Direct-current High-breaking Miniature Circuit Breaker-FTBD
Overview:
Used in power supply & distribution line for overload & short circuit protection , also can be used for line non-frequent on-off operation and conversion. Specialized in communication and PV direct current (DC)system.
| Model & Spec | FTBD | |||||||
| Technical parameters | ||||||||
| Standards | GB/T14048.2/IEC60947-2 | |||||||
| Certifications | CCC | |||||||
| Pole number | 1P, 2P | |||||||
| Rated current(A) | 1, 2, 3, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63 | |||||||
| Electrical characteristics | ||||||||
| Rated operating voltage Ue(V) | DC125/250 (1P) DC250/500 (2P) | |||||||
| Rated insulation voltage Ui(V) | DC500 | |||||||
| Rated impulse withstand voltage Uimp(kV) | 4 | |||||||
| Rated short-circuit capacity lcn(kA) | 1P (1A~4A) : 6.5 kA (125V/250V) | |||||||
| 1P (6A~63A) : 20kA (125V) 10kA (250V) | ||||||||
| 2P (1A~4A) : 6.5kA (250V/500V) | ||||||||
| 2P (6A~63A) : 20kA (250V) 10kA (500V) | ||||||||
| Dielectric voltage, power frequency, 1min(kV) | 2 | |||||||
| Isolation function | Yes | |||||||
| Class of pollution | 2 | |||||||
| Use cat. (overvoltage category) | ll | |||||||
| Thermomagnetic tripping characteristics | 1.05ln/1.3ln (long delay setting current multiple) 8ln~12ln (short-circuit protection characteristics) | |||||||
| Mechanical charateristics | ||||||||
| Contact status indicator | Green: open Red: close | |||||||
| Mechanical life (times) | 20000 | |||||||
| Electerical life (times) | 10000 | |||||||
| IP rate | IP40 (installed inside the distribution box) | |||||||
| Mechanical shock resistance (GB/T2423.5)(m/s²) | 150, continuously 11ms half-wave | |||||||
| Anti-vibration (GB/T2423.10) | 5g-20 cycles, frequency 5…150…5Hz (load 0.8ln) | |||||||
| Anti-humid heat (GB/T2423.4)(℃/RH) | 28 cycles (with 55/95…100) | |||||||
| Reference ambient temperature (℃) | 30 | |||||||
| Operating ambient temperature (℃) | -5~+40 | |||||||
| Storage temperature (℃) | -40~+70 | |||||||
| Installation characteristics | ||||||||
| Terminal type | U-shaped terminal, tunnel type | |||||||
| Max. wiring capacity | Conductor connection 25 mm², busbar inlet thickness 0.8-2 mm | |||||||
| Max. ultimate torque (N.m) | 5.1 (≤25A) 5.6 (>25A) | |||||||
| Tool | Pozi drive (double cross) | |||||||
| Installation | Installation on standard DIN rail (35mm) | |||||||
| Inlet method | Pay attention to the polarity | |||||||
| Outline dim. (mm) (L*W*H) |
1P | 80*18*74.2 | ||||||
| 2P | 80*36*75.7 | |||||||
