Datasheet

2 Specifications are subject to change without notice (28.11.2018)
RAM..G
RAM1...25 RAM1...50 RAM1...51 RAM1...100 RAM1...125
Rated operational current*
AC51 @ Ta=25°C 25 Arms 50 Arms 50 Arms 100 Arms 125Arms
AC53a @ Ta=25°C 5 Arms 15 Arms 15 Arms 20 Arms 30Arms
Min. operational current 150 mA 250 mA 400 mA 400 mA 500mA
Rep. overload current t=1 s < 55 AACrms < 125 AACrms < 125 AACrms < 150 AACrms < 200AACrms
Non-rep. surge current t=10 ms 325 A
p
600 A
p
800 A
p
1150 A
p
1900A
p
Off-state leakage current @
rated voltage and frequency < 3 mArms < 3m Arms < 3 mArms < 3 mArms < 3mArms
I
2
t for fusing t= 10 ms < 525 A
2
s < 1800 A
2
s < 3200 A
2
s < 6600 A
2
s <18000A
2
s
Critical dV/dt off-state min. 1000 V/µs 1000 V/µs 1000 V/µs 1000 V/µs 1000V/µs
Endurance testing acc. to UL 508
100,000 cycles 100,000 cycles 6,000 cycles 6,000 cycles 6,000 cycles
Note: UL requirement for General Use Endurance Testing is 6,000 cycles
* Refer to Heatsinks dimensions section for selection of a suitable heatsink
Output Specifications
Input Specifications
RAM1...D.. RAM1...A..
Control voltage range
RAM1A23... 3-32 VDC 20-280 VAC, 22-48 VDC
RAM1A60... 4-32 VDC 20-280 VAC, 22-48 VDC
Pick-up voltage @ Ta = 25˚C
RAM1A23... 2.5 VDC 18 VAC/DC
RAM1A60... 3.5 VDC 18 VAC/DC
Reverse voltage 32 VDC -
Drop out voltage 1.2 VDC 6 VAC/DC
Input current @ max input voltage
≤ 12 mA ≤ 20 mA
Response time pick-up 1/2 cycle ≤ 12 ms
Response time drop-out ≤ 1/2 cycle ≤ 40 ms
General Spec i fi ca tions
RAM1A23.. RAM1A60..
Operational voltage range 24 to 265 VACrms 42 to 660 VACrms
Blocking voltage 650 V
p
1200 V
p
Zero voltage turn-on ≤ 10 V ≤ 10 V
Operational frequency range 45 to 65 Hz 45 to 65 Hz
Power factor
> 0.5 @ 230 VACrms > 0.5 @ 600 VACrms
Approvals UR, cUR, CSA, VDE*, CCC, EAC UR, cUR, CSA, VDE*, CCC, EAC
CE-marking Yes Yes**
Isolation
Input to Output 4000 Vrms 4000 Vrms
Input and Output to case 4000 Vrms 4000 Vrms
* VDE0805, VDE0700 clause 29, 30.2.3
** Heatsink must be conected to ground
*** RAM1A..51G is UR, cUR approved only