NKB1 Control and Protection Switchgear

Product category:: Control and Protective Switching Device (CPS)
Product code:: P-436
Model:: NKB1

Function & Use (Application Scenarios)

Motor control and protection electrical appliances, control and protection switch electrical appliances products are mainly applicable to the NKB1 series control and protection switch (CPS) (hereinafter referred to as "switch"), which are mainly used for AC 50Hz (60Hz), rated working voltage up to 400V, rated working current 1A to 125

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Product highlights

Reliable overload protection
Short-circuit protection capability
Strong breaking capacity
Control response is stable
Engineering Application Compatibility

Model

NKB1

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Main Product Parameters

CategoryRelay Protection and Automation DevicesSecondary CategoryControl and Protection Switchgear

ParametersCurrent frame: 63/125; control power supply voltage: 230V, 400V; rated operating current: 1/3/6/12/16/25/32/45/63/80/100/125AAdvantages/Core Features01 Small product volume; 02 High operational reliability; 03 High short-circuit breaking capacity; 04 Short arc distance, with multiple circuit protection functions

Product details

Function and Application

The NKB1 series control and protection switchgear (CPS) (hereinafter referred to as "switch") is mainly used in circuits with AC 50Hz (60Hz), rated working voltage up to 400V, rated working current from 1A to 125A, controller setting current from 0.4A to 125A, and motor power from 0.12kW to 55kW. It can connect, carry, and break the current under normal conditions (including the specified overload conditions), and also connect, carry for a certain period, and break the current under specified abnormal conditions (such as short circuit).

Details

Parameters:
Current frame: 63/125
Control power supply voltage: 230V, 400V
Rated working current: 1/3/6/12/16/25/32/45/63/80/100/125A

Advantages/Core Functions:
01 Small product size
02 High operational reliability
03 High short-circuit breaking capacity
04 Short arc distance, with multiple circuit protection functions

Detailed Parameters

Parameter Category	Parameter Item	Parameter Value
5 Main Technical Parameters	Model	NKB1-45, NKB1-125
	Rated Working Voltage Ue(V)	400
	Rated Working Frequency (Hz)	50
	Rated Insulation Voltage Ui(V)	690
	Rated Impulse Withstand Voltage Uimp(kV)	4, 6
	Agreed Heating Current Ith(A)	16, 3, 6, 12, 16, 25, 32, 45, 63, 80, 125
	Rated Working Current Ie(A)	1, 3, 6, 12, 16, 25, 32, 45, 63, 80, 100, 125
	Usage Category	AC-43, AC-44
	Poles	3P
Table 2 Controller Setting Current
	Frame Rating	45, 125
	Rated Working Current Ie(A)	1, 3, 6, 12, 16, 25, 32, 45, 63, 80, 100, 125
	Controller Rated Current Iet(A)	1, 3, 6, 12, 16, 25, 32, 45, 63, 80, 100, 125
	Overload Setting Current Ir1 Range (A)	0.4-1, 1.2-3, 2.4-6, 2.2-5.5, 4.8-12, 6.4-16, 10-25, 5.0-12, 12.8-32, 18-45, 25-63, 32-80, 40-100, 50-125
	Controllable Motor Power Pe(kW)/400V)	0.12-0.3, 0.37-1.2, 1.0-2.7, 2.2-5.5, 3.0-7.5, 5.0-12, 6.5-15, 9.0-22, 12-30, 15-37, 22-45, 27-55
Table 3 Rated Control Power Supply Voltage Us
	M: AC230V	CPS Reliable Closure (85%-110%)Us
	Q: AC400V	CPS Open or Release (20%-75%)Us
Table 4 Electrical Life
	Model	NKB1-45, NKB1-125
	Electrical Life (ten thousand times)	AC-43: 120, AC-44: 3
	Mechanical Life (ten thousand times)	1000, 500
	Working System Level (Intermittent Duty Cycle)	300 Load Factor 40%, 120 Load Factor 25%

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