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01

Purpose of Use

1

Key Technical Parameters

2

NXB-63 and NXB-63H series miniature circuit breakers are mainly used 

for the circuit of AC 50Hz or 60Hz with rated voltage of 240V or 415V and 
rated  current  of  63A,  which  provide  overload  and  short-circuit  protection 
and are also used as the infrequent making/breaking operation of the circuit 
under normal conditions.

Table 1 Key Technical Parameters

Altitude

Pollution level

Installation category

Rated operating voltage 
Ue(V)

Rated short-circuit 
breaking capacity I

cn

Enclosure protection class

2000m

Level 2

Class II and III

AC 220V or 230V or 240V (1P, 1P+N, 2P)
AC 380V or 400V or 415V (2P, 3P, 3P+N, 4P)

6000A, 10000A (H Type)

IP20

Содержание NXB-63

Страница 1: ...NO 2020 04 Standard IEC EN 60898 1 User Instruction NXB 63 NXB 63H Miniature Circuit Breaker ...

Страница 2: ...package Tighten the wiring screws when installing the product to prevent wires from loose or being pulled out Select wires strictly according to instructions and connect them to proper power supply and load The product cannot protect people from electric shock or against power imbalances Do not install the product at places where gas media can cause metal corrosion and insulation damage The produc...

Страница 3: ...and short circuit protection and are also used as the infrequent making breaking operation of the circuit under normal conditions Table 1 Key Technical Parameters Altitude Pollution level Installation category Rated operating voltage Ue V Rated short circuit breaking capacity Icn Enclosure protection class 2000m Level 2 Class II and III AC 220V or 230V or 240V 1P 1P N 2P AC 380V or 400V or 415V 2P...

Страница 4: ...Outline and installation dimensions 2 On off indication Unit mm 1P 1P N 2P 3P 3P N 4P 81 0 1 20 54 0 1 20 36 0 0 62 18 0 0 43 77 8 1P 0 1 20 76 8 2P 4P 0 1 20 65 5 0 37 42 5 0 31 45 0 31 72 0 1 20 Red Green I ON OFF on off ...

Страница 5: ...isassembly 7 5 35 27 TH35 7 5 type mounting rail 5 Wiring copper wires only 1 6 10 16 20 25 32 40 50 63 1 1 5 2 5 4 6 10 16 Rated current In A 2 Copper wire cross sectional area S mm Table 2 Copper wire cross sectional area ...

Страница 6: ... current of the circuit breaker does not match the load current The wire is loose or not properly fixed by wiring screws The cross sectional area of the selected wire is too small Eliminate the fault Replace the product Replace with product of proper specifications Tighten the wiring screws Replace with wire of proper specifications The handle cannot close the circuit breaker No power Temperature ...

Страница 7: ...Breaker IEC EN 60898 1 Check 12 Environmental Protection 5 In order to protect the environment the product or product parts should be disposed of according to the industrial waste treatment process or be sent to the recycling station for assortment dismantling and recycling according to local regulations 05 ...

Страница 8: ...niature Circuit Breaker User Instruction Zhejiang Chint Electrics Co Ltd Add No 1 CHINT Road CHINT Industrial Zone North Baixiang Yueqing Zhejiang 325603 P R China E mail global sales chint com Website http en chint com ...

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