Sontuoec Stn2 Series MCCB Moudlded Case Circuit Breaker 3p, 4p

• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Speed: Normal Type Circuit Breaker
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: STN2
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: MCCB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: CE
• Price: Factory Price
• Approvals: CE, ISO9001
• Warranty Time: 12months
• Delivery Time: Within 25days
• Transport Package: Inner Box/Carton
• Specification: 63 to 1250A
• Trademark: SONTUOEC, WZSTEC
• Origin: Wenzhou Zhejiang
• HS Code: 8536200000
• Production Capacity: 2000pieces/Week
• Package Size: 46.00cm * 24.00cm * 33.00cm
• Package Gross Weight: 0.640kg

Product Description

Product Description

STN2 / STN3 Series( Similar with Schneide Compact NS, NSX type) molded case circuit breaker(Electronic MCCB) is one of new type breakers which our company adopts international advanced design, manufacture technology to develop. The rated insulating voltage is 950V. Suitable for AC 50Hz (60Hz). Rated working voltage 690V or below, rated working current is 12.5A to 630A of circuit and used in distributing electric energy. Non-frequent making and breaking in the normal conditions and protecting when circuit and installation are overload, short circuit and lacking voltage. Rated shell-rack and the breaker whose current is under 400A, take protection effect when mouse cage motor's non-frequent start, breaking off working and protecting form overload, short circuit and lacking voltage. The product conforms to GB14048.2, IEC 60947-2 standards.

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.
 

Functions and characteristics

Item No.		STN2(NSX)100-250	STN2(NSX)400-630
Number of poles		3P, 4P
Control	Manual	with toggle with direct or extended rotary handle
Connections	Fixed	front connections
	Plug-in	front connections/rear connections
Electrical characteristics as per IEC60947 and EN60947-2
Rated current(A)	In	16,25,32,40,50,63,80,100,125,160,200,250	400,500,630
Rated insulation voltage(V)	Ui	800
Rated impulse withstand voltage(kV)	Uimp	8
Rated operational voltage(V)	Ue	AC 50/60Hz,690
Utilization category		A
Breaking capacity levels		F N H
Breaking capacity (kA rms) AC 50/60 Hz 380/415 V	lcu	36, 50, 70
Service breaking capacity (kA rms) AC 50/60 Hz 380/415 V	lcs	36, 50, 70
Operation performance	Mechanical	20000	10000
	Electrical	10000	5000
Protection		Chart B-1 B-2
Indication and control auxiliaries
Auxiliary switch
MX Shunt coil
MN under-voltage coil

Our Services:
 

1. Competitive price
2. Continuance Service and support
3. Good-after service
4. Quality Reliability and Long Product Life.