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DZB7-63 Miniature Circuit Breaker
The Nb7 series miniature circuit breaker is applicable to the circuit with an alternating current of 50Hz,rated voltage of 230/400V, and rated current up to 63A for overload protection and short circuit protection, and also for not-frequent operational transformation in the circuti 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.
Type designation
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 instantaneousb release: type B (3-5)In, type (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
3.2.5 Wiring: good for connection of leads of less than 25mm (see Table 3); wiring method: screw hold-down with a toque of 2N·m
4. Overall and mounting dimensions (mm)
5. Ordering information
5.1 When ordering the goods,the user shall indicate the followingitems;
5.1.1 Types and names of products, for example, Nb7 miniaturecircuit breaker;
5.1.2 Instantaneous tripping type and rated current, for example,C25;
5.1.3 Number of poles: for example, 2P;
5.1.4 Amount on order, for example, 50 units;
5.2 Example for ordering: 50 units of the Nb7 series miniature circuit breakers, 2P, C25.