KXB2LE-63 high breaking miniature residual current protection circuit breaker series

Application: KXB2LE-63 series high breaking miniature residual current protection circuit breaker apply to AC 50Hz, rated voltage lower than 230/400V, rated current 1-63A lighting or distribution circuit for electric shock protection and personal indirect protection, it can provide indirect protection to personal safety and electric apparatus safety when personal shock or electric grid leakage current exceed specified parameter.

This product is widely used to industrial, commercial and civilian buildings.

According to criteria: GB16917,GB10963,IEC61009,IEC60898.

Model No. and meaning:

Structure characteristic:

KXB2LE-63 series residual current protection circuit breaker, consist of leakage current protector and KXB2-63 circuit breaker, leakage current protector can be used individually. Leakage current protector adopt current operation type digital residual current protection. Mainly consist of zero sequence current inductor, electric component plate, leakage current tripper device and circuit breaker with overload and short circuit protection.

Normal working and installation criteria:

1.Surrounding temperature range: -5℃～+40℃

2.Altitude: lower than 2000m.

3. Pollution degree: III degree

4. Installation type: III type

5.Installation position: install vertical or horizontal

6.Surrounding protection: components material can recycle or can natural degradation

Main technical parameter:

Tripping indicate: beside of KXB2LE accessories operation handle have red tripping indication

Manual control: handle with 2 restart modes, circuit breaker and leakage current device restart simultaneous or circuit breaker and leakage current device restart individual,  leakage current device restart firstly, circuit breaker restart later.

Warns to user: Rated residual current lower than 30mA have protect personal safety function.

Overall and installation size:

Bimetal:   Actually, it contains three metals iron, copper, cadmium, galvanized. Three metals with different coefficients of thermal expansion, bending cause thermal Pick reflect and making the breaker disconnect. This is the most import parts of the circuit breaker.  The Bimetal is the use of different materials under different breaker amperage.

Coil:  It's the important parts for the reaction of the Magnetic Trip. It's always 9 ring. As a matter of fact, the number of Coil with Different Amperage.For example, 1A reaches over 100 ring, and 63A is used to 56 ring. The Diameter Thickness is also different for Amperage.

Action Contactor(Sliver Point): It's the main point for the Reaction of Trip. Under normal conditions, keeping closed. When overload and short circuit, It will be breaking.

Arc Chute: Playing a role in destroying the arc. Generally tend to produce a large number of Moving and Static Contactor from the contactor, arc, even emerge spark.