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Miniature Circuit Breaker
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GFB1-63 Miniature Circuit Breaker
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GFB1-63H Miniature Circuit Breaker
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GFB1-125 Plastic case circuit breaker
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GFB1-125H Plastic case circuit breaker
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GFB1-40N Plastic case circuit breaker
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GFB1-40NH Plastic case circuit breaker
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GFB1-63Z DC circuit breaker
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GFB1-63ZH DC circuit breaker
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GFB1-63ZG DC circuit breaker
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GFB1-63ZGH DC circuit breaker
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GFB1-125Z DC circuit breaker
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GFB1-125ZH DC circuit breaker
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GFB1-125ZG DC circuit breaker
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GFB1-125ZGH DC circuit breaker
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Switch Disconnector
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GFH1-125 Switch Disconnector
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GFH1-125H Switch Disconnector
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GFH1-125B Switch Disconnector
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GFH1-100 Switch Disconnector
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GFH1-100D Switch Disconnector
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GFH1-40X Switch Disconnector
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GFH1-80X Switch Disconnector
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GFH1-125X Switch Disconnector
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GFH1-250 Switch Disconnector
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GFH1-125Z Changeover Switch
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GFH1-80F Switch Disconnector
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GFH1-M324P Switch Disconnector
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Electromagnetic Residual Current Operated Circuit Breaker
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Electronic Residual Current Circuit Breaker
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AFDD RCBO Arc Fault Protection Circuit Breaker
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Household AC Contactor
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Impulse Relays
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Surge Protective Device
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Distribution Box
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GFB1-63Z DC circuit breaker
GFB1-63Z DC circuit breaker is used in lines with rated voltage up to 1000V and rated current up to 63A for overload and short circuit protection, and can also be used as infrequent operation conversion of the line。
● Standard: IEC/EN60947-2
●Tripping Mode:Thermal-Magnetic Tripping
● Rated current: 1A~63A
● Rated voltage: 250/500V/750V/1000V
● Number of poles: 1P,2P,3P,4P
● Rated short-circuit breaking capacity: 6kA
● Ambient air temperature: -35℃ to +70℃, Max. 95% humidity
● Connection: From top and bottom
● Certificates: CB, CE, UKCA,SEMKO
Product Description
●Model and Meaning ●Introduction
GFB1-63Z DC Circuit breaker is used in lines with rated voltage up to 1000V and rated current up to 63A for overload and short circuit protection, and can also be used as infrequent operation conversion of the line。
Circuit breakers are suitable for DC system applications such as communication and photovoltaic systems。
Product complies with standard: IEC/EN60947-2。
● Product features
● Built-in shorting connection to improve installation efficiency and reduce the risk of wiring errors;
● Guide rail installation, installation clip super travel, after the installation of the busbar, a single product can be quickly replaced;
● Touch head position indicator window, working status at a glance;
● DC power supply has polarity application, voltage up to DC1000V, to meet PV module load and photovoltaic line system applications。
●Technical Parameters
Standard | IEC/EN60947-2 |
Protection | Overcurrent and short circuit |
Type of trip | Thermo-magnetic |
No. of poles | 1P,2P,3P,4P |
Rated currents (In) | 1A,2A,3A,4A,5A,6A,10A,16A,20A,25A,32A,40A,50A,63A |
Rated voltage (Ue) | 1P(250VDC), 2P(500VDC), 3P(750VDC),4P(1000VDC) |
Rated insulation voltage (Ui) | 500V |
Rated breaking capacity | 6kA |
Rated impulse withstand voltage (1.2/50) Uimp | 4kV |
Dielectric test voltage at Ind. Freq. for 1 min | 3kV |
Thermal release characteristic | (1.05-1.30) x In |
Magnetic release characteristic | (8-12) x In |
Electrical life | 1500 Cycles |
Mechanical life | 20000 Cycles |
Contact position indicator | Yes |
Protection degree | IP20 |
Ambient temperature | -35℃ to +70℃, Max. 95% humidity |
Terminal connection type | Cable/Pin-type busbar/Fork-type busbar |
Max. terminal size for cable | 25mm² |
Max. tightening torque | 2.5N·m |
Installation | Mounting on 35mm DIN rail |
Connection | According to the wiring diagram |
●Product Types Choosing
| No. of poles | Rated Current | Rated breaking capacity | No. of poles | Rated Current | Rated breaking capacity |
| 1P | 1A | GFB1-63Z101 | 2P | 1A | GFB1-63Z201 |
| 2A | GFB1-63Z102 | 2A | GFB1-63Z202 | ||
| 3A | GFB1-63Z103 | 3A | GFB1-63Z203 | ||
| 4A | GFB1-63Z104 | 4A | GFB1-63Z204 | ||
| 5A | GFB1-63Z105 | 5A | GFB1-63Z205 | ||
| 6A | GFB1-63Z106 | 6A | GFB1-63Z206 | ||
| 10A | GFB1-63Z110 | 10A | GFB1-63Z210 | ||
| 16A | GFB1-63Z116 | 16A | GFB1-63Z216 | ||
| 20A | GFB1-63Z120 | 20A | GFB1-63Z220 | ||
| 25A | GFB1-63Z125 | 25A | GFB1-63Z225 | ||
| 32A | GFB1-63Z132 | 32A | GFB1-63Z232 | ||
| 40A | GFB1-63Z140 | 40A | GFB1-63Z240 | ||
| 50A | GFB1-63Z150 | 50A | GFB1-63Z250 | ||
| 63A | GFB1-63Z163 | 63A | GFB1-63Z263 | ||
| 3P | 1A | GFB1-63Z301 | 4P | 1A | GFB1-63Z401 |
| 2A | GFB1-63Z302 | 2A | GFB1-63Z402 | ||
| 3A | GFB1-63Z303 | 3A | GFB1-63Z403 | ||
| 4A | GFB1-63Z304 | 4A | GFB1-63Z404 | ||
| 5A | GFB1-63Z305 | 5A | GFB1-63Z405 | ||
| 6A | GFB1-63Z306 | 6A | GFB1-63Z406 | ||
| 10A | GFB1-63Z310 | 10A | GFB1-63Z410 | ||
| 16A | GFB1-63Z316 | 16A | GFB1-63Z416 | ||
| 20A | GFB1-63Z320 | 20A | GFB1-63Z420 | ||
| 25A | GFB1-63Z325 | 25A | GFB1-63Z425 | ||
| 32A | GFB1-63Z332 | 32A | GFB1-63Z432 | ||
| 40A | GFB1-63Z340 | 40A | GFB1-63Z440 | ||
| 50A | GFB1-63Z350 | 50A | GFB1-63Z450 | ||
| 63A | GFB1-63Z363 | 63A | GFB1-63Z463 |
●Connecting lead
Rated current In (A) | Nominal cross-sectional area S (mm²) of copper wire |
1、2、3、4、5、6 | 1 |
10 | 1.5 |
16、20 | 2.5 |
25 | 4 |
32 | 6 |
40、50 | 10 |
63 | 16 |
●Diagram of DC Application Wiring

●Appearance and Installation Dimensions ●Characteristic Curves

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Yueqing Good Future Electrical Co.,Ltd.
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No.136-138,Xinguang Avenue,Xinguang lndustrial Zone,Liushi Town
Yueqing City,Wenzhou City,Zhejiang Province,China
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