Reclosing Molded Case Circuit Breaker

CJ technogyseries intelligent residual current operated circuit breaker (referred to as leakage circuit breaker) is the latest generation of leakage circuit breaker products developed by our company in recent years with superior performance and complete functions. The product has won several national patents. It is suitable for low-voltage power grids with three-phase four-wire neutral point direct grounding (TT grounding system). It is used to provide indirect contact protection for personal electric shock hazard, and can also protect grounding faults, overcurrents, short circuits, etc. of lines or electricity.

Reclosing molded case circuit breaker Details:

Characteristics

The product has three types of common type, electronic adjustable type, and communication type.

1. Common type with residual current adjustable, auxiliary power supply over-voltage and under-current protection, automatic reclosing, residual current display, and action status indication. And other practical features.

2. The electronic adjustable type has the above functions and also increases the current setting function. The digital tube can also display the three-phase load current. In actual power consumption, the circuit breaker current can be set according to the size of the digital tube display power load. Setting value.

3. Communication: The communication type product is connected to the GPRS communication template, and can send the status message to the manager's mobile phone. (Communication type operation instructions are attached)

Normal working conditions

1 Ambient air temperature: -5 °C + 40 °C.

2 When the maximum humidity is +40 °C, the relative humidity of the air does not exceed 50%, and 90% is allowed at 20 °C; and the condensation on the surface of the product occasionally due to temperature changes is taken into consideration.

3 The altitude does not exceed: 2000 meters.

4 Pollution level: Level 3

5 Installation category: ‖

6 Power supply sine wave distortion is less than 5%

7 The installation site shall not exceed 5 times the earth's magnetic field in any direction of the external magnetic field.

No explosive or corrosive gas; no rain or snow; dry and ventilated.

Product model and meaning

Technical parameters

1 Rated voltage: 380V three-phase four-wire

2 Rated current: 100A frame: 40A 63A 80A 100A can be set; 250A frame: 100A 125A 140A 160A 180A 200A 225A 250A can be set; 630A (400A) frame 250A315A350A400A500A630A; 800A frame: 630A, 800A can be set

3 Rated frequency: 50Hz

4 rated residual operating current (mA: 0.05/0.1/0.2/03/0.5 can be set

5 Rated residual non-operating current (mA): 0.025/0.5/0.1/0.15/0.255.6 rated residual breaking time: <0.2s/0.5sS type/1sS type 57 delay reclosing time: 20-60s automatic reclosing 58 auxiliary power supply under voltage action value: single phase 168V ± 5% (automatically close after voltage returns to normal)

9 Auxiliary power supply overvoltage action value single phase 270V ± 5% (automatically close after voltage returns to normal)

10 Leakage action characteristics classification: AC type

11 Product Use Category A

12 This product complies with: GB14048.2

The protection characteristics of overcurrent release are shown in Table 2.

Product installation and function setting

1. Before power-on installation, put the power switch of the leakage circuit breaker in the “off” position! Green "point" is displayed in the opening and closing indication window.

2. The product should be installed vertically and fixed with screws through the mounting holes.

3 According to the rated current of the product, select the appropriate wire according to the standard (Table 3) and strictly follow the specified wiring. The circuit breaker indicates that the terminal 1, 3, 5, N are the power terminal of the main circuit, and the lower wiring is 2, 4, 6 , N is the load twist line end. The wire must be connected to the copper connector. After the wiring is completed, install the arc shield correctly.