Sontune Stn2 Series 3p 4p Low Voltage Moulded Case Circuit Breaker

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.

Product Details Company Profile

Description

Model NO.: stn2
Operation: Manual Type
Type: Circuit Breaker
Certification: CE
Transport Package: Inner Box/Carton
HS Code: 8536200000

Breaking Capacity: Low Voltage Circuit Breakers
Installation: Fixed
Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
Trademark: sontune
Origin: Wenzhou Zhejiang

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%