Overtemperature Contactor - Danfoss AHF 005 Manual

Harmonic filter

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Overtemperature contactor

The Danfoss harmonic filter AHF 005 and AHF 010 is equipped with a galvanically isolated contactor that is

closed under normal operating conditions and open if the filter is overheated. This contactor must be used to

prevent damages to the filter caused by overtemperature as shown in the following example.

NOTE

The maximum rating of the overtemperature

contactor is 250V AC and 10A.

Example: Connect terminal A of the harmonic filter

to terminal 12 or 13 (voltage supply digital input,

24V) of the Danfoss adjustable frequency drive

and terminal B to terminal 27 (digital input "Coast

Inverse"); the adjustable frequency drive will let go of

the motor (coasting) and thereby unload the filter if an

overtemperature is detected.

MG.80.B4.22 - VLT is a registered Danfoss trademark

AHF 005/010

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