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
