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The YCB9-80 series miniaturecircuit breakerare suitable forovercurrent protection ofbuilding line facilities and similar purposes in AC50/60Hz,ratedvoltage 230V/400M,rated current up to 80Acircuits.They have isolation,oveload,andshort circuit protectionfunctions,and can also be used forinfrequentoperationandswitching oflines undernormal dircumstances.Gircuit breakersaresuitable for various places suchas industrycommerce,high-rise buildings,and residential buildings.
Standard:IEC/EN 60898-1
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1. Overload protection
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln
Type | Test current | Tripping time | Expected result | Type | Test current | Tripping time | Expected result | |
B,C,D | 1.13In | t≤1h(In≤63A) | Not tripping | B | 3In | t≤0.1s | Not tripping | |
1.13In | t≤2h(In>63A) | C | 5In | t≤0.1s | ||||
B,C,D | 1.45In | t<1h(In≤63A) | Tripping | D | 10In | t≤0.1s | ||
1.45In | t<2h(In>63A) | B | 5In | t<0.1s | Tripping | |||
B,C,D | 2.55In | 1s<t<60s(In≤32A) | Tripping | C | 10In | t<0.1s | ||
2.55In | 1s<t<120s(In>32A) | D | 20In | t<0.1s |
Type | Standard | IEC/EN 60898-1 | |
Electrical features |
Rated current In | A | 1,2,4,6,10,16,20,25,32,40,50,63,80 |
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 | 600,010,000 | |
Rated impulse withstand voltage(1.2/50)Uimp | V | 6000 | |
Dielectric test voltage at ind.Freq.for 1min | kV | 2 | |
Pollution degree | 2 | ||
Thermo-mag netic release characteristic | B,C,D | ||
Mechanical features |
Electrical life | t | 8000 |
Mechanical life | t | 20000 | |
Protection degree | IP20 | ||
Reference temperature for setting of thermal element |
℃ | 30 | |
Ambient temperature (with daily average≤35℃) |
℃ | -5~+40 | |
Storage temperature | ℃ | -25~+70 | |
Installation | Terminal connection type | Cable/Pin-type busbar/U-type bar | |
Terminal size top/bottom for cable | mm2 | 25 | |
AWG | 18-3 | ||
Terminal size top/bottom for busbar | mm2 | 25 | |
AWG | 18-3 | ||
Tightening torque | N*m | 2 | |
In-Ibs | 18 | ||
Mounting | On DIN rail EN 60715(35mm)by means of fast clip device | ||
Connection | From top and bottom |