Specifications are subject to change without notice (22.07.2006)
1
Type Selection
Switching mode
Rated operational
Control voltage
Rated operational
Options
voltage
current
A: Zero Switching
23: 230VACrms
A: 20-280 VAC/22-48VDC
25 : 25AACrms
Z: Overvoltage
B: Instant-on switching
60: 600VACrms
D: 3 - 32VDC*
50 : 50AACrms
protection (self-
(DC Control only)
69: 690VACrms
75 : 75AACrms
switching)
* 4 to 32VDC for RAM1A60..., RAM1A69...
100:100AACrms
* 4 to 32VDC for RAM1B types
125:125AACrms
Rated
Non-rep.
Control
Rated operational current
operational
voltage
voltage
25A
50A
75A
100A
125A
voltage
230VACrms
650V
p
3 - 32VDC
RAM1A23D25 RAM1A23D50 RAM1A23D75 RAM1A23D100 RAM1A23D125
20-280VAC/22-48VDC
RAM1A23A25 RAM1A23A50
RAM1A23A75
RAM1A23A100
RAM1A23A125
600VACrms
1200V
p
4 - 32VDC
RAM1A60D25 RAM1A60D50 RAM1A60D75 RAM1A60D100 RAM1A60D125
20-280VAC/22-48VDC
RAM1A60A25 RAM1A60A50
RAM1A60A75
RAM1A60A100
RAM1A60A125
690VACrms
1600V
p
4-32VDC
-
-
RAM1A69D75 RAM1A69D100 RAM1A69D125
20-280VAC/ 22-48VDC
-
-
RAM1A69A75
RAM1A69A100
RAM1A69A125
Options
1
Overvoltage protection by self-switching: add suffix Z to include. Example: RAM1A60D25Z. Not applicable for 690V version.
Zero switching (RAM1A) or instant-on
switching (RAM1B) AC Solid State Relay
Direct copper bonding (DCB) technology
LED indication
Clip-on IP 20 protection cover
Self-lifting terminals
Housing free of moulding mass
2 input ranges: 3-32 * and 20-280 VAC/22-48VDC
Operational ratings: Up to 125AACrms and 600VACrms
Non-repetitive voltage: Up to 1600V
p
Opto-insulation: > 4000VACrms
Integrated overvoltage protection by self
switching (suffix "Z" option)
Product Description
The industrial, 1-phase relay
with antiparallel thyristor out-
put is the most widely used
industrial SSR due to its mul-
tiple application possibilities.
The relay can be used for
resistive, inductive and
capacitive loads. The zero
switching relay switches ON
when the sinusoidal curve
crosses zero and switches
OFF when the current cross-
Solid State Relay
Number of poles
Switching mode
Rated operational voltage
Control voltage
Rated operational current
Options
Ordering Key
Solid State Relays
es zero. The instant-on relay
with DC control input can be
used for phase angle control.
The built-in snubber secures
transient protection. The LED
indicates the status of the
control input. The clip-on cov-
er secures touch protection
(IP 20). Protected output ter-
minals can handle cables up
to 16 mm
2
.
Selection Guide
Industrial, 1-Phase ZS (IO) w. LED
Types RAM1A, RAM1B
RAM 1 A 60 D 125 Z
2
Specifications are subject to change without notice (22.07.2006)
RAM1...25
RAM...50
RAM1...75
RAM1...100
RAM...125
Rated operational current
AC51 @ Ta=25C
25Arms
50Arms
75Arms
100Arms
125Arms
AC53a @ Ta=25C
5Arms
15Arms
17Arms
20Arms
30Arms
Min. operational current
150mA
150mA
150mA
150mA
150mA
Rep. overload current t=1 s
< 55AACrms
< 125AACrms
< 130 AACrms
< 150 AACrms
< 200AACrms
Non-rep. surge current t=10 ms
300A
p
580A
p
800A
p
1150A
p
1900A
p
Off-state leakage current @
rated voltage and frequency
< 3mArms
< 3mArms
< 3mArms
< 3mArms
< 3mArms
I
2
t for fusing t= 1-10 ms
< 450A
2
s
< 1680A
2
s
< 3200A
2
s
< 6600A
2
s
<18000A
2
s
Critical dI/dt
50A/s
50A/s
100A/s
100A/s
100A/s
On-state voltage drop
1.6Vrms
1.6Vrms
1.6Vrms
1.6Vrms
1.6Vrms
Critical dV/dt off-state min.
1000V/s
1000V/s
1000V/s
1000V/s
1000V/s
Input Specifications
RAM1A, RAM1B
Output Specifications
RAM1...D..
RAM1...A..
Control voltage range
RAM1A23...
3-32VDC
20-280VAC, 22-48VDC
RAM1A60..., RAM1A69...
4-32VDC
20-280VAC, 22-48VDC
RAM1B...
4-32VDC
-
Pick-up voltage @ Ta = 25C
RAM1A23...
2.5VDC
18VAC/DC
RAM1A60..., RAM1A69...
3.5VDC
18VAC/DC
RAM1B...
3.5VDC
-
Reverse voltage
32VDC
-
Drop out voltage
1.2VDC
6VAC/DC
Input current @ max input voltage
RM1A
12mA
20mA
RM1B
15mA
-
Response time pick-up
RAM1A
1/2 cycle
12ms
RAM1B
0.1ms
-
Response time drop-out
1/2 cycle
40ms
General Specifications
RAM1.23..
RAM1.60..
RAM1.69..
Operational voltage range
RAM1A...
24 to 265VACrms
42 to 660VACrms
42 to 760VACrms
RAM1B...
42 to 265VACrms
42 to 660VACrms
42 to 760VACrms
Non-rep. peak voltage
650V
p
1200V
p
1600V
p
Zero voltage turn-on
10V
10V
10V
Operational frequency range
45 to 65Hz
45 to 65Hz
45 to 65Hz
Power factor
> 0.5 @ 230VACrms
> 0.5 @ 600VACrms
> 0.5 @ 690VACrms
Approvals
UL, cUL, CSA, VDE*
UL, cUL, CSA, VDE*
-
CE-marking
Yes
Yes** Yes**
* VDE0805
** Heatsink must be conected to ground
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 (22.07.2006)
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
T
A
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
T
A
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]
0.94
0.82
0.70
0.58
0.47
0.35
0.23
85
1.10
0.96
0.82
0.69
0.55
0.41
0.27
73
1.30
1.14
0.98
0.81
0.65
0.49
0.33
61
1.57
1.38
1.18
0.98
0.79
0.59
0.39
51
1.95
1.70
1.46
1.22
0.97
0.73
0.49
41
2.48
2.17
1.86
1.55
1.24
0.93
0.62
32
3.32
2.90
2.49
2.07
1.66
1.24
0.83
24
4.75
4.15
3.56
2.97
2.37
1.78
1.19
17
7.68
6.72
5.76
4.80
3.84
2.88
1.92
10
-
14.59 12.50 10.42
8.34
6.25
4.17
5
20
30
40
50
60
70
80
0.60
0.52
0.43
0.34
0.26
0.17
0.09
117
0.74
0.64
0.54
0.44
0.34
0.24
0.14
101
0.91
0.79
0.68
0.56
0.45
0.33
0.22
87
1.09
0.96
0.82
0.68
0.55
0.41
0.27
73
1.33
1.16
1.00
0.83
0.66
0.50
0.33
60
1.66
1.45
1.24
1.04
0.83
0.62
0.41
48
2.16
1.89
1.62
1.35
1.08
0.81
0.54
37
3.01
2.64
2.26
1.88
1.51
1.13
0.75
27
4.73
4.14
3.55
2.96
2.37
1.78
1.18
17
9.94
8.70
7.45
6.21
4.97
3.73
2.48
8
20
30
40
50
60
70
80
0.63
0.55
0.47
0.40
0.32
0.24
0.16
126
0.73
0.64
0.54
0.45
0.36
0.27
0.18
110
0.84
0.74
0.63
0.53
0.42
0.32
0.21
95
0.99
0.87
0.74
0.62
0.50
0.37
0.25
81
1.20
1.05
0.90
0.75
0.60
0.45
0.30
67
1.48
1.30
1.11
0.93
0.74
0.56
0.37
54
1.92
1.68
1.44
1.20
0.96
0.72
0.48
42
2.65
2.32
1.98
1.65
1.32
0.99
0.66
30
4.12
3.60
3.09
2.57
2.06
1.54
1.03
19
8.55
7.48
6.41
5.34
4.27
3.21
2.14
9
20
30
40
50
60
70
80
4
Specifications are subject to change without notice (22.07.2006)
Heatsink Dimensions (cont.)
Carlo Gavazzi Heatsink
Thermal
for power
(see Accessories)
resistance... dissipation
No heatsink required
---
N/A
RHS 300
5.00 K/W
> 0 W
RHS 100
3.00 K/W
> 25 W
RHS 45C
2.70 K/W
> 55 W
RHS 45B
2.00 K/W
> 60 W
RHS 90A
1.35 K/W
> 60 W
RHS 45A plus fan
1.25 K/W
> 0 W
RHS 45B plus fan
1.20 K/W
> 0 W
RHS 112A
1.10 K/W
> 100 W
RHS 301
0.80 K/W
> 80 W
RHS 90A plus fan
0.45 K/W
> 0 W
RHS 112A plus fan
0.40 K/W
> 0 W
RHS 301 plus fa
0.25 K/W
> 0 W
Consult your distribution
> 0.25 K/W
N/A
Infinite heatsink - No solution
---
N/A
Heatsink Selection
RAM1A, RAM1B
RAM..75
T
A
Ambient temp. [
C]
75.0
67.5
60.0
52.5
45.0
37.5
30.0
22.5
15.0
7.5
Power
dissipation [W]
Thermal resistance
[K/W]
Load
current [A]
RAM..100
T
A
Ambient temp. [
C]
100.0
90.0
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
Power
dissipation [W]
Thermal resistance
[K/W]
Load
current [A]
RAM..125
T
A
Ambient temp. [
C]
125.0
112.5
100.0
87.5
75.0
62.5
50.0
37.5
25.0
12.5
Power
dissipation [W]
Thermal resistance
[K/W]
Load
current [A]
Rated insulation voltage
Input to output
4000VACrms
Output to case
4000VACrms
Insulation
Operating temperature
-40 to +80C (-40 to +176F)
Storage temperature
-40 to +100C (-40 to +212F)
Junction temperature
125C (257F)
Thermal Specifications
Specifications are subject to change without notice (22.07.2006)
5
RAM1A, RAM1B
Faston
terminals
Fork Terminals
All accessories can be ordered pre-assembled with Solid State Relays.
Other accessories include DIN rail adaptors, fuses, varistors and spacers.
For futher information refer to Accessories datasheets.
Faston tabs
Tab dimensions accord-
ing to DIN 46342 part 1
Pure tin-plated brass
Terminal adaptors
for 35mm
2
cable
Type RM635FK
Pack size: 20 pieces
RAM Solid State Relay
Faston
terminals
Tab orientation
Input Tab width: 4.8mm
Output Tab width: 6.3mm
Ordering Key
Ordering Key
Screw mounted
Faston
terminals
RAM1A60D25 F 4
*
Other Accessories
Heatsinks and fans
Type RHS....
0.25 to 5.00 k/W
Single and dual
relay types
Touch safety cover
Type RMIP20
IP20 protection degree
Pack size: 20 pieces
RS, RM Solid State Relay
Tab orientation
** 48: 4.8mm faston for input
63: 6.3mm faston for output
Faston
terminals
in packs of 20
RM48 F4
*
**
0: Flat (0)
4: Angled (45)
*
RM terminal adaptor
Touch protected (optional)
RM635FK P
PDF 
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