Breaking Capacity: | Low Voltage Circuit Breakers |
---|---|
Operation: | Manual Type |
Speed: | Normal Type Circuit Breaker |
Samples: |
---|
Customization: |
---|
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
---|
Payment Method: |
![]() ![]() ![]() ![]() ![]() ![]() ![]() |
---|---|
Initial Payment Full Payment |
Currency: | US$ |
---|
Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
---|
Suppliers with verified business licenses
Different shape Miniature Ciruit Breaker 6KA 1P 2P 3P 4P MCB for short-circuit and over-load protection with small tranparent cover marks and two plastic clips to fixed
General
STM15-63 high breaking miniature circuit breaker has the features of structure advanced, performance reliable, breaking capacity high, appearance elegant and its shell and parts are made of material with impact resistance, strong flame-retardant feature. It is suitable to power system of 50/60 frequency, Ue 400V and below, Ui 63A and below. And it is mainly applied at office building, residence, lighting, power distribution and overload and short circuit protection of equipment. Normally, it also can be used as the not frequent transfer of power system, which conforms to the standard IEC60898.1 and GB10963.1Specifications
Model | STM15-63 |
Pole | 1P,1P+N,2P,3P,4P |
Rated Current(In) | 1,2,4,6,10,16,20,25,32,40,50,63A |
Rated Voltage(Un) | AC 230(240)/400(415)V |
Rated Frequency | 50/60HZ |
Breaking Capacity | 3KA,4.5KA, 6KA |
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 |
Prepresents the number of poles, N represents the zero line, 2P represents that both poles of the miniature circuit breaker have thermal and magnetic protection functions, and the width is 36mm; and 1P+N, only the hot wire thermal magnetic protection function, the N pole has no thermal magnetic protection function, but it will be disconnected from the live wire at the same time, the width is 18mm. Therefore, 1P+N is more economical than 2P, and it also has higher safety. It is suitable for applications with small current such as lighting circuits.
Technical Parameters
Related Current(A) | Pole Number | Related Working Voltage(V) | Breaking Capacity | Tripping Curve | |
1, 2, 3, 4, 5, 6, 10, 16, 20, 25, 32, 40, 50, 63 |
1, 2 | 230/240 | 3/4.5/6(KA) | B, C, D | |
1, 2 | 230/400, 240/415 | ||||
2, 3, 4 | 400/415 |
Current Release Character Diagram | |||||
Test current (A) |
Rated current (A) |
Requested time | Result | Start station | Remark |
1.13In | All | t>=1h | Don't trip | Cool | |
1.45In | All | t<1h | trip | Heat | Current ascends the requested value stably in 5s |
2.55In | In<=32A | 1s<t<60s | trip | Cool | Auxiliary switch closed, power is on |
2.55In | In>32A | 1s<t<120s | trip | Cool | Auxiliary switch closed, power is on |
5In(Cmode) | All | t>=0.1s | Don't trip | Cool | Auxiliary switch closed, power is on |
10In(Cmode) | All | t<0.1s | trip | Cool | Auxiliary switch closed, power is on |
10(Dmode) | All | t>=0.1s | Don't trip | Cool | Auxiliary switch closed, power is on |
14In(Dmode) | All | t<0.1s | trip | Cool | Auxiliary switch closed, power is on |
·Remark
1. Mechanical life: 20,000 times(off-on)
2. Heat resistance: category 2 (temperature 55°C, relative humidity 95%)
3. Wiring is terminal with clamp, cable dia.: 25mm2
FAQ
Q1. How can you guarantee the quality?
A. Always a pre-production sample before mass production;
Always final inspection before shipment.
Q2. How about the price?
A. Our company is manufacture and have a competitive price.
Q3. When is the delivery time?
A. It usually takes 25 days for production.
Q4. Tell me the standard of package?
A. Export standard package or special package according to customer requirement.
Q5. Can I order samples?
A. Yes, we accept sample orders for you to test and check the quality. And we have stock for fast shipment.
Q6. What's the payment term?
A. We accept TT,30% deposit and 70% balance agaisnt copy of BL.
Q7. Would you accept to use our logo?
A. If you have good quantity,it absolute no problem to do OEM.
Suppliers with verified business licenses