Rockwell Automation 1606-XLSBUFFER24 Power Supply Reference Manual - Manual (Page 10)

All parameters are specified at 24V, 20A, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
10 Rockwell Automation Publication 1606-RM026A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
16. Protection Features
Buffer protection Electronically protected against overload, no-load and short-circuits
Output over-voltage protection
in buffer mode
typ. 32Vdc
max. 35Vdc In case of an internal defect, a redundant circuitry
limits the maximum output voltage. The output shuts-
down and makes automatic restart attempts.
Degree of protection IP 20 EN/IEC 60529
Penetration protection > 3.5mm e.g. screws, small parts
Reverse polarity protection yes max. –35Vdc
Input over-voltages protection yes max. 35Vdc, no harm or defect of the unit
Internal fuse not included
17. Safety
Output voltage SELV IEC/EN 60950-1
PELV EN 60204-1, EN 50178, IEC 60364-4-41
Class of protection II
Isolation resistance > 5MOhm Power port to housing, 500Vdc
PE resistance < 0.1Ohm between housing and chassis ground terminal
Dielectric strength 500Vac Power port to signal port
500Vac Power port / signal port to housing
18. Certifications
UL 508
IND. CONT. EQ.
18WM LISTED E56639 for use in the U.S.A. (UL 508) and
Canada (C22.2 No. 14-95)
Industrial Control Equipment
UL 60950-1 RECOGNIZED E168663 for use in the U.S.A. (UL 60950-1)
and Canada (C22.2 No. 60950)
Information Technology Equipment, Level 3
EN 60950-1, EN 61204-3 Complies with CE EMC and CE Low Voltage Directives
GOST R
C-TICK
GOST R certification is applicable for products intended for use
and sale within Russia. See below for link to the Certificate.
C-Tick compliance is for products intended for sale and use within
the Australian market. See below for link to the C-Tick
Declarations of Conformity.
Product certification information (including Certificates and Declarations of Conformity) can be found at www.ab.com/certifications .