Yueqing Yijin Electronics Co., Ltd.
Isolating Switch
HD11F-250 protective opening knife switch
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
HD11FSeries opening knife switch suitable for AC50HzRated voltage up to400VUp to and including rated impactVoltage8kVIn the control circuit, the performance of personal safety protection has been improved to prevent accidental electric shock. This series of productsMainly used in low-voltage distribution equipment for infrequent manual connection, disconnection, and isolation of power supply. The operation should be carried out without interruptionUnder load conditions. This product complies withGB/T14048.3、IEC60947-3Standard.
Model Meaning
Normal working conditions
1. The ambient air temperature shall not exceed+70 ℃, not be lower than -25 ℃, and the average temperature value within 24 hours shall not exceed+35 ℃.
2. The altitude of the installation site shall not exceed 2000m.
3. Humidity: When the maximum temperature is+60 ℃, the relative humidity of the air should not exceed 95%. Special measures should be taken for occasional condensation caused by temperature changes.
4. The surrounding environmental pollution level is level 3.
5. The switch should be installed in a place without significant shaking, impact vibration, and no rain or snow invasion. At the same time, the installation location should be free of explosive hazardous media, and there should be no gas or dust in the media that can corrode metals and damage insulation.
Product advantages and features
1. The contact blade, blade holder, and blade holder are all treated with bright tin plating, enhancing surface protection and improving wire connectionThe contact resistance improves the durability and stability of the product.
2. Equipped with anti misoperation design, it can effectively prevent accidental electric shock, especially suitable for use in complex environments, and improvePersonal safety protection.
3. Thickened all copper parts, with added fastening ring design, ensuring tight contact without looseness.
Main technical parameters
| model |
HD11F-250/4 (or/3) |
| specifications | 3P, 4P |
| Rated working voltage Ue | 400V |
| Rated insulation voltage Ui | 1000V |
| Agreed heating current lth | 250A |
| rated working current | 160A, 180A, 200A, 225A, 250A |
| Rated working frequency | 50Hz |
| Rated impulse withstand voltage Uimp | 8kV |
| Utilization category | AC-20B |
| Rated short-time withstand current Icw (kA) | 3kA |
| Mechanical lifespan (times) | ten thousand |
Usage and maintenance
Before installation, check whether the switch is intact and operates flexibly;
The working conditions should comply with the regulations of normal working conditions;
Switches should be regularly maintained and adjusted to remove dirt, maintain cleanliness, and ensure that the contacts work in good contact condition;
Product appearance and wiring diagram
HD11F-250/3
HD11F-250/4
Ordering Instructions
The ordering unit must specify the form and characteristics of the switch, voltage level, current level, number of poles, operation mode, and quantity. For special orders, please consult our technical department.
For example: 50 units of HD11F-250/3 and 250A;
50 units of HD11F-250/4 and 250A.
