2017 Latest Design Miniature circuit breaker-FTB3LE to Luxemburg Manufacturers
Overview:
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Product illustration:
Technical Data
| Model | FTB3LE Residual current circuit-breaker | ||||||
| Number of poles | IP+N,2P,3P,3P+N,4P | ||||||
| Rated frequency: | AC 50/60Hz | ||||||
| Rated voltage (V) AC | 230/400 | ||||||
| Rated current (A) | CD | 6, 10, 16, 20, 25, 32, 40, 50, 636,10,16,20,25,32,40 | |||||
|
Rated residual operating current(mA) |
AC A | 3030,50 | |||||
|
Rated residual non-operating current(mA) |
ACA | 1515,25 | |||||
| Residual current breaking time | 30mA≦0.1s 250mA≦0.04s | ||||||
| Rated short-circuit breaking capacity (KA) | 40～63A6～32A | 1012 | |||||
| Rated residual current breaking capacity(KA) | 4.5 | ||||||
| Mechanical & electrical life: | 20,000 operations | ||||||
| Installation | |||||||
| Protection rating | IP20 | ||||||
| Installation | On DIN rail 35mm according to JB6525 | ||||||
| Connection capacity: | Cross-section of conductors up to 25mm², Cross-section of busbar from 0.8-2mm²,reversibility of connections | ||||||
| Tightening torque | 2 Nm | ||||||
| Ambient temperature (°C) | -5°C ~ +40°C | ||||||
| Altitude (m) | ≤2000m | ||||||
| Relative air humidity | no more than 95% | ||||||
| Pollution degree | Ⅱ | ||||||
| Installation condition | Used in place without obvious shock and vibration | ||||||
| Weight (g) | 80 | 490 | 610 | 710 | 820 | ||
Exterior and dimensions
| Number of poles | width(mm) | Modules |
| 1 / 2 | 54 | 3 |
| 2 / 2 | 72 | 4 |
| 3 / 3 | 100 | 5.5 |
| 3 / 4 | 112.5 | 6.25 |
| 4 / 4 | 130.5 | 7.25 |
I demonstrate how the GMP 050 to 100 model furnace heat exchanger failure diagnosis is done. These furnaces were installed in the early 90s and virtually all of their heat exchangers failed. Most were replaced within the 15 year warranty period. However, some of them were replaced twice. I recommend if you come on to one of these to replace the furnace. There is a possibility of CO poisoning from this appliance. For a view of the failed heat exchanger go here: http://youtu.be/84JDkuYNeBs
This video is part of the heating and cooling series of training videos made to accompany my websites: www.graycoolingman.com and www.grayfurnaceman.com to pass on what I have learned in many years of service and repair. If you have suggestions or comments they are welcome.
If you are a homeowner looking to repair your own appliance, understand that the voltages can be lethal, the fuels are highly flammable and high pressures are used. Know your limits.
