Specifications are subject to change without notice (28.02.2007)
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
Blocking
Control
Rated operational current
operational
voltage
voltage
25A
50A
75A
100A
125A
voltage
230VACrms
650Vp
3 - 32VDC
RAM1A23D25 RAM1A23D50 RAM1A23D75 RAM1A23D100 RAM1A23D125
20-280VAC/22-48VDC
RAM1A23A25 RAM1A23A50
RAM1A23A75
RAM1A23A100
RAM1A23A125
600VACrms
1200Vp
4 - 32VDC
RAM1A60D25 RAM1A60D50 RAM1A60D75 RAM1A60D100 RAM1A60D125
20-280VAC/22-48VDC
RAM1A60A25 RAM1A60A50
RAM1A60A75
RAM1A60A100
RAM1A60A125
690VACrms
1600Vp
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
• Blocking voltage: Up to 1600Vp
• Opto-isolation: > 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 mm2.
Selection Guide
Industrial, 1-Phase ZS (IO) w. LED
Types RAM1A, RAM1B
RAM 1 A 60 D 125 Z
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