Stm1-63 4p MCB Circuit Breaker High Breaking Capacity Overload Protection

GENERAL
  STM1-63 series high breaking capacity mini circuit breaker is used in AC50/60Hz, rated voltage of 230V3, 4 poles 400V, rated current to 63A for overload and short-circuit protection as well as for unfrequented switching under normal case.It is used extensively for industry, commercial and household.This product conform to IEC60898 standard.

Specification:

Model	STM1-63 MCB
Pole	1P,2P,3P,4P
Rated Current(In)	1,2,4,6,10,16,20,25,32,40,50,63A
Rated Voltage(Un)	AC230(240)/400(415)V
Rated Frequency	50/60HZ
Tripping curve	B,C,D
Magnetic releases	B curve: between 3and 5 In
	C curve: between 5and 10In
	D curve: between 10 and 14In
Electro-mechanical endurance	over 6000 cycles

 1. Application:For protecting cables and equipments against overload and short circuit.
2. General rules for choosing MCB.
a. Technical data of the network at the point considered
The earthing systems,short-circuit current at the circuit breaker installation point,which must always be less than the breaking capacity of this device,network normal voltage.
b. There are 3 curvve characteristics for magnetic operation:
B curve (3-5In) protection and control of the circuits against length cables in TN and IT systems.
C curve (5-10In) protection and control of the circuits against overloads and short-circuits; protection for resistive and inductive loads with low inrush current.
D curve (10-14In) protection and control of the circuits against overloads and short-circuits; protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers,breakdown lamps.)

	Standard		IEC/EN  60898-1
Electrical features	Rated current In	A	1,2,4,6,10,16,20,25,32,40,50,63
	Poles	P	1,2,3,4
	Rated voltage Ue	V	AC  240/415
	Insulation voltage Ui	V	500
	Rated frequency	Hz	50/60
	Rated breaking capacity	A	45,006,000
	Rated impulse withstand voltage(1.2/50)Uimp	V	4000
	Dielectric test voltage at ind.Freq.for 1 min	Kv	2
	Pollution degree		2
	Thermo-magnetic release characteristic		B,C,D
Mechanical features	Electrical life	t	4000
	Mechanical life	t	10000
	Protection degree		IP20
	Reference temperature for setting of thermal element	ºC	30
	Ambient temperature (with daily average ≤35ºC)	ºC	-5~+40(Special application please refer to temperature compensation correction)
	Storage temperature	ºC	-25~+70
Installation	Terminal connection type		Cable/Pin-type busbar
	Terminal size top/bottom for cable	mm2	25
		AWG	18-3
	Therminal size top/bottom for busbar	mm2	25
		AWG	18-3
	Tightening torque	N*m	2
		In-lbs	18
	Mounting		on DIN rail EN 60715(35mm)by means of fast clip device
	Connection		From top and bottom

Our Services:

1. Competitive price
2. Continuance Service and support
3. Good-after service
4. Quality Reliability and Long Product Life.

FAQ:
1. What's the difference between type C and type D miniature circuit breaker?
A: type C is mainly used for power distribution control and lighting protection.type D is mainly used for motor protection.

2. How to calculate the ampere number formula?
A: it is known that the power divided by voltage is equal to the ampere (WN=A).

3. What is the difference between unipolar, bipolar and tripolar?
Answer: single pole (1P)220V cut off live wire, bipolar (2P)220V live wire and zero line colleagues cut off, three levels (3P)380V three-phase power all cut off

4. What is the meaning of the circuit breaker (C6, C10, C25, C32, C63, etc.)?
A: air switch c is the classification of circuit breakers, and the number represents the number A of circuit breakers.

5. How to select the right circuit breaker?
Answer: when choosing circuit breaker, should choose than the circuit breaker of electric current small. If the BV2.5 square wire bearing current is 26A, the circuit breaker should be selected below 25A.