Varistors are used to protect the intercom from the electronic circuit, they are often necessary to install in electric locks.
This varistor is the one administered by Fermax for installation in its intercoms, video intercoms or door openers.
Technical Specifications of Varistor V22ZA2-10mm14V-10N220K
Connect one varistor across the gate opener terminals and another across the amplifier terminals C and N.
Maximum allowed voltage AC (V): 14
Maximum allowable DC voltage (V): 18
Clamping voltage (V): 43
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