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Product Description
SONTUOEC AC/DC Miniature Circuit Breaker B,C, D Curve 1P,2P,3P,4P 63A 230/400V Breaking Capacity 6ka Overload current Protector MCB with busbar connection wire:
The STM3-63 B,C,D curve 1amp up to 63Amp mcb low voltage types of miniature electrical circuit breaker is mainly used in
| 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 | ||||
| Remark: | |||||
| 1. Type B is generally used for lighting, C type for general household appliances (market mainstream), D type motor protection. | |||||
| 2. Electrical life: standard 6,000 times, we can reach 10,000 times. Mechanical life: standard 20,000 times (off-on), but working without electricity can be achieved 100,000 times. | |||||
| 3. Heat resistance: category 2 (temperature 55°C, relative humidity 95%). | |||||
| 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 |
The above is Din Rail instation type MCB series with plastic box :
Pro
Auxiliary Parts for MCB series: 
Automatic Voltage Protector:
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The following is: Plug in type instation series MCB series:
1.Our products have the guarantee period of 18months, that is a high quality and reliability;
2. Our products have an excellent ratio between price and quality, you can possess them by competitive price and high quality
3. The fast and flexible production form aim at the customer require;
4. The deliveries exactly in accordance with customer orders;
5. The fast transportation;
6. Wide in variety, entire in specification, has high short-circuit breaking capacity, can reach 6KA,
7.It is aesthetic in appearance to design and convenient to install.
8.We have more than 20years experience for professional in producing circuit breaker.
Our Services:
- Competitive price
- Continuance Service and support
- Good-after service
- Quality Reliability and Long Product Life.
- More than 20years experience.
- Delivery time: within 35days for normal orders.
- Warranty time: 18months.
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