KNR1(LR2-D)series thermal relay can be used in the circuit of 50Hz or 60Hz, rated insulation voltage 660V, rated current 0.1-93A for protecting the phase break when the electric motor is overload.
The relay has different mechanism and temperature compensation& can be pluged in KNC1 series AC contact.
A. Fundamental parameter of the main circuit
Rated insulation voltage 660V;
Rated working current 25, 36, 93A separately;
The regulator seal of rate setting current and setting.
Current of the thermal component
B. Auxiliary circuit
There is a pair of NO and NC contact with electric insulation;
Rated insulation voltage 500V;
Rated frequency 50-60Hz;
Use group, rated working voltage, appoint thermal current and rated current.
| Type |
Rated working current of
thermal relay |
Thermal component
Scale of rated current(A) |
| KNR1-13 |
25 |
1301 |
0.10-0.16 |
| 1302 |
0.16-0.25 |
| 1303 |
0.25-0.40 |
| 1304 |
0.40-0.63 |
| 1305 |
0.63-1.0 |
| 1306 |
1.0-1.6 |
| 13×6 |
1.25-2.0 |
| 1307 |
1.6-2.5 |
| 1308 |
2.5-4.0 |
| 1310 |
4.0-6.0 |
| 1312 |
5.5-8.0 |
| 1314 |
7.0-10.0 |
| 1316 |
9.0-13.0 |
| 1321 |
12.0-18.0 |
| 1322 |
17.0-25.0 |
| KNR1-23 |
36 |
2353 |
23.0-32.0 |
| 2255 |
28.0-36.0 |
| KNR1-33 |
93 |
3353 |
23.0-32.0 |
| 3355 |
30.0-40.0 |
| 3357 |
37.0-50.0 |
| 3359 |
48.0-65.0 |
| 3361 |
55.0-70.0 |
| 3363 |
63.0-80.0 |
| 3365 |
80.0-93.0 |
|
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