ARRI ALEXA Mini LF Ready to Shoot V-Mount Set (LPL) - Manual (Page 26)

Power Supply 26
10 Power Supply
BAT IN
The ALEXA Mini LF accepts an input voltage range from 11.0 to 34.0 V DC.
The camera can be solely powered through the 8-pin LEMO BAT connec-
tor located at the back of the camera. You can use the KC50-S (K2.75007.0)
or KC50-SP-S (K2.0001275) power cable or one of the various on-board
adapter plates for V-Mount and Gold Mount batteries to supply the camera
with power.
NOTICE
Power solutions from ARRI (K2.0014530, K2.0014531, K2.0014532, K2.0014533) can be used
safely up to a total current of 10 A (e.g. 144 W total at 14.4 V, including camera and powered
accessories). For use cases demanding more than 10 A, alternative solutions such as block
batteries or the B-Mount Power Splitting Box should be considered.
Accessory Power
24 V
The total available power on the 24V ACC converter is just below 100 W to be compliant with DIN EN
62368 PS2 (limited power source annex Q, table Q.1, single fault tolerant). The camera's 24V ACC
converter power is shared by
RS Connector
EXT Connector
LBUS Connector (on lens mount)
ETH Connector
Typically, the 24V ACC converter delivers a permanent current of 3.0 A at 14.0 V camera supply
voltage and ambient temperatures of 25° Celsius / 77° Fahrenheit.
If the camera supply voltage is low, typically below 14.0 V (the camera is designed for Li-Ion based
batteries that deliver about 14V until discharged to about 10-15%) the boost converter is current limited
and the power on the 24V ACC converter is limited furthermore. Reason here is, that maximum current
draw from the entire camera should not exceed 20A under all conditions since no on-board batteries
can deliver higher currents.
12 V
The 12V ACC converter power is shared by
12V Connector
AUDIO Connector
and outputs 12 V with a max. current of 2 A. If the camera supply voltage is below 13.5 V, the 12 V
ACC converter power output is reduced by approx. 1,5 V.
Power Consumption
In order to process the increased pixel count while still maintaining ALEXA image quality, the ALEXA
Mini LF draws between 69 W and 89 W while recording, with MVF-2 connected, but no further
accessories attached. 69 W have been measured while recording MXF/ARRIRAW in recording
resolution LF 16:9 UHD at 24 fps. 89 W have been measured while recording MXF/Apple ProRes in
recording resolution LF 16:9 2K at 90 fps. Electronic accessories will increase power draw based on the
accessories’ draw.