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Specifications are subject to change without notice (28.02.2007)
RAM1...25
RAM...50
RAM1...75
RAM1...100
RAM...125
Rated operational current
AC51 @ Ta=25°C
25Arms
50Arms
75Arms
100Arms
125Arms
AC53a @ Ta=25°C
5Arms
15Arms
17Arms
20Arms
30Arms
Min. operational current
150mA
250mA
400mA
400mA
500mA
Rep. overload current t=1 s
< 55AACrms
< 125AACrms
< 130 AACrms
< 150 AACrms
< 200AACrms
Non-rep. surge current t=10 ms
325Ap
600Ap
800Ap
1150Ap
1900Ap
Off-state leakage current @
rated voltage and frequency
< 3mArms
< 3mArms
< 3mArms
< 3mArms
< 3mArms
I2t for fusing t= 10 ms
< 520A2s
< 1800A2s
< 3200A2s
< 6600A2s
<18000A2s
On-state voltage drop
≤ 1.6Vrms
≤ 1.6Vrms
≤ 1.6Vrms
≤ 1.6Vrms
≤ 1.6Vrms
Critical dV/dt off-state min.
1000V/µs
1000V/µs
1000V/µs
1000V/µs
1000V/µs
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 = 25˚C
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
RAM1A
≤ 12mA
≤ 20mA
RAM1B
≤ 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
Blocking 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
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