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Thermal Relay KNR( 3UA Series)
Thermal Relay KNR( 3UA Series)
Model NO.: KNR8(3UA Series)
Standard: KNR8(3UA) Series
Product Description

KNR8(3UA) series overload relay is suitable for 50Hz/60Hz, rated voltage up 690~1000V, rated current 0.1~400A in main circuit of long time working. It is used to protect AC three-phase asynchronous motor against overload and open phase. This products conformity with IEC947-4, VDE0660, GB14048.4 standards.

The altituelde should be not higher than 2000m;
The ambient temperature: -25º C~55º C;
The relative humidity: When +25º C, the relative humidity of air should be not more than 90%.

Senies overload relay of thermal metal mode, tripping class is 10A;
Setting current continuous adjustable device;
Trip indicator;
Test button;
Reset button by hand operation and automatic reset button;
Have a pair of No and Nc insulation contact in electricity;
Mode of installation: Install independently or can plug in the AC contactor.

TypeSphere of
setting
current(A)		Fuse specification (A)
IEC947-4  
"1""2"
KNR8-500.1-0.16
 		350.5
0.16-0.25
 		1
1.25-0.4
 		1.6
0.4-0.63
 		2
0.63-1
 		4
0.8-1.25
 		4
1-1.6
 		6
1.25-2
 		6
1.6-2.5
 		6
2-3.2
 		10
2.5-4
 		10
3.2-5
 		20
4-6.3
 		16
5-8
 		16
6.3-10
 		25
8-12.5
 		25
10-14.525
KNR8-520.1-0.16
 		630.5
0.16-0.25
 		1
0.25-0.4
 		1.6
0.4-0.63
 		2
0.63-1
 		4
0.8-1.25
 		4
1-1.6
 		6
1.25-2
 		6
1.6-2.5
 		6
2-3.2
 		10
2.5-4
 		10
3.2-5
 		16
4-6.3
 		16
5-8
 		20
6.3-10
 		25
8-12.5
 		25
10-16
 		35
12.5-20
 		35
16-2550
KNR8-551-1.6
 		1006
1.25-2
 		6
1.6-2.5
 		6
2-3.2
 		10
2.5-4
 		10
3.2-5
 		16
4-6.3
 		16
5-8
 		20
6.3-10
 		25
8-12.5
 		25
10-16
 		35
12.5-20
 		50
16-25
 		50
20-32
 		80
25-36
 		80
32-40
 		80
36-4580
TypeSphere of
setting
current(A)		Fuse specification (A)
IEC947-4
"1""2"
KNR8-5812.5-20
 		16050
16-25
 		50
20-32
 		63
25-40
 		80
32-50
 		100
40-57
 		100
50-63
 		100
57-70
 		125
63-80
 		250160
70-88
 		160
KNR8-6055-80
 		250160
63-90
 		160
80-110
 		315200
90-120
 		224
110-135
 		224
KNR8-6155-80
 		250160
63-90
 		160
80-110
 		315200
90-120
 		224
110-135
 		224
120-150224
KNR8-590.1-0.16
 		250.5
0.16-0.25
 		1
0.25-0.4
 		1.6
0.4-0.63
 		2
0.63-1
 		4
0.8-1.25
 		4
1-1.6
 		6
1.25-2
 		6
1.6-2.5
 		6
2-3.2
 		10
2.5-4
 		10
3.2-5
 		16
4-6.3
 		16
5-8
 		16
6.3-10
 		16
8-12.5
 		3525
10-16
 		6335
12.5-20
 		6350
16-25
 		6350
20-32
 		8063
25-40
 		12580
32-40
 		160100
40-57
 		160125
50-63160125
KNR8-6255-80
 		250
250
 		160
63-90
 		160
80-110250200
90-120
110-135
120-150		315224
135-160
150-180		355
KNR8-6680-125
 		500250
125-200
 		315
160-250
 		400
200-320
 		400
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