Glossary entry (derived from question below)
English term or phrase:
break before make
Portuguese translation:
dispositivo de contacto de fecho antes de rutura
English term
professional, competent, fast
Native in: Portuguese (Variants: European/Portugal, Angolan)
Works in: English to Portuguese, Portuguese to English
break before make
Proposed translations
Portugal
Maria Teresa Borges de Almeida 
30+ years translating EU documents
Native in: Portuguese (Variant: European/Portugal) 
Works in: English to Portuguese, French to Portuguese, Spanish to Portuguese, and 1 more.
dispositivo de contacto de fecho antes de rutura
electronics and electrical engineering (6826) [INDUSTRY]
COM
en
make-before-break contact unit
COM
Reference: IEV 55-25-265
Definition: a change-over contact unit in which the second connection is made before the first is broken
Definition reference: IEV 55-25-265
Term Note: of a relay;REF:IEV 55-25-265
pt
dispositivo de contacto de fecho antes de rutura
Brazil
Always in search of the best solution!
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Spanish to Portuguese, Portuguese, and 2 more.
interruptor "break before make"
Brazil
Brazil-based EN>PT-BR translator
Native in: Portuguese (Variants: European/Portugal, Brazilian) 
Works in: English to Portuguese
chave com interrupção
checar a penúltima seção do artigo linkado (antes da conclusão)
Brazil
IT Specialist • M.A. in Linguistics
Native in: Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Spanish to Portuguese, Portuguese to English, and 1 more.
comutador sem interrupção (make before break)
https://eletronicaqui.com/2016/11/chaves/
Comutadores rotativos:
Podem ser de dois tipos: com interrupção (“break before make”) ou sem interrupção (“make before break”).
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