Mastervolt MLI Ultra 12/2750

40
MLI Ultra 12/2750, 12/5500, 24/5500 – User and Installation Manual
MLI Ultra 12/2750
MLI Ultra 12/5500
MLI Ultra 24/5500
Standards, approvals &
listings
CE, E-Mark, UN38.3
Interfacing
MasterBus connectivity
Yes
Powering capabilities for
MasterBus
Yes
CZone
Yes
External disconnect switch
Yes, MANDATORY, direct connection for safety relay
Important available monitoring/events
Battery Safety event
Preventing unsafe overcharge, over discharge and
overtemperature
Stop Charge event
Communication to charging devices preventing overcharging
1) If a Bulk/Absorption voltage of 14V is used (User Defined battery type), the Stop Charge Event is not required.
2) Charging at temperatures below -5ºC / 23ºF may result in battery not accepting charge current.
3) Temperatures below 5ºC / 41ºF and above 25ºC / 77ºF may affect lifetime and cycle life. See page 41.
4) Trigger point for battery safety event.
Resettable battery safety event; occurs when one of the following conditions is true:
12V battery
Any temperature:
>15V 10s
<5°C / 41°F:
<10.75V 10s
>10°C / 50°F:
<12V 10s
24V battery
Any temperature:
>30V 10s
<5°C / 41°F:
<21.5V 10s
>10°C / 50°F:
<24V 10s
Individual cell
Any temperature:
>4.0V 1s
<5°C / 41°F:
<2.7V 10s or <2.4V 1s
>10°C / 50°F:
<3.0V 10s or <2.7V 1s
>65°C / 149°F:
Any voltage (immediate)
Non-resettable battery safety event; occurs when one of the following conditions is true:
12V battery
Any temperature:
>15.5V 1s
<5°C / 41°F:
<10V 10s
>10°C / 50°F:
<11V 10s
24V battery
Any temperature:
>31V 1s
<5°C / 41°F:
<20V 10s
>10°C / 50°F:
<22V 10s
Individual cell
Any temperature:
>4.2V 1s
<5°C / 41°F:
<2.4V 10s or <2.2V 1s
>10°C / 50°F:
<2.7V 10s or <2.5V 1s
>75°C / 167°F:
Any voltage (immediate)