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Protection Features
Safety Features
Attributes
Output protection
Output overvoltage protection
Degree of protection
Penetration protection
Over-temperature protection
Input overvoltage protection
Internal input fuse
Reverse input polarity protection
Reverse battery polarity protection
Protection against wrong battery
voltage
Battery deep discharge protection
Attributes
Input/output separation
Output voltage
Class of protection
(1)
Isolation resistance
Touch current (leakage
current)
(1) Center-tap terminal is categorized in the group of "power port".
Rockwell Automation Publication 1606-RM008A-EN-P - November 2021
DC-UPS - 24V, 20 A, 480 W Reference Manual
Values
In power supply mode: The DC-UPS is protected by the current limitation of
the supplying power supply or a circuit protector on the input in case the
power supply has an ampacity greater than 28 A. In battery mode: The DC-
UPS is electronically protected against overload, no-load, and short-circuits
Typ 32V DC
Max 35V DC
IP 20
> 3.5 mm (0.14 in)
included for battery mode
Max 35V DC
no
included
included
included
included
Values
Not provided
SELV
PELV
III
> 10MOhm
> 10MOhm
> 10MOhm
The leakage current that is produced by the DC-UPS itself depends on the input
voltage ripple and must be investigated in the final application. For a smooth DC
input voltage, the produced leakage current is less than 100 µA.
Notes
In case of an internal DC-UPS
anomaly, a redundant circuit limits
the maximum output voltage in
battery mode. The output shuts down
and automatically attempts to
restart.
EN/IEC 60529 For use in a controlled
environment according to CSA 22.2
No 107.1-01.
For example, screws, small parts
Output shuts down with automatic
restart. Additional temperature
protection for charging of batteries
can be found in
Batteries and Battery
Charging on page
13.
No harm or anomaly of the unit
Max -40V
Max -35V DC
Max +35V DC
Buffering stops when deep discharge
protection is active. Battery will be
disconnected from the DC-UPS.
Notes
The minus-pole is internally hard-wired
with the minus-pole of the input and
battery terminals.
IEC/EN 60950-1, The input must be
powered from a SELV power source.
IEC/EN 60204-1, EN 50178, IEC 62103, IEC
60364-4-41, The input must be powered
from a PELV power source.
PE (Protective Earth) connection not
required
Power port to signal port
Power port to housing
Signal port to housing
25
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