert Products
  • CategoryAudio Products
  • PackagesBulk
  • Standard Quantity10
  • DescriptionBuzzers Indicator, Internally Driven Piezo 40mA 3.7kHz 85dB @ 20V, 61cm Panel Mount Terminal Block
  • Size / Dimension1.210" Dia (30.74mm)
  • Mounting TypePanel Mount
  • Frequency3.7kHz
  • Operating Temperature-30°C ~ 65°C
  • Sound Pressure Level (SPL)85dB @ 20V, 61cm
  • Duration30 Sec On-Time
  • Current - Supply40mA
  • Input TypeDC
  • Operating ModeSingle Tone, Visual Indicator
  • Voltage Range20 ~ 28V
  • TechnologyPiezo
  • TerminationTerminal Block
  • Approval AgencycUL, UL
  • Ingress ProtectionNEMA 3R, 4X, 12
  • Port LocationTop
  • Driver CircuitryIndicator, Internally Driven
  • Height - Seated (Max)2.234" (56.75mm)

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Quality and Reliability

We supply 100% original and brand-new ZT028LDCTR30 from Mallory Sonalert Products only.

Hard Find Electronics Tech Limited is committed to achieving the highest levels of quality to meet and exceed customer requirements. We have built a network of trusted suppliers and assembled a team of experienced professionals to serve our customers better. Our rigorous 3-step quality control process ensures that you receive the best possible service and products. All components supplied by us come with a 365-day quality warranty, guaranteeing your satisfaction and confidence in our products.

Order Guide
  • RFQ
    Source at least two reliable suppliers
  • QUOTE
    Information checking available/price/condition
  • QC PROCESS
    3-Step Quality Control and Professional Third-Party Test
  • SHIPMENT
    FedEx, DHL, UPS, TNT
In Stock: 9
Please send an RFQ for instant price and inventory.
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Multiples of 1

MORECustomer Reviews
  • Ma***el 
    We have received the good OPA551 and the parts for STM32F411VCT6 with thanks.
  • He***rs 
    Thanks, it is original, no counterfeit :-)
  • Uw***er 
    If we need more parts, we will be happy to contact you immediately.
  • Je***zy 
    Thank you very much for everything you have done so far for my cause.
  • Jo***er 
    I used one of the Darlington arrays (ULN2003) to make a relay module and tested an OP-amp in my line following robot. Every IC I have used so far works great.

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Mallory Sonalert Products

ZT028LDCTR30

In Stock: 9 | For reference only.