Product Description：
1. With a higher performance-to-size ratio, it can provide users with more space for cable wiring and reduce the size of the switch cabinet;
2. Compact structure and extraordinary performance;
3. Extremely simple installation, operation and maintenance;
4. Complete accessories, easy to use and highly applicable;
5. It has the characteristics of small size, high breaking height, short arcing and vibration resistance;
6. Vertical or horizontal installation without reducing its technical performance;
7. On-site adjustable: The rated residual operating current and residual current operating time (non-delay and delayed) can be adjusted on-site according to the actual situation.
- Application
- Features
- Conditions of Use
- Quick Selection Table
- Technical Parameters
SFX series Residual current operated Circiut-breakers(hereinafter referred to as circuit breakers), SFX series earth leakage circuit breaker (hereinafter referred to as circuit breaker) has a rated insulation voltage of 1000V and is suitable for infrequent conversion and infrequent starting of motor in the circuit with AC 50HZ/60HZ, rated working voltage of 400V and rated working current of 400A. The circuit breaker has overload, short-circuit, under-voltage and residual current protection functions, which can protect the line and power supply equipment from harm, and the circuit breaker has isolation function.
1. With a higher performance-to-size ratio, it can provide users with more space for cable wiring and reduce the size of the switch cabinet;
2. Compact structure and extraordinary performance;
3. Extremely simple installation, operation and maintenance;
4. Complete accessories, easy to use and highly applicable;
5. It has the characteristics of small size, high breaking height, short arcing and vibration resistance;
6. Vertical or horizontal installation without reducing its technical performance;
7. On-site adjustable: The rated residual operating current and residual current operating time (non-delay and delayed) can be adjusted on-site according to the actual situation.
1. Installation site altitude: ≤2000m;
2. Operating ambient temperature: - 5 ~ + 40 ℃; the average value over 24 hours does not exceed +35 ℃; when the ambient temperature is higher than +40 ℃, the user needs to reduce the capacity;
3. Relative air humidity: no more than 95% at +20℃; no more than 50% at +40℃;
4. Installation environment: a place without significant vibration and impact , installation category : Level III ;
5. Can withstand the influence of mold, salt spray and oil mist;
6. It should be placed in an area without explosive hazard and without gases and conductive dust that can corrode metals and damage insulation;
7. In places where there is no rain or snow.
8. Pollution level: Level 3;
9. The installation category of the main circuit is III , and the installation category of the auxiliary circuit and control circuit is II .
