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Reputation is the first, quality is the priority.
7 Years
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| Brand Name : | SONTUOEC ,WZSTEC |
| Model Number : | ST45 |
| Certification : | CE |
| Price : | Negotiable |
| Supply Ability : | 200pcs/day |
| Delivery Time : | 5-8days |
ST45 series DW45 universal circuit breaker(hereinafter referred to as
breaker)is suitable
for the circuit of AC 50Hz with rated voltage 400V, 690V and rated
current up to 6300A.
It is mainly used to distribute electric energy and protect
circuits and power-supply
equipment from overload, under-voltage, short-circuit and
single-phase earthing. with
intelligentized and selective protection functions, the breaker can
improve the reliability
of power supply, and avoid unnecessary power failure. The breaker
is applicable for
power stations, factories, mines(for 690V) and modern
high-buildings, especially for the
distribution system of intelligentized building. This breaker
conforms to IEC60947-2 and
GB14048.2. The whole series have past CCC certification.
3.Feature of Intelligent Air Circuit Breaker(ACB)
| Type | ST45 -2000 | ||
| Pole | 3P, 4P | ||
| Using categary | B | ||
| Rated current In | A | 630, 800, 1000, 1250, 1600, 2000 | |
| Rated frequency | Hz | 50/60 | |
| Rated operation voltage Ue | V | 400 690 | |
| Rated insulation voltage Ui | V | 800 | |
| Arcing distance | mm | 0 | |
| Rated impulse withstanding voltage Uimp | V | 8000 | |
| Rated operation short circuit breaking capacity Ics(O-t-CO-t-CO) | 400V | ka | 50 |
| 690V | ka | 40 | |
| Rated limiting short circuit breaking capacity Icu(O-t-CO) | 400V | ka | 80 |
| 690V | ka | 50 | |
| Rated short circuit closing capacity Icm | 400V | ka | 176 |
| 690V | ka | 105 | |
| Rated short time withstanding current Icw(O-t-CO,AC400V 0.4s) | 400V | ka | 50 |
| Operation life | per hour | Times | 20 |
| Electrical | Times | 1000 | |
| Mechanical | Times | 10000 | |
| Full breaking time | ms | 20~30 | |
| Full closing time | ms | 55~70 | |
| Power consumption | 3P | W | 360 |
| 4P | W | 450 | |
| Resistance of each pole | Fixed type | μ Ω | 11 |
| Draw out type | μ Ω | 20 | |
| Dimensions(L*W*H) | 3P fixed type | mm | 362*323*402 |
| 3P draw out type | mm | 375*461*452 | |
| 4P fixed type | mm | 457*323*402 | |
| 4P draw out type | mm | 470*461*452 | |
| Approximate weight | 3P fixed type | kg | 41 |
| 3P draw out type | kg | 71 | |
| 4P fixed type | kg | 51.5 | |
| 4P draw out type | kg | 86 |
FAQ:
Q 1.How about your experience?
A. We have our own professional factory and R&D department & more than 20 years. My company has developed and manufactured step by step .The chief products include: MCB,MCCB,ELCB,RCCB,RCD,RCBO, intelligent universal circuit breakers, control and protection switches, ATS ,Voltage Regulator, Ac Contactor etc.
Q 2. How's the delivery time ?
A. It usually will spend about 15-25 days to product.
Q 3. What's the kind of material of circuit breaker?
A. Red Copper with silver point
Q 4.Are there any warranty for your item ?
A. We provide one year of warranty for the products. Please feel assured.
Q 5. What about the standard of package?
A. Exporting Wooden Case as per international standard.
Q 6. Which market have you already sell?
A. We have already sell in Europe, South America, Asia, Africa, Middle East etc.
Q7. Do you provide sample ? is it free or extra ?
A. Yes, we could make the sample and it need you pay the cost of freight and samples charge .
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