NB7 Miniature Circuit Breaker

NB7 Miniature Circuit Breaker

Yayınlandı: 19 Ağustos 2015 · Kategori: Kataloglar

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Modular DIN Rail Products MCB 2. Type designation N B7 Design number Miniature circuit breaker Company code 3. Technical data 3.1 Main specifications 3.1.1 Graded according to the rated current In: 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A; 3.1.2 Classified as follows according to the type of instantaneous release: type B (3-5)In, type C (5-10)In, type D ((10-16)In; 3.1.3 Categorized as follows according to the number of poles: a. Single pole b. Two poles c. Three poles d. Four poles 3.2 Technical parameters 3.2.1 For the rated short circuit breaking capacity, see Table 1 NB7 Miniature Circuit Breaker Table 1 Rated current In (A) 1. General The NB7 series miniature circuit breaker is applicable to the circuit with an alternating current of 50Hz, rated voltage of 240/415V, and rated current up to 63A for overload protection and short circuit protection, and also for notfrequent operational transformation in the circuit under normal condition. This product can be applied to various places such as industrial, commercial, and tall buildings, and residential houses. The product meets the standards of IEC60898-1. B, C type: 1~40 B, C type: 50 63 D type: 1~63 Number of Rated voltage Rated short circuit capacity Icn (A) poles Ue (V) 1 240/415 2, 3, 4 415 1 240/415 2, 3, 4 415 1 240/415 2, 3, 4 415 6000 4500 3.2.2 Mechanical/electrical Life a. Electrical life: not less than 4,000 times b. Mechanical life: not less than 10,000 times 3.2.3 For the over current...