So lid Sta te Re la ys
In d ustria l, 1 -Ph a se ZS (IO ) w . LED
Typ e s RAM1 A, RAM1 B
• 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 1600V
p
• Opto-isolation: > 4000VACrms
• Integrated overvoltage protection by self
switching (suffix “Z” option)
Pro d u ct De scrip tio n
O rd e rin g Ke y
RAM 1 A 6 0 D 1 2 5 Z
The industrial, 1-phase relay es zero. The instant-on relay Solid State Relay
with antiparallel thyristor out- with DC control input can be Number of poles
put is the most widely used used for phase angle control. Switching mode
industrial SSR due to its mul- The built-in snubber secures Rated operational voltage
tiple application possibilities. transient protection. The LED Control voltage
The relay can be used for indicates the status of the Rated operational current
resistive,
inductive
and control input. The clip-on cov- Options
capacitive loads. The zero er secures touch protection
switching relay switches ON (IP 20). Protected output ter-
when the sinusoidal curve minals can handle cables up
crosses zero and switches to 16 mm2.
OFF when the current cross-
Ty p e Se le ctio n
Switching mode
Rated operational
voltage
Control voltage
Rated operational
current
Options
A: Zero Switching
B: Instant-on switching
(DC Control only)
23: 230VACrms
60: 600VACrms
69: 690VACrms
A: 20-280 VAC/22-48VDC
D: 3 - 32VDC*
25 : 25AACrms
50 : 50AACrms
75 : 75AACrms
Z: Overvoltage
protection (self-
switching)
* 4 to 32VDC for RAM1A60..., RAM1A69... 100:100AACrms
* 4 to 32VDC for RAM1B types
125:125AACrms
Se le ctio n Gu id e
Rated
Blocking Control
Rated operational current
operational voltage
voltage
voltage
25A
50A
75A
100A
125A
230VACrms
650V
3 - 32VDC
20-280VAC/22-48VDC
RAM1A23D25 RAM1A23D50 RAM1A23D75 RAM1A23D100 RAM1A23D125
RAM1A23A25 RAM1A23A50 RAM1A23A75 RAM1A23A100 RAM1A23A125
p
600VACrms 1200V
4 - 32VDC
RAM1A60D25 RAM1A60D50 RAM1A60D75 RAM1A60D100 RAM1A60D125
p
20-280VAC/22-48VDC
4-32VDC
20-280VAC/ 22-48VDC
RAM1A60A25 RAM1A60A50 RAM1A60A75 RAM1A60A100 RAM1A60A125
690VACrms 1600V
-
-
-
-
RAM1A69D75 RAM1A69D100 RAM1A69D125
RAM1A69A75 RAM1A69A100 RAM1A69A125
p
Options
Overvoltage protection by self-switching: add suffix Z to include. Example: RAM1A60D25Z. Not applicable for 690V version.
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Specifications are subject to change without notice (28.02.2007)
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