Related Manuals for CHINT NB2-80ZT
Summary of Contents for CHINT NB2-80ZT
- Page 1 NB2-80ZT Miniature Circuit Breaker With Remote Control Function User Instruction 英文使用说明书 0463B1657 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.
- Page 3 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 Operating short-circuit breaking capacity (Ics) 6000A Electrical life 6000 times Mechanical life 10000 times Reference temperature 30 ℃±2 ℃ Closing time (tc) ≤3s Remote control Opening time (to) ≤2s Setting value of The default value is AC280V ± 5V, overvoltage action (Uvo) which can be set Overvoltage recovery The default value is AC250V, which can...
- Page 5 Table 2 Maximum Action Time and Minimum Non Drive Time of Overvoltage Overvoltage action ≥300V ≤Uvor characteristics Maximum action time Inaction Minimum non driving time 3.2 Basic error of voltage and current measurement Table 3 Basic error limits of current under reference voltage Percentage error limit Direct input current value Grade 0.5...
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Page 6: Remote Control Function
-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. 4.2 communication protocol The circuit breaker adopts Modbus RTU communication protocol. The default communication address of the circuit breaker is 03, which conforms to the national standard GB/T 19582. - Page 7 Opening and Manual automatic nothing Closing allowing closing closing Send the Opening and allowing automatic opening Closing closing command Opening and Opening and not Send the allowing closing allowing closing Automatic command of or manual not allowing Opening and not Closing closing allowing closing...
- Page 8 In case overvoltage/ undervoltage fault, circuit breaker acts Ue→≥ to open. If Automatic Opening and allowing overvoltage/ nothing Closing or manual closing undervoltage Ue→≤ fault occurs 3 times continuously within minutes, will enter the opening/not allowing closing state Following No. 11, when the ≥Uvo→...
- Page 9 Send the Remote Manual opening Closing Closing control fails command to open Opening and Opening and allowing Auto → Manual allowing closing closing Keep the Opening and not Opening and not Ue or 0 V nothing original state allowing closing allowing closing Manual →...
- Page 10 7 Outline and installation dimensions ■ Overall dimensions (unit: mm) Figure 1 Boundary Dimensions of Circuit Breaker ■ Communication port Figure 2 Installation Position of Communication Interface...
- Page 11 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 8.3 Disassembly Diagram Fig. 5 Disassembly Diagram 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...
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Page 13: Maintenance
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, and detect the status indication modes of manual and automatic. 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 14 Observe whether the indicator light Overvoltage/undervoltage in the line flashes automatically switches on after voltage recovery When over/under voltage faults occur for more Unlock after confirming the line than 3 times in a row within 10 minutes status When the remote command of closing is not Unlock after confirming the line allowed status...
- Page 15 2) Damage caused by organizations or personnel not designated by the company, or self disassembly and maintenance; 3) The product exceeds the warranty period; 4) Damage caused by force majeure 11.2 Environmental protection To protect the environment, when this product or its components are scrapped, please properly treat them as industrial wastes;...
- 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 NB2-80ZT NB2-80ZT 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 60898-1 IEC/EN 60898-1 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...