Related Manuals for CHINT NXB-125
Summary of Contents for CHINT NXB-125
- Page 1 NO:2020.04 NXB-125 Moulded Case Circuit Breaker User Instruction Standard: IEC/EN 60947-2...
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Page 2: Safety Warning
Safety Warning Installation in any damp, condensed-phase environment with inflammable and explosive gas is forbidden. It is strictly prohibited to operate the product with wet hands. You are prohibited from touching the conductive part when the product is operating. It is strictly prohibited to test the performance of the product by the direct contact of the hot wire against the grounding device or the direct short circuit of the hot wire and the neutral wire. -
Page 3: Purpose Of Use
Purpose of Use The NXB-125 moulded case circuit breaker is applicable to circuits with frequency of AC 50 Hz, rated voltage up to 240/415 V and rated current up to 125 A. It provides overload and short circuit protection, and can also be used for infrequent switching of the circuit under normal circumstances. - Page 4 2. On-off indication Green I·ON ·OFF 3. Installation ② ① ③ ④ TH35-7.5 type mounting rail 4. Disassembly ② ① ③...
- Page 5 5. Wiring: copper wires only Table 2 Copper wire cross-sectional area Rated current I Copper wire cross-sectional area S (mm ) 15.5mm 50mm Wiring torque 15.5mm 3.5N·m 50mm 18.5mm 50mm 18.5mm 50mm...
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Page 6: Maintenance
Maintenance 1、Check the circuit breaker on a regular basis during operation; 2、After the circuit breaker cuts off the overload or short-circuit current, the fault should be eliminated before closing the circuit breaker. Table 3 Analysis and troubleshooting of common faults Symptoms Cause analysis Troubleshooting method... - Page 7 QC PASS NXB-125 Moulded Case Circuit Breaker IEC/EN 60947-2 Check 24 Test date: Please see The packing ZHEJIANG CHINT ELECTRICS CO.,LTD.
- Page 8 NXB-125 Moulded Case 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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