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Summary of Contents for CHINT NB2LE-80ZT
- Page 1 NB2LE-80ZT Residual Current Operated Circuit Breaker With Remote Control Function User Instruction 英文使用说明书 0463L1651 浙江正泰电器股份有限公司 2023 年 4 月...
- Page 2 Safety Warning 1) It is strictly prohibited to install the product in an environment containing flammable and explosive gases, wet condensation, and wet hand operation. 2) It is forbidden to touch the conductive part of the product during the operation of the product. 3) It is forbidden to test the product performance by using the method that the live wire directly touches the grounding device, or the live wire is directly shorted to the neutral wire.
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Page 3: Main Technical Parameters
2 Normal use, installation, transportation and storage conditions 2.1 Service conditions: - Working environment temperature: - 25 ℃~+70 ℃, and the average working temperature for 24 hours shall not exceed+35 ℃; - Altitude: the altitude of the installation site shall not exceed 2000m; - Pollution level: Level 2;... - Page 4 Rated residual action current (I△n) 0.01A、0.03A、0.1A Rated short-circuit capacity (Icn) 6000A Operating short-circuit breaking capacity (Ics) 6000A Rated residual making and breaking capacity (I(m) 800A Electrical life 6000 times Mechanical life 10000 times Reference temperature 30 ℃±2 ℃ Closing time (tc) ≤3s Remote control Opening time (to)
- Page 5 Accuracy electric current Grade 0.5 power Level 1.0 Check whether zero sequence transformer Continuous self-test and circuit board leakage module work normally Leakage self inspection Power off self inspection, Check whether zero sequence transformer, self inspection completed circuit board leakage module and circuit automatic reclosing breaker tripping mechanism work normally Note: "Can be opened or closed"...
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Page 6: Communication Function
4 Communication function 4.1 Communication interface The circuit breaker has one RS485 communication interface and Bluetooth interface. RS485 interface: -Support baud rate 1200,2400,4800,9600,19200,115200; -Verification method: no verification/even verification; -Default configuration: 19200, even parity check. Bluetooth interface: -Comply with BLE4.2 standard; -As a Bluetooth slave, the circuit breaker supports the connection of up to two Bluetooth hosts at the same time. - Page 7 Table 5 Control Signal and Status Control Table of Circuit Breaker Mode selection Phase line control Initial state Status after action remarks switch voltage signal position Send Opening and automatic closing Closing allowing closing command Opening and allowing Manual automatic nothing Closing closing...
- Page 8 Opening and Opening and allowing The line is allowing closing closing powered down and automatic Ue→0V nothing Opening and not Opening and not remains in allowing closing allowing closing the original state Closing Closing In case of overload, short circuit Automatic Opening and allowing and other...
- Page 9 when the Or ≤ power Uvu→ supply Uvur voltage recovers, the circuit breaker automaticall y closes Send Remote Opening and Opening and allowing Manual closing control fails allowing closing closing command to close Send the Remote Manual opening Closing Closing control fails command to open...
- Page 10 After tripping due to overload, overvoltage, undervoltage, phase Flashing red failure and underfrequency fault Table 7 Status of Button Indicator Status of circuit breaker after energization Indicator light display During normal power on Always bright blue When operating the test button and tripping due to Red is always on leakage current Re closing after troubleshooting...
- Page 11 ■ Communication port Figure 2 Installation Position of Communication Interface 8 Installation, commissioning and operation 8.1 Before installation and use: check whether the circuit breaker mark is consistent with the working conditions used;Before power on, the circuit breaker shall be operated several times, and its mechanism action shall be flexible, reliable, and free of blocking.See Figure 3 for the circuit breaker closing/opening status indication and the "Automatic"/"Manual"...
- Page 12 8.2 Installation mode TH35-7.5 mounting rail is used for installation, as shown in Figure 4. Fig. 4 Installation Diagram 8.3 Disassembly Diagram Fig. 5 Disassembly Diagram...
- Page 13 8.4 It is applicable to copper wire connection. See Table 7 for wire selection and Figure 6 for wiring mode and stripping length. Table 7 Requirements for Cross sectional Area of Copper Conductor Rated current In(A) Cross sectional area of copper conductor(mm 16、20 Figure 6 Wiring Mode and Stripping Length Note: Before power on, check whether the wiring is correct and firm, verify the flexibility of the handle action,...
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Page 14: Maintenance
9 Maintenance The circuit breaker shall be checked regularly during operation. When the circuit breaker fails to trip and open (such as overload, short circuit, overvoltage, undervoltage, phase loss, underfrequency, etc.), the fault shall be eliminated first, and then the circuit breaker shall be closed manually to restore power supply. - Page 15 The sectional area of selected conductor is too Replace wire specification small Fail to open in case The selected circuit breaker does not match the Replace product specifications of short circuit working conditions of the load Wire stripping is too short Re stripping No power The wiring screw does not compress the wire...
- Page 16 要求说明 CHINT 品牌管理部提供封面形象， 包括 CHINT 商标 如下内容设定在封面的排列位 “闪电符号” 正泰文化元素 置的版式 按产品使用说明书技术文件修 NO:2023.04 NO:2023.04 版本号 订年月确定 空留位置， 将来的产品实际维护 产品二维码 情况标识 NB2LE-80ZT NB2LE-80ZT 产品型号系列 产品单位填写使用说明书实际 Residual Current Operated 所涵盖产品系列型号、名称。本 产品名称 剩余电流动作断路器 行只印刷型号 Circuit Breaker IEC/EN 61009-1 IEC/EN 61009-1 符合标准号 产品实际所符合的国际标准 集成系统业务部组织按技术文 User Instruction 封面标题...
- Page 17 列 Residual Current Operated Circuit 产品名称 剩余电流动作断路器 Breaker User Instruction 使用说明书 封底标题 Zhejiang CHINT Electrics Co., Ltd. 浙江正泰电器股份有限公 Add: No.1, CHINT Road, CHINT 生产者（制 司 Industrial Zone, North Baixiang, 造商）名 地址：浙江省乐清市北白 统 一 总 部 海 外 最 新 信...
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