NXB-125 Plastic Enclosed Circuit Breaker

Product category:: Miniature circuit breaker (air switch)
Product code:: P-303
Model:

Function & Use (Application Scenarios)

Final electrical equipment, miniature circuit breaker products are mainly applicable to 1 in compliance with the standard GB/T14048.2, IEC60947-2, suitable for engineering support, installation and maintenance, and long-term stable operation, meeting the on-site application needs of electrical systems.

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Product highlights

Engineering Application Compatibility
Stable and reliable operation
Easy system integration

Model

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Main Product Parameters

CategorySwitchgearSecondary CategoryMiniature Circuit Breaker

Product details

Function and Application

1. Complies with standard GB/T 14048.2, IEC 60947-2

Detailed Parameters

Parameter Category	Parameter Item	Parameter Value
Rated Current (In)		63A, 80A, 100A, 125A.
Rated Working Voltage (Ue)		230V~(1P), 400V~(2P, 3P, 4P).
Rated Insulation Voltage (Ui)		500V.
Frequency		50Hz.
Instantaneous Trip Characteristics	li=8In (Type C)
	li=12In (Type D)
Pole Number		1P, 2P, 3P, 4P.
Mechanical Life		20000 times.
Electrical Life	<=100A	6000 times
	>100A	4000 times
Rated Ultimate Short-Circuit Breaking Capacity (Icu)		10kA.
Rated Service Short-Circuit Breaking Capacity (Ics)		7.5kA.
Rated Impulse Withstand Voltage (Uimp)		4kV.
The recommended values for product-related application scenarios are shown in Table 1, for reference only. The specific corrected values should be comprehensively evaluated according to the actual working conditions of the user.
Derating Coefficient for Parallel Installation of Multiple Products (Recommended Value)	<=3 units	(0.9-0.95)In
	4-6 units	(0.80-0.86)In
	7-9 units	(0.78-0.76)In
	>9 units	0.76In
Rated Current Derating Coefficient for High Altitude Usage (Recommended Value)	<=2000m	In
	3000m	0.96In
	4000m	0.94In
	5000m	0.92In

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