Zhejiang wanlai Intelligent electric co., ltd.
JC3BE Miniature Circuit Breaker (MCB) 15KA
Protection of circuits against short-circuit currents;
Protection of circuits against overload currents;
Breaking capacity up to 15kA
With contact indicator
Can be made from 1A to 80A
1 Pole, 2 Pole, 3 Pole , 4 Pole are available
B , C or D curve
Comply with IEC 60947-2
Features
Protection of circuits against short-circuit currents;
Protection of circuits against overload currents;
Breaking capacity up to 15kA
With contact indicator
Can be made from 1A to 80A
1 Pole, 2 Pole, 3 Pole , 4 Pole are available
B , C or D curve
Comply with IEC 60947-2
Application
JC3BE circuit-breakers are used in domestic installation, as well as in commercial and industry electrical distribution systems.
Selection
Technical data of the network at the point considered: the earthing systems (TNS, TNC),short-circuit current at the circuit-breaker installation point,which must always be less than the breaking capacity of this device, network normal voltage.
Tripping curves:
B curve (3-5ln)---protection for people and big length cables in TN and IT systems.
C curve (5-10ln)---protection for resistive and inductive loads with low inrush current
D curve(10-14ln)---protection for circuits which supply loads with high inrush current at the circuit.closing (LV/LV transformers, breakdown lamps)(Defaulted) D curve could be also made in 10-20ln
Technical Data
| Product code | JC3BE | ||
| Standard | IEC60898-1 | IEC60947-2 | |
| Electrical features | Rated current In(A) | 1, 2, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63, 80 | |
| Poles | 1P, 1P+N, 2P, 3P, 3P+N, 4P | 1P, 2P, 3P, 4P | |
| Rated voltage Ue(A) | 230/400~ 240/415~ | ||
| Insulation voltage Ui(A) | 500 | ||
| Rated frequency | 50/60Hz | ||
| Rated breaking capacity | 15KA | ||
| Energy limiting class | 3 | ||
| Rated impulse withstand voltage(1.2/50)Uimp(A) | 4000 | ||
| Dielectric test voltage at ind.Fred.for 1 min (KV) | 2 | ||
| Pollution degree | 2 | ||
| Power loss per pole | 1, 2, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63, 80 | ||
| Thermo-magnetic release characteristic | B, C, D | 8-12In, 9.6-14.4In | |
| Mechanical features | Electrical life | 4000 | |
| Mechanical life | 20000 | ||
| Contact position indicator | Yes | ||
| Protection degree | IP 20 | ||
| 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/U-type busbar/Pin-type busbar | |
| Terminal size top/bottom for cable | 25mm2/18-4AWG | ||
| Terminal size top/bottom for busbar | 10mm2/18-8AWG | ||
| Tightening torque | 2.5N*m/22In-Ibs. | ||
| Mounting | On Din rail EN 60715(35mm) | ||
| Connection | Form top and bottom | ||
| Combination with accessories | Auxiliary contact | Yes | |
| Shunt release | Yes | ||
| Under voltage release | Yes | ||
| Alarm contact | Yes | ||
