FTB-ZK
Overview:
FTB – ZK Distributed Type Circuit Breaker for PV Grid-tied System. A miniature circuit breaker with short-circuit and overload protection as the main switch is equipped with an ultra-small intelligent electro-operation module with a self-resetting function to automatically control the opening or closing of the circuit breaker through the detection of the voltage signal, and also has a remote passive signal control function.
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| Model & Spec | FTB-ZK | |||||||
| Technical parameters | ||||||||
| Standards | GB/T10963.1 | JB/T12762-2015 | ||||||
| Certifications | CCC | |||||||
| Pole number | 1P+N, 2P, 3P+N, 4P | |||||||
| Rated current(A) | C Type | 6, 10, 16, 20, 25, 32, 40, 50, 63 | ||||||
| D Type | 6, 10, 16, 20, 25, 32, 40 | |||||||
| Rated frequency(Hz) | 50 | |||||||
| Remote control signal | Passive pulse | |||||||
| Overvoltage protection value(V) | AC275±5 | |||||||
| Overvoltage restoring value(V) | AC250 | |||||||
| Undervoltage protection value(V) | AC160±5 | |||||||
| Undervoltage restoring value(V) | AC195 | |||||||
| Undervoltage protection delay(s) | 0.6~5 | |||||||
| Overvoltage protection delay(s) | 3 (275V) | |||||||
| Restoring time | 25 | |||||||
| Indicator | Overvoltage protection: red-always on; Undervoltage protection: red-flicker; Running: green-always on; Closing delay: green-flicker | |||||||
| Running/maintenance | Running mode | Switch off automatically once detects over/undervoltage, and switch on automatically at voltage recovery, also can be remotely controlled | ||||||
| Maintenance mode | The switch is opening and locked, and unable to switch on by manual | |||||||
| Remote control | Remote closing: 1-3 trigger; Remote opening: 2-3 trigger; it is in opening locked state after opening | |||||||
| Electrical characteristics | ||||||||
| Rated operating voltage Ue(V) | AC230(2P) AC400(4P) | |||||||
| Rated insulation voltage Ui(V) | AC400 | |||||||
| Rated short-circuit breaking capacity lcn(kA) | 6.5 (FTB2) 10 (FTB3 40A~63A) 12 (FTB3 6A~32A) | |||||||
| Rated impulse withstand voltage Uimp(kV) | 6 | |||||||
| Dielectric voltage, power frequency, 1min(kV) | 2 (need to switch off the control source) | |||||||
| Isolation function | Yes | |||||||
| Class of pollution | 2 | |||||||
| Use cat. (overvoltage category) | ll | |||||||
| Tripping type and charateristics | C-type curve (5ln~10ln) D-type curve (10ln~20ln) | |||||||
| Mechanical charateristics | ||||||||
| Contact status indicator | Green: open Red: close | |||||||
| Mechanical life (times) | 10000/6000 | |||||||
| IP rate | IP40 (installed inside the distribution box) | |||||||
| Mechanical shock resistance (GB/14048.1) | 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 | |||||||
| 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 | Upper inlet | |||||||
| Outline dim. (mm) (L*W*H) |
1P+N/2P: 80*54*75.7 3P+N/4P: 80*90*75.7 | |||||||
