Product Details:
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Pole: | 1P,2P,3P,4P | In: | 1,2,4,6,10,16,20,25,32,40,50,63A; 63,80,100,1225A |
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Standard: | IEC60898-1 | Breaking Capacity: | 3kA,4.5kA,6kA,10kA |
Credential: | CE | Type: | DC MCB |
High Light: | miniature circuit breaker,miniature current circuit breaker |
STM11-125 series high breaking capacity mini circuit breaker is used in AC50/60Hz, rated voltage of 230V
3, 4 poles 400V, rated current to 125A 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. Rated Volatage is 12,24,48,120,220,250,500,750,1000VDC .
Advantages:
High breaking capacity , all rated current can reach 6KA,10KA;
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.
General
1. 1.Application:For protecting cables and equipments against overload and short circuit.
2. 2.General rules for choosing MCB.
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 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;63,80,100,125A |
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) |
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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 DIN rail EN 60715(35mm)by means of fast clip device | ||
Connection | From top and bottom |
Our Services:
Competitive price
Continuance Service and support
Good-after service
Quality Reliability and Long Product Life.
Contact Person: Mr. Sunny Zhang
Tel: 86-13868610160
Fax: 86-577-67235072