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Transformer Components / Transformer Accessories

Buchholz Relay

Gas and oil-surge relay with alarm and trip contacts.

Buchholz Relay

Buchholz relays protect oil-immersed transformers against gas accumulation and oil surge. Supplied with test cock, sight glass and IP-rated terminal box.

Typical specifications

Connection
DN25 – DN80
Contacts
Alarm / trip
Protection
IP54 terminal box

Indicative ranges. Final specification is confirmed per drawing and order.

Standards

  • IEC 60076-22-1

Applications

  • Oil-immersed transformers

Specification check

Send the drawing. We will confirm tolerances before quoting.

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