TO231N Residual Current Circuit Breaker with Overcurrent Protection (RCBO)

Applicable scope
TO231N series Residual Current Circuit Breaker with Overcurrent Protection (hereinafter referred to as the circuit breaker) is suitable for use in AC 50 Hz, nominal voltage 230/400V, use in household and similar place with rated current to 40 A or below. Mainly provide protection to the personal electrical shock and ground fault of line equipment, also can be used to protect lines or equipment overload and short circuit. At the same time the product with isolation function, can be used in normal circumstances as the not frequent changeover of line.

Carried Standard: GB16917.1 IEC61009
Use Condition
1. Air temperature is not less than-5Deg, not higher than+40Deg, daily average temperature not more than +35Deg.
Air temperature higher than+40Deg(Especially in tropical countries and regions)or lower than-5Deg, the circuit breaker should use special design.
2. Installation place altitude not more than 2000 meters.
Air relative humidity, in the highest temperature + 40 Deg not more than 50%, in lower temperature can have high humidity, such as 2Deg, relative humidity is 90%, and allow gel in the product surface due to temperature changes.
4. The installation place pollution in level 2.
5. The installation categories for II.
6. The external magnetic field of installation palce, any direction should not more than 5 times.

Structural features
Circuit breaker consist of contactors, arcing system, Electronic Magnetic System(EMS), tripping organization, operating mechanism and leakage tripping systems, Electronic Magnetic System adopt precision-type and resistance type double heat metal materials, Contacts with a silver graphite materials, The shell is made of high flame resistant and environmental plastic materials, ensure product performance.
2. Working principle:
In the normal work of circuit breaker push operation mechanism, make the power is connected, at this moment the tripping mechanism atresia, contacts can't action, When the circuit overload, Bimetallic strip of EMS bending deformation, push the lock catch, make the mechanism tripping reset, and cut off the circuit; When short circuit, instantaneous tripping device action, Iron core mandril push lock catch make the mechanism tripping reset, and cut off the circuit; When personal electric shock or line equipment leakage reach to rated value, Leakage tripping device action, Make operator mechanism action, thus finish the breaking protection process of circuit break.

Product Advantage
Under the research and development of our technology team, 18 mm modular 1 P + N leakage circuit breakers, in the tiny space, integrated all functions of leakage and circuit breaker, Breaking capacity reach to 6000 A, And through the EMC electronic compatibility test, at present the important and difficulty of the two tests, the other manufacturers still couldn't do it. In addtion, all angles leakage tripping current are very stable of this type A product.