| HEAT
DISSIPATION |
||||
|
MOTOR PROTECTION RELAYS |
||||
|
Type |
Range |
Resistance |
Dissipation at |
Dissipation at |
|
THERMAL OVERLOAD RELAYS RF9 |
||||
|
RF..9 015 |
0.09-0.15 |
94.7 |
0.77 |
2.13 |
|
RF..9 023 |
0.14-0.23 |
38.0 |
0.74 |
2.01 |
|
RF..9 033 |
0.2-0.33 |
15.8 |
0.63 |
1.72 |
|
RF..9 05 |
0.3-0.5 |
9.72 |
0.87 |
2.43 |
|
RF..9 075 |
0.45-0.75 |
3.50 |
0.71 |
1.97 |
|
RF..9 1 |
0.6-1 |
2.06 |
0.74 |
2.06 |
|
RF..9 1V5 |
0.9-1.5 |
0.95 |
0.77 |
2.13 |
|
RF..9 2V3 |
1.4-2.3 |
0.36 |
0.70 |
1.9 |
|
RF..9 33 |
2-3.3 |
0.21 |
0.82 |
2.24 |
|
RF..9 5 |
3-5 |
0.081 |
0.73 |
2.03 |
|
RF..9 75 |
4.5-7.5 |
0.045 |
0.91 |
2.53 |
|
RF..9 10 |
6-10 |
0.026 |
0.93 |
2.57 |
|
RF..9 15 |
9-15 |
0.011 |
0.89 |
2.48 |
|
THERMAL OVERLOAD RELAYS RF38 |
||||
|
RF..38 0016 |
0.1-0.16 |
76.35 |
0.76 |
1.95 |
|
RF..38 0025 |
0.16-0.25 |
29.11 |
0.75 |
1.82 |
|
RF..38 0040 |
0.25-0.4 |
12.26 |
0.76 |
1.96 |
|
RF..38 0063 |
0.4-0.63 |
4.67 |
0.75 |
1.86 |
|
RF..38 0100 |
0.63-1 |
2.07 |
0.82 |
2.07 |
|
RF..38 0160 |
1-1.6 |
0.77 |
0.77 |
1.97 |
|
RF..38 0250 |
1.6-2.5 |
0.29 |
0.75 |
1.83 |
|
RF..38 0400 |
2.5-4 |
0.13 |
0.83 |
2.14 |
|
RF..38 0650 |
4-6.5 |
0.044 |
0.72 |
1.89 |
|
RF..38 1000 |
6.3-10 |
0.024 |
0.96 |
2.41 |
|
RF..38 1400 |
10-14 |
0.01 |
0.83 |
2.02 |
|
RF..38 1800 |
12-18 |
0.0066 |
1.12 |
2.16 |
|
RF..38 2300 |
17-23 |
0.0042 |
1.24 |
2.26 |
|
RF..38 2500 |
20-25 |
0.0034 |
1.37 |
2.14 |
|
RF..38 3200 |
25-32 |
0.0029 |
1.66 |
3.00 |
|
RF..38 3800 |
32-38 |
0.0022 |
2.28 |
3.22 |
|
THERMAL OVERLOAD RELAYS RF25 |
||||
|
RF..25 015 |
0.09-0.15 |
94.7 |
0.77 |
2.13 |
|
RF..25 023 |
0.14-0.23 |
38.0 |
0.74 |
2.01 |
|
RF..25 033 |
0.2-0.33 |
15.8 |
0.63 |
1.72 |
|
RF..25 05 |
0.3-0.5 |
9.72 |
0.87 |
2.43 |
|
RF..25 075 |
0.45-0.75 |
3.50 |
0.71 |
1.97 |
|
RF..25 1 |
0.6-1 |
2.06 |
0.74 |
2.06 |
|
RF..25 1V5 |
0.9-1.5 |
0.95 |
0.77 |
2.13 |
|
RF..25 2V3 |
1.4-2.3 |
0.36 |
0.70 |
1.9 |
|
RF..25 33 |
2-3.3 |
0.21 |
0.82 |
2.24 |
|
RF..25 5 |
3-5 |
0.081 |
0.73 |
2.03 |
|
RF..25 75 |
4.5-7.5 |
0.045 |
0.91 |
2.53 |
|
RF..25 10 |
6-10 |
0.026 |
0.93 |
2.57 |
|
RF..25 15 |
9-15 |
0.011 |
0.89 |
2.48 |
|
RF..25 23 |
14-23 |
0.004 |
0.73 |
1.96 |
|
RF..25 26 |
17-26 |
0.004 |
1.0 |
2.6 |
|
THERMAL OVERLOAD RELAYS RF95 |
||||
|
RF..95 23 |
14-23 |
0.0045 |
0.88 |
2.38 |
|
RF..95 33 |
20-33 |
0.0023 |
0.92 |
2.50 |
|
RF..95 42 |
28-42 |
0.0018 |
1.40 |
3.17 |
|
RF..95 50 |
35-50 |
0.0013 |
1.65 |
3.37 |
|
RF..95 65 |
46-65 |
0.0010 |
2.14 |
4.26 |
|
RF..95 82 |
60-82 |
0.0006 |
2.16 |
4.03 |
|
RF..95 95 |
70-95 |
0.0004 |
2.16 |
4.03 |
|
RF..95 110 |
90-110 |
0.0004 |
2.87 |
4.3 |
|
THERMAL OVERLOAD RELAYS RF200, RF420 |
||||
|
RF..200 100 |
60-100 |
0.003 |
0.73 |
2.03 |
|
RF..200 125 |
75-125 |
0.003 |
0.73 |
2.03 |
|
RF..200 150 |
90-150 |
0.003 |
0.73 |
2.03 |
|
RF..200 200 |
120-200 |
0.003 |
0.73 |
2.03 |
|
|
|
|
|
|
|
RF..420 250 |
150-250 |
0.003 |
0.73 |
2.03 |
|
RF..420 300 |
180-300 |
0.003 |
0.73 |
2.03 |
|
RF..420 420 |
250-420 |
0.003 |
0.73 |
2.03 |
|
ELECTRONIC MOTOR PROTECTION RELAYS |
||
|
Type |
Rated supply voltage Us |
Maximum dissipation
at rated supply |
|
DRPTC |
24VDC |
0.58 |
|
DRPT |
24VAC |
1.55 |
|
DRPT |
110VAC |
1.4 |
|
DRPT |
220VAC |
1.7 |
 |
To
calculate total heat dissipation, add contact dissipation to the value given
above. The maximum specific dissipation of the relay contacts is 0.2W/A. The estimate of contact dissipation is to be made considering total contact current and the diversity factor if the device is equipped with more than one output relay. |
