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| Categories | MCCB Circuit Breaker |
|---|---|
| Brand Name: | SONTUNE |
| Model Number: | STN2 |
| Certification: | CE |
| Place of Origin: | China |
| MOQ: | 1-50pcs |
| Price: | Negotiable |
| Supply Ability: | 5000pcs/day |
| Standard: | IEC 60947-2,GB14048.2 |
| Coil voltage: | AC400( 380 ),AC690( 660 ),DC500 |
| In: | 63,80,100,125,160,200,250,350A,400,500,630,800,1000,1200,1250,1600A |
| Type: | MCCB |
| Install: | Fixed |
| Color: | Gray |
Stn2 3p Moulded Case Circuit Breaker
Ambient air temperature
The ambient air temperature is about +40 ºC; the ambient air
temperature is below -5ºC; the average value of ambient air
temperature 24h is not more than +35ºC.
Elevation: installation elevation of not more than 2000m.
Atmospheric condition:
Relative humidity of the atmosphere in the surrounding air
temperature of +40ºC is less than 50%; the relative humidity at the
lower temperature can be high; most of the wet month average
maximum relative humidity of 90%, the monthly average minimum
temperature of +25ºC and considering the temperature due to changes
in product surface.
Pollution grade: grade 3.
Rated current of release(A) | Thermodynamic release (ambient temp +40°C) | operational current of magnetic ralease(A) | |||
1.05In(cold state) in operative time(h) | 1.30(heat state) inoperative time(h) | ||||
| In≤63 | ≥1 | <1 | 10In±20% | ||
| 63 | ≥2 | <2 | 10In±20% | ||
| 100 | ≥3 | <3 | 5-10In±20% | ||
Rated current of release(A) | Thermodynamic release (ambient temp +40°C) | operational current of magnetic ralease(A) | |||
1.0 In(cold state) operative time(h) | 1.20(heat state) operative time(h) | 1.50(heat state) operative time(h) | 1.01(heat state) operative time(h) | ||
| 12.5 | ≥2 | <2 | ≤4min | 2s | 12In±20% |
Note:
1. The N-pole breaker has no protection which closing and opening with the other three poles. 2. The type of thermal magnetic for NS-400/630 has no four poles.
1. Overload protection with adjustable threshold, as defined by
IEC60947-4 (2) tripping class 10A,10 and 20
2. Short-circuit protection with adjustable threshold (6...13xIr)
3. Phase failure protection (built-in electronic release: operates
unbalanced single-phase currentat 40% and more than )(tripping time
delay 4s±10%),as defined by IEC60947-4.1
4. Load indication : Flashing more than Ir setting threshold
5. Fault indication
LEDs indicates the type of fault that caused tripping
Overload (LT protection) or abnormal component temperature
(>Ir);
Short-circuit (ST or instantaneous protection)( >Im);
Phase failure (right LED);
Microprocessor malfunction ( (>Ir) ( >Im) and phase failure
LEDs all go on )
Battery powered. Spare battery are supplied in an adapter box. When
a fault occurs ,the LEDindicating the type of fault ,lights for
about 10 minutes . The information is however stored inmemory . The
LED can be illuminated by pressing the test pushbutton. The LED
automatically goes off and the memory is cleared when the circuit
breaker is reset .
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