KXM1Z-63 series DC high breaking capacity miniature circuit breaker

Application:

B curve: DC non-inductive or micro inductive circuit

C curve: DV distribution circuit

Overload and short circuit protection

Model No. and meaning:

This series miniature circuit breakers meet the following criteria:

GB10963.2, IEC60898-2  

Normal working and installation criteria:

1.Surrounding temperature range: -35℃～+-70℃

2. Relative humidity: ≤95%

3.Altitude: ≤2000m.

4. Environment pollution degree should less than III degree

5.Installation place shouldn't have obvious impact or shake, no dangerous explosion neurogen, no etchant gas, and can't hit by dust, rain or snow

Feature:

1.  Rapid close: Ensure reliable working under impact load, extend circuit breaker life, have short circuit current limiting structure, high short circuit breaking capacity

2.  With overload and short circuit protection device: full protection function

3.  Adopt frame connection structure: safe and reliable wire connecting

4.  Various optional accessories: auxiliary contact(OF), alarm contact(SD), bus bar, easy to extended function.  

5.  Modularization: optional combination

6.  TH 35mm standard DIN rail installation: easy and convenient installation

Main performance index:

Mechanical electric life: 20000 times

Characteristic tripping curve:

B type instantaneous tripping current 4-7In

C type instantaneous tripping current 7-15In

Wire connecting capacity:

≤35mm² wire

Overall and installation size:

Pole	Characteristic tripping curve	Width(mm)	Rated current(A)	Product Model No.
	B,C	18	1	KXM1Z-63 1/1
			2	KXM1Z-63 2/1
			4	KXM1Z-63 4/1
			6	KXM1Z-63 6/1
			10	KXM1Z-63 10/1
			16	KXM1Z-63 16/1
			20	KXM1Z-63 20/1
			25	KXM1Z-63 25/1
			32	KXM1Z-63 32/1
			40	KXM1Z-63 40/1
			50	KXM1Z-63 50/1
			63	KXM1Z-63 63/1
	B,C	36	1	KXM1Z-63 1/1
			2	KXM1Z-63 2/1
			4	KXM1Z-63 4/1
			6	KXM1Z-63 6/1
			10	KXM1Z-63 10/1
			16	KXM1Z-63 16/1
			20	KXM1Z-63 20/1
			25	KXM1Z-63 25/1
			32	KXM1Z-63 32/1
			40	KXM1Z-63 40/1
			50	KXM1Z-63 50/1
			63	KXM1Z-63 63/1

Remark: KXM1Z-63 3P,4P is available to order according client's special request

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.