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The WSP-AVI-011 Wallis metal oxide varistor failure surge protector
Wiring diagram of a WSP-AVI-011 metal oxide varistor monitoring device

This audio-visual indicator is DIN rail mountable and permits a clear warning that the metal oxide varistor components within a Surge Protection Device (SPD) have failed.

The device connects to the remote monitor outputs of the SPD, where provided, and can be powered by the mains supply (WSP-AVI-011) or battery (WSP-AVI-010) whichever is appropriate.

Fitted with an on-board Mute button which allows the audio to be switched off for convenience during maintenance.

Features and Benefits:

  • Simple to install.
  • On-board mute button.
  • Battery life typically >5 years.
Enclosure + BaseEnclosure MaterialBase MaterialVisual IndicationMax Operating VoltageCable RequirementPart Number
Enclosure + BaseUL94 V-OEnclosure MaterialPC - Light Grey RAL 7035Base MaterialPPO - BlackVisual IndicationRed LED through clear lensMax Operating Voltage275VacCable Requirement0.5mm2Part NumberWSP-AVI-010


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