Overview

The HR5 Series Fuse Disconnecting Switch (hereinafter referred to as “switch”) is suitable for the distribution circuits and motor circuits with high short-circuit current with AC 50 Hz, rated voltage of 380 V and conventional thermal current up to 630 A. This product is used as the power switch, disconnecting switch and emergency switch that are not frequently operated manually, and for the short-circuit protection, but generally not used to directly switch on and off a single motor.

The switch is simple in structure and easy to operate. It complies with GB/T 14048.3 and IEC 609 47-3 and is the best choice among similar products.

Normal working conditions

1.Ambient air temperature: The temperature shall not be higher than +40°C or lower than -5°C, and the average value within 24 hours shall not exceed +35°C.

2.Altitude: The altitude of the installation location shall not exceed 2,000 meters.

3.Relative humidity: The relative air humidity shall not exceed 50% when the maximum ambient temperature is +40°C, and a higher relative humidity is allowed at a lower temperature (for example: 90% humidity at +20°C), but the occasional condensation on the switch surface due to temperature changes shall be considered.

4.Contamination grade of the surrounding environment: Grade 3.

5.Installation category: III.

6.Installation conditions: The switch shall be installed vertically in a place without significant shaking, impact or vibration and in a medium without explosion risks, or enough gas or dust to corrode metals or destroy the insulation.

7.Please consult with our company for the use occasions under abNormal working conditions.