Yueqing Yijin Electronics Co., Ltd.
Isolating Switch
RS485 communication circuit breaker
Product IntroductionWIFI intelligent reclosing protector is suitable for remote control and multi person control in AC 50HZ and rated 220V power lines. It can be set to turn on and off according to Beijing time and is suitable for remote intelligent control of electrical equipment in various environments, such as homes, schools, enterprises, municipal engineering,…
Scope application
This product relates to the field of smart grid electronic communication technology and specifically belongs to a new type of fault addressed intelligent circuit breaker. It includes an intelligent power capacitor, an RS485 transceiver, a GPRS module, and a PC terminal. The intelligent power capacitor is wired to the PC terminal through the RS485 transceiver and wirelessly connected to the PC terminal through the GPRS module. The RS-485 communication intelligent circuit breaker overcomes the shortcomings of existing technology, adopts a half duplex network with RS485 serial port, selects ADM2483 with isolation enhancement as the transceiver, uses twisted pair cables for the bus, has good noise and interference resistance, and can transmit over long distances. When the communication speed is below 1000bps, the transmission distance can reach 1000 meters, and up to 256 transceivers are allowed to access the RS485 bus; Real time communication and data upload between intelligent power capacitors and PC terminals have been achieved, facilitating real-time monitoring of the power grid environment by engineering and technical personnel, reducing the difficulty and cost of power grid monitoring, and enabling engineering and technical personnel to adjust reactive power compensation schemes in a timely and effective manner.
Model Meaning
Normal working conditions
1. The surrounding air humidity is -40 ℃~+85 ℃, with an average value not exceeding+35 ℃ within 24 hours
2. The altitude shall not exceed 2000m.
3. The relative humidity of the air at the installation site under atmospheric conditions shall not exceed 50% at a maximum temperature of+40 ℃; Higher relative humidity is allowed at lower temperatures, with the average lowest temperature of the wettest month not exceeding+25 ℃ and the average maximum relative humidity of that month not exceeding 90%. And taking into account the condensation that occurs on the surface of the product due to temperature changes.
4. Pollution level: Level 2.
5. Installation category: Category II
6. Installation method: Adopting international standard guide rails.
7. Control method: APP remote control+local manual button control
Main parameters and technical performance
| PRODUCT MODEL | YJA2-485 |
| product name | RS-485 communication intelligent circuit breaker |
| rated operational voltage | AC230V |
| Rated withstand impulse voltage | 4kv |
| Rated working frequency | 50Hz |
| number of poles | 2P |
| Rated current of shell level | 40A |
| Electrical life | More than 6000 times |
| mechanical life | More than 10000 times |
| control model | Working mode, manual button |
| Other functions | Manual switch, remote control, timed delay |
| ambient temperature | -40℃~85℃ |
| pollution degree | level 2 |
| protection grade | IP20 |
| Installation method | Standard rail type |
The RS-485 intelligent circuit breaker is suitable for remote control in circuits with a rated voltage of 230V, frequency of 50Hz, and rated current of 40A. It is used for timing, delaying, distributing electrical energy, and carrying rated current during connection and disconnection.
Product size
When placing an order, it is necessary to specify the product model and quantity, for example: YJA2-485 40A 20 units; If there are special requirements, they should be noted separately.
For electrical maintenance and installation, it is necessary to ensure that the operator holds the qualification for electrical work and takes necessary power-off and insulation protection measures.
