NC1 Series AC Contactors

Function and Usage

The NC1 series AC contactor (hereinafter referred to as the contactor) is mainly used in AC circuits with a frequency of 50Hz (or 60Hz) and a rated operating voltage up to 690V, under the AC-3, 400(380)V usage category, with a rated operating current up to 95A. It is used for remote connection and disconnection of circuits. It can be combined with appropriate thermal overload relays to form an electromagnetic starter for protecting circuits that may experience operational overload. The contactor is suitable for frequent starting and control of AC motors.

Detailed Description

Parameters:
Rated Current: 9~95A
Control Method: AC

Detail Parameters

<

Parameter Category	Parameter Item	Parameter Value
4.1 Main parameters and technical performance indicators of NC1 contactor (see Table 1)	Model	NC1-09(Z)
		NC1-12(Z)
		NC1-18(Z)
		NC1-25(Z)
		NC1-32(Z)
		NC1-40(Z)
		NC1-50(Z)
		NC1-65(Z)
		NC1-80(Z)
		NC1-95(Z)
	Casing Level°	09-12
		18
		25
		32
		40-65
		80-95
	Rated Operating Current (A)	380/400V
		AC-3: 9
		12
		18
		25
		32
		40
		50
		65
		80
		95
		AC-4: 3.5
		5
		7.7
		8.5
		12
		18.5
		24
		28
		37
		44
		660/690V
		AC-3: 6.6
		8.9
		12
		18
		21
		34
		39
		42
		49
		49
		AC-4: 1.5
		2
		3.8
		4.4
		7.5
		9
		12
		14
		17.3
		21.3
	Agreed Free Air Heating Current (A)	20
		20
		32
		40
		50
		60
		80
		80
		95⁵
		95⁵
	Rated Insulation Voltage (V)	690
		690
		690
		690
		690
		690
		690
		690
		690
		690
	Rated Three-phase Squirrel Cage Motor Power (AC-3) kW	220/230V
		2.2
		3
		4
		5.5
		7.5
		11
		15
		18.5
		22
		25
		380/400V
		4
		5.5
		7.5
		11
		15
		18.5
		22
		30
		37
		45
		660/690V
		5.5
		7.5
		10
		15
		18.5
		30
		37
		37
		45
		45
	Continuous duty cycle motor power (AC-4) kW	380/400V
		1.5
		2.2
		3
		4
		5.5
		7.5
		11
		15
		18.5
		22
		660/690V
		1.1
		1.5
		3.7
		4
		5.5
		7.5
		11
		15
		18.5
		Electrical life (times 10,000) AC-3: 100
		100
		100
		100
		80
		80
		60
		60
		60
		60
		AC-4: 20
		20
		20
		20
		15
		15
		15
		10
		10
		Mechanical life (times 10,000) 1000
		1000
		1000
		1000
		800
		800
		800
		600
		600
		Fuse model gG20
		gG20
		gG32
		gG40
		gG50
		gG63
		gG80
		gG80
		gG125
		gG125
	Crush terminal	pieces
		1
		2
		1
		2
		1
		2
		1
		2
		1
		2
		1
		2
		1
		2
		1
		2
		1
		2
		Non-precast end flexible cable (mm²) 1/2.5
		1/2.5
		1/2.5