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1.25
1.07
0.88
0.70
0.52
0.34
0.16
55
1.46
1.25
1.04
0.84
0.63
0.42
0.21
48
1.73
1.49
1.25
1.01
0.77
0.52
0.28
41
2.08
1.80
1.51
1.23
0.94
0.66
0.37
35
2.56
2.22
1.87
1.53
1.18
0.84
0.49
29
3.24
2.81
2.38
1.95
1.52
1.09
0.66
23
4.26
3.71
3.15
2.59
2.03
1.47
0.92
18
5.99
5.22
4.45
3.67
2.90
2.12
1.35
13
9.49
8.27
7.06
5.85
4.64
3.43
2.22
8
-
17.5
15.0
12.4
9.91
7.39
4.86
4
20
30
40
50
60
70
80
3.23
2.80
2.37
1.94
1.51
1.09
0.66
23
3.70
3.21
2.73
2.24
1.75
1.26
0.78
21
4.30
3.74
3.17
2.61
2.05
1.49
0.92
18
5.07
4.41
3.76
3.10
2.44
1.78
1.12
15
6.12
5.33
4.54
3.75
2.96
2.17
1.38
13
7.58
6.61
5.64
4.66
3.69
2.72
1.75
10
9.80
8.55
7.30
6.05
4.80
3.55
2.30
8
13.5
11.80 10.09
8.37
6.66
4.94
3.23
6
-
18.3
15.7
13.04 10.39
7.74
5.09
4
-
-
-
-
-
16.2
10.7
2
20
30
40
50
60
70
80
Specifications are subject to change without notice (28.02.2007)
3
A1
( )
A2( )
+
~
T1
L1
ZC
IO
REGULATION
-
~
Weight
25A, 50A
Approx. 60g
75A, 100A, 125A
Approx. 100g
Housing material
Noryl, black
Baseplate
25A, 50A
Aluminium
75A, 100A, 125A
Copper, nickel-plated
Housing Specifications
Relay
Mounting screws
M5
Mounting torque
1.5-2.0Nm
Control terminal
Mounting screws
M3 x 9
Mounting torque
0.5Nm
Power terminal
Mounting screws
M5 x 9
Mounting torque
2.4Nm
Dimensions
APPLY
HEATSINK
COMPOUND
LED
Functional Diagram
RAM1A, RAM1B
Heatsink Dimensions (load current versus ambient temperature)
RAM..25
TA
Ambient temp. [
°C]
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
Power
dissipation [W]
Thermal resistance
[K/W]
Load
current [A]
RAM..50
TA
Ambient temp. [
°C]
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
Power
dissipation [W]
Thermal resistance
[K/W]
All dimensions in mm.
Load
current [A]
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