Manufacturer for Miniature circuit breaker-FTM8 to Costa Rica Importers


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

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Sticking to the belief of "Creating products of high quality and making friends with people from all over the world", we always put the interest of customers in the first place for Manufacturer for Miniature circuit breaker-FTM8 to Costa Rica Importers, We will wholeheartedly welcome all clients in the industry both at home and abroad to cooperate hand in hand, and create a bright future together.


Technical Data

FTM8 Miniature circuit-breaker
Number of poles
IP 2P 3P 4P
Rated frequency:
AC 50/60Hz
Rated voltage (V) AC
 Rated current (A)
6, 10, 16, 20, 25, 32, 40, 50, 63
6, 10, 16, 20, 25, 32, 40, 50, 63
Rated breaking capacity(KA)
4.5(6~40A),  6(50~63A)
Mechanical & electrical life:
10,000 operations
protection rating
On DIN rail 35mm according to JB6525
Connection capacity:
Cross-section of conductors up to 25mm2
Tightening torque
2 Nm
Ambient temperature (C)
-5C ~ +40C
Altitude (m)
Relative air humidity
no more than 95%
pollution degree
installation condition
Used in place without obvious shock and vibration
Weight (g)

Tripping Characteristic


Exterior And Dimensions


Number of poles
2P    3P     4P


Please refer to below table for the connection of wires with a cross section area

Rated current In(A)

Nominal cross section area of copper wire(mm²)















About Solar Photovoltaic Technology

ABC Solar would like to take a moment to give a history of photovoltaic technology. Your system is the adoption of Einstein’s vision. Yes, Albert Einstein won the Nobel Prize in Physics for his explanation of how light (photons) travel 93 million miles to get in a fist-fight with the Silicon atom and how the photon “knocks-out” the silica electron. The knocked out silica electron is harnessed to make electricity.

Solar Panels start in the ground as pure silica that can be mined. With one method the silica is treated with various chemicals to became ready to be melted. The melting process will get the silica into a molten state and head towards 1600 degrees Celsius. At this point a crystal is drawn thru the mixture and pulls up. This process starts the crystallization process of the raw silica into the usable solar wafer. The wafer is sized to typically 60mm and it is on its way to becoming a solar cell.

Simply put a doping material is used to make one side of the silicon wafer positive and the other
negative. A hair thin wire mesh is attached and leads are placed to allow in series connection of the cells. Now considered a solar cell, each just shy of ½ a volt DC. This magical number happens no matter how big the solar cell is. This phenomenon is not yet explainable by this writer, but I love thinking about it.

The ½ volt DC of the solar cell is the building block of functioning solar panels. A 72 solar cell
configuration is one of the most popular of the world’s solar panel manufacturers. 1/2 volt DC x 72 = 36 volts DC. This is the typical voltage range for a 72 solar cell solar panel.

The 72 solar cells are connected to each other in series electrically. Lead free solder and silver wire are used by our preferred manufacturers. The sheet of solar cells are encapsulated to back sheets and framed to safety glass with long-lasting anodized aluminum. A power connection device called a Junction Box is surgically attached to the back of the solar panel and glued into place. Two wires then extend from the Junction Box as positive and negative with quick connectors for ease of installation.

Inverters: The SMA Sunny Central 250KW Inverter shown here provides 250,000 Watts AC Maximum
Output Power and improved CEC efficiency of up to 96%. The inverter does the magic of changing the solar DC generated electricity to AC grid-capable power. The typical residential inverter will output at 240 volts open-circuit. This is routed in two 120 volt circuits that are then configured to safety disconnect switches and then backfeed to the main panel in 2x 20 amp breakers.

Inverters input characteristics are key to understanding good and safe system design. The minimum and maximum DC input voltage and the other is the max amperage of each solar string. For the SB 7000 the input voltage range is 150 to 600 volts DC. The max amperage per string input is 18 at 240 volts.

The Solarworld 275 Watt mono solar panel has an open-circuit voltage of 39.4. If we just divide 600 / 39.4 we would get 15 solar panels in one string. But! We have to take into consideration the local lowest annual temperature. The lower the temperature the higher the voltage. In the case of Los Angeles weather, the calculation is 39.4+((39.4 * ((-7c–25c)* (-.3/100))) = 43.18 VDC per panel. Now divide 600 by 43.18 and you get 13 panel max per string. A similar calculation is done on the highest temperature
calculation. The higher the temperature the lower the voltage. So this high temp calculation is
important for smaller string sizes to make sure you have the minimum 150 volts dc for starting the
inverter. Solar electric systems perform better in cooler climates compared to the desert. The desert does have the advantage of many more days of full sun. Always a trade-off.

Thank you.

Visit today.

This system features 24 Suniva 285 Watt black on black solar panels connected to a Sunnyboy SB6000US-TL Inverter. The system was installed as the roof as brand new. Once our mounting feet were installed the project roofer finished the roof. The home close to being finished when we installed the 24 Suniva panels.

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