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MSRK series
5
1.4. Specifications:
- electrical specifications (tab.2)
- mechanical specifications (tab.3)
- operating specifications (tab. 4)
Table 2. Electrical parameters.
Models
MSRK2012
MSRK3012
PSU type
A (EPS - External Power Source),
protection class 1
–2, II environmental class
Supply voltage
~ 20-22 V; min. 50 VA
~ 20-22 V; min. 80 VA
Current consumption
2,3 A
3,55 A
Power frequency
50 Hz
PSU power
27 W
41 W
Output current (max.)
2 A
3 A
Efficiency
81%
81%
Output voltage
11 - 13,8 V
– buffer operation
10 - 13,8 V
– battery-assisted operation
Voltage adjustment range
13 - 14 V
Ripple voltage (max.)
10 mV p-p
45 mV p-p
Current consumption by the PSU
systems during battery-assisted
operation
11 mA
10 mA
Low battery voltage indication
Ubat < 11,5 V, during battery operation
Charging current (jumper selectable)
0,2/0,5A
0,5/1A
Battery circuit protection SCP and
reverse polarity connection
- F
BAT
fuse (in case of a failure, fuse-element replacement required)
Deep discharge battery protection UVP
U<10 V (± 0,5V) – disconnection of battery terminal
Optical indication
- LEDs on PCB of power supply unit
- optionally additional LED optical indication (see section 3.1)
Technical outputs:
- EPS; output indicating AC power
failure
- APS; output indicating battery failure
- OC type: 50mA max.
normal status: L (0V) level, failure: hi-Z level
- OC type: 50mA max.
normal status: L (0V) level, failure: hi-Z level
Fuses: - F
BAT
F 3,15A/250V
F 5A/250V
Optional equipment
set of LED optical indication PKAZ168
Notes
Convectional cooling
Table 3. Mechanical parameters
Dimensions
L=86, W=73, H=42 [+/- 2mm]
L=94, W=98, H=57 [+/- 2mm]
Fixing
Mounting pins x 4 (PCB fi=4,2 mm)
Net / gross weight
0,05 / 0,1 [kg]
0,14 / 0,2 [kg]
Connectors
Outputs:
Ф0,41÷1,63 (AWG 26-14)
Battery output BAT: 6,3F-2,5, 30cm
