NC-100 MINI CIRCUIT BREAKER
GENERAL
1.1Application:
For protecting equipment against overload and short circuit
1.2General rules for choosing MCB
Technicala data of the network at the point considered:
The earthing systems(TNS,INC),Shrot-circuit current at the circuit-breaker installatino point,which must always be less than the breaking capacity of this device,Networl normal voltage.
| Standard | IEC/EN 60947-2 | ||
| Electrical features | Rated current In | A | 63,80,100,125 |
| Poles | 1P,2P,3P,4P | ||
| Rated voltage Ue | V | 230/400 | |
| Insulation voltage Ui | V | 500 | |
| Rated frequency | Hz | 50/60 | |
| Rated breaking capacity | Ka | 6~10 | |
| Rated impulse withstand voltage(1.2/50)Uimp | V | 6000 | |
| Dielectric test voltage at ind.Freq.for 1 min | Kv | 2.5 | |
| Pollution degree | 3 | ||
| Thermo-magnetic release characteristic | 8-12In | ||
| Mechanical features | Electrical life | 1500(In=63A,80A,100A) 1000(In=125A) | |
| Mechanical life | 8000(In=63A,80A,100A) 7000(In=125A) | ||
| Contact position indicator | Yes | ||
| Pollution degree | IP20 | ||
| Standard | IEC/EN 60947-2 | ||
| Reference temperature for setting of thermal element | ºC | 30 | |
| Ambient temperature | ºC | -5...+40 (Special application please refer to P29 for temperature compensation correction) | |
| Combination with sccssorles | (with daily average≤35ºC) | ||
| Storage temperation Terminal connection type | ºC | -25..+70 | |
| Cable/pin-type busbar | |||
| Terminal size top/bottom for cable | mm2 | 50 | |
| AWG | 18-1/0 | ||
| Terminal size top/bottom for busbar | mm2 | 50 | |
| AWG | 18-1/0 | ||
| Tightening torque | N*m | 3.5 | |
| In-Ibs. | 3.1 | ||
| Mounting | On DN rail EN 60715(35mm) by meas of fast clip device | ||
| Connection Auxilary contact | From top | ||
| Auxilary contact | Yes |
| Rated current In (A) | Temperature compensation coefficient under various operational temperature | ||||||||
| -10ºC | 0ºC | 10ºC | 20ºC | 30ºC | 40ºC | 50ºC | 55ºC | 60ºC | |
| 63 | 1.28 | 1.21 | 1.14 | 1.07 | 1.00 | 0.84 | 0.87 | 0.85 | 0.82 |
| 80 | 1.22 | 1.16 | 1.11 | 1.05 | 1.00 | 0.95 | 0.91 | 0.88 | 0.86 |
| 100 | 1.22 | 1.18 | 1.11 | 1.05 | 1.00 | 0.95 | 0.91 | 0.88 | 0.88 |
| 125 | 1.22 | 1.16 | 1.11 | 1.05 | 1.00 | 0.95 | 0.91 | 0.88 | 0.86 |
