Hot Sale Snl7 3p Series (MCB) Miniature Circuit Breaker 63A 10ka
GENERAL
SNL7 series high breaking capacity mini circuit breaker is used in AC50/60Hz, rated voltage of 230V
3, 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.
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.)
Advantages:
High breaking capacity , all rated current can reach 6KA;
Many kinds of accessories can be chosen, in modularize and flexibility combine that make the customer install conveniently;
The cover and function parts both are made of inflaming retarding, bear high temperature and bear impact plastic;
The breaker is applicable to lighting distribution system in industrial enterprise, commercially district, high-rise building and dwelling house.
Specifications
|
Model
|
SNL7 |
| Pole |
1p,2p,3p,4p |
| Rated Current(In) |
1,2,4,6,10,16,20,25,32,40,50,63A |
| Rated Voltage(Un) |
230/400V |
| 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 |
| |
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 |
230/400 |
| Insulation voltage Ui |
V |
500 |
| Rated frequency |
Hz |
50/60 |
| Rated breaking capacity |
A |
4500,6000 |
| 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 |
℃ |
30 |
Ambient temperature
(with daily average ≤35℃) |
℃ |
-5~+40(Special application please refer to
temperature compensation correction) |
| Storage temperature |
℃ |
-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 DDIN rail EN 60715(35mm)by means of fast clip device |
| Connection |
|
From top and bottom |
Product Usage:
General rules for choosing MCB,For protecting cables and equipments against overload and short circuit.
a. Technical date of 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 curve characteristics for magnetic operation:
B curve (3-5 ln) protection and control of the circuits against length cables in TN and IT systems.
C curve (5-10 ln) protection and control of the circuits against overloads and short-circuits; protecton for resistive and inductive loads with low inrush current.
D curve (10-20 ln) 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)
Our services have competitively price,we can provide after sale service,our product quality are very good,it has a long life
Product Tags:
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Light Weight Snl7 3p Series ( MCB ) Miniature Circuit Breaker 63A 10ka Images
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