The SA-C63 is a DC circuit breaker dedicated to multi string photovoltaic installations.
This circuit breaker is designed to protect the cables located between each string of photovoltaic modules and the photovoltaic inverter against overloads and short circuits (see application diagram).
Combined with a switch , the SA-C63 will be installed in a string PV protection enclosure at the end of each string of photovoltaic modules.
It can be locked (by a padlocking device) in OFF position as a safety measure for removal of the PV inverter.
Since a fault current can flow in the reverse direction to the operating current, the SA-C63 can detect and protect against any bidirectional current.
To ensure the safety of the installation, it is necessary, depending on the various types of application, to combine the SA-C63 with:a residual current device at the AC end a fault passage detector (insulation monitoring device) at the DC end an earth protection circuit breaker at the DC end In all cases, fast action on site will be required to clear the fault (protection not ensured in the event of a double fault).
SA-C63 is not polarity sensitive: (+) and (-) wires can inversed without any risk.
The SA-C63 is: delivered with three inter-pole barrier to provide increased isolation distance between two adjacent connectors.
Technical data
Position contact indication - suitability for isolation according to IEC/EN 60947-2 standard.
The presence of the green strip guarantees physical opening of the contacts and allows operations to be performed on the downstream circuit in complete safety.
 Increased product service life thanks to fast closing independent of the speed of actuation of the toggle.
Pre-wired product: Input / Output on the same side .
Type | SA-63 | ||||
Standard | IEC60947-2/GB14048.2 | ||||
Poles in series | 1P | 2P | 3P | 4P | |
Rated voltage | 300VDC | 600VDC | 900VDC | 1000VDC | |
Maximum current of shell | 63A | ||||
Rated current | 3A,4A,6A,10A,13A,16A,20A,25A,32A,40A,50A,63A | ||||
Rated insulation voltage | 1200VDC | ||||
Rated impulse voltage | 4KV | ||||
Breaking type | H | ||||
Breaking capacity | 6KA | ||||
Run off power | 100% | ||||
Curve type | B | ||||
trip type | Thermal magnetic type | ||||
service life | |||||
Mechanical life | Actual mean value | 20000 | |||
Standard average | 8500 | ||||
Electrical life | Actual mean value | 4000 | |||
Standard average | 1500 | ||||
Installation and environment | |||||
Protection level | Side IP40, terminal Port IP20 | ||||
Wiring capacity | 2.5-25mm2 | ||||
Using ambient temperature | -25ºC~+70ºC | ||||
Storage environment temperature | -40ºC~+85ºC | ||||
Heat resistance | 2 category, humidity 55ºC, relative humidity 95% | ||||
Anti vibration | 2.6 IEC60068 | ||||
Anti impact parameter | 2.27 IEC60068 |


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A. For the small capacity, it use carton, but for big capacity, we should use honeycomb carton and pallet or wooden case for protection.
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The Strain Clamp is primarily used to fix the conductor, ground wire terminals on tension towers of overhead lines, distribution lines and distribution equipments in substations, power plants. It also can fix the guy wire terminals on poles. Moreover, it bears all the tension of conductors, ground wires and lightning conductors. According to its configuration and installation means, the strain clamp can be divided into compression type, bolt type and wedge type. Generally, the compression type includes hydraulic compression type and explosive compression type. Generally, malleable cast iron, steel, and aluminum alloy are used as its materials.
All the ferrous metal should be hot-dip galvanized.
Suspension Clamp,Suspension Clamp With Shackle U,Steel Suspension Clamp,Aluminum Alloy Suspension Clamp
Jiangsu Chuandu Electrical Technology Co.,Ltd. , http://www.cdepf.com