"circuit breaker" meaning in English

{
  "etymology_text": "circuit breaker < → δείτε τις λέξεις circuit και breaker",
  "forms": [
    {
      "form": "circuit breaker"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "main breaker"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Ηλεκτρολογία (αγγλικά)",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "διακόπτης κυκλώματος (κυριολεκτικά), αυτόματη ασφάλεια, ασφαλειοδιακόπτης"
      ],
      "id": "el-circuit_breaker-en-noun-ki0EAWIj",
      "raw_tags": [
        "ηλεκτρολογία"
      ],
      "related": [
        {
          "word": "fuse"
        }
      ]
    }
  ],
  "word": "circuit breaker"
}

{
  "etymology_text": "circuit breaker < → δείτε τις λέξεις circuit και breaker",
  "forms": [
    {
      "form": "circuit breaker"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "main breaker"
    }
  ],
  "senses": [
    {
      "categories": [
        "Ηλεκτρολογία (αγγλικά)"
      ],
      "glosses": [
        "διακόπτης κυκλώματος (κυριολεκτικά), αυτόματη ασφάλεια, ασφαλειοδιακόπτης"
      ],
      "raw_tags": [
        "ηλεκτρολογία"
      ],
      "related": [
        {
          "word": "fuse"
        }
      ]
    }
  ],
  "word": "circuit breaker"
}