AC Power Failure Detector
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BLIIoT focus on Industrial AI Edge Computing Gateways and Industiral IoT Gateways and Solutions for industry 4.0 and Smart manfuacturing. > All Collections > 4G RTU & Router > AC Power Failure Detector
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  • 3-phase AC detector
  • 3-phase AC detector

AC Power Failure Detector

No.AVD300
AVD300 monitors 3-phase AC, alerts on power loss via relay signals. Used in hospitals, telecom, industry. AVD300 monitors 3-phase AC supports SMS alerts. 
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Description
The AVD300 power-off sensor is designed to monitor three-phase alternating current (AC) systems. It outputs switching signals (normally closed or normally open) when any phase (A, B, or C) or 220V power is interrupted. It is widely used in critical environments requiring reliable power monitoring, such as communication rooms, hospitals, and industrial facilities. The device supports customization for remote notifications via smartphone or GSM SMS alerts.



Key Features
  • Alarm Mode: Outputs switching signals upon power failure in any phase (A, B, C) or 220V power loss.
  • High Voltage Isolation: Insulation voltage >1500V between probe and trigger ends.
  • Flame-Retardant & Explosion-Proof: Uses semiconductor contactless switching, eliminating spark risks.
  • Safe & Reliable: No heating elements or elevated temperatures during long-term operation.
  • Wide Voltage Range: Supports AC380V ±20% and AC220V ±20% (customizable for 380V three-phase three-wire systems).
  • Durable Design: Operates in harsh environments (-30°C to +90°C, ≤90% RH humidity).
  • Compact Size: 86×36×58 mm.

Typical Application Scenarios
  • Communication machine rooms
  • Hospitals and healthcare facilities
  • Power supply systems
  • Government offices and banks
  • Industrial and mining facilities
  • Customs and other critical infrastructure

Technical Specifications
Parameter Specification
Monitoring Voltage AC380V ±20%, AC220V ±20% (customizable for 380V three-phase three-wire)
Alarm Output Passive relay contacts (NC, COM, NO)
Insulation Voltage >1500V (probe to trigger)
Operating Temp. -30°C to +90°C
Humidity Range ≤90% RH
Dimensions 86×36×58 mm
Safety Standards Flame-retardant, explosion-proof, no sparking during operation

Packaging
  • 1 x AVD300
  • 3-phase AC detector

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