Rockwell Automation 1606-XLS960F User manual

Reference Manual Original Instructions
Switched Mode Power Supply
Catalog Number 1606-XLS960F

2Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
Switched Mode Power Supply Reference Manual
Important User Information
Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize
themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to
be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be
impaired.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use
or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for
actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software
described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is
prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
These labels may also be on or inside the equipment to provide specific precautions.
The following icon may appear in the text of this document.
WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment,
which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).
Identifies information that is useful and can help to make a process easier to do or easier to understand.

Rockwell Automation Publication 1606-RM028A-EN-P - September 2021 1
Table of Contents
Terminology and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Catalog Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
AC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Input Inrush Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
DC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Hold-up Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
DC-OK Relay Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Shutdown Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Control of Output Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Efficiency and Power Losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Front Side and User Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Terminals and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Lifetime Expectancy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mean Time Between Failure (MTBF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electromagnetic Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Protection Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Safety Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Dielectric Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Certifications and Standards Compliance . . . . . . . . . . . . . . . . . . . . . . . . . 17
Approximate Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Repetitive Pulse Loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Peak Current Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Back-feeding Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Inductive and Capacitive Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Charging of Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Output Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
External Input Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parallel Use to Increase Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parallel Use for Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Daisy Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Series Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Operation on Two Phases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Use in a Tightly Sealed Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Mounting Orientations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
Table of Contents
Notes:

Rockwell Automation Publication 1606-RM028A-EN-P - September 2021 3
Terminology and
Abbreviations
All values in this document are specified under the following conditions unless
otherwise noted:
• 48V, 20 A, 230V AC input voltage
• 25 °C (77 °F) ambient temperature
• After a 5 minutes run-in time
Product Overview
Product features include:
• AC 100…240V wide-range input
• Width 125 mm (4.9 in.)
• 95.0% full load and excellent partial load efficiencies
• 50% BonusPower, 1440 W for up to 4 s
Terms Descriptions
PE The abbreviation for Protective Earth. PE has the same meaning as the symbol.
The symbol for Protective Earth.
Earth, Ground This document uses the term “earth”, which is the same as the U.S. term “ground”.
AC 230V A value that is displayed with the AC or DC before the value represents a nominal voltage with standard tolerances included. For example, DC 12V describes a 12V
battery, no matter if it is full (13.7V) or flat (10V).
230V AC A value with the unit (V AC or V DC) at the end is a momentary value without any
additional tolerances included.
50 Hz versus 60 Hz Unless otherwise stated, AC 230V parameters are valid at 50 Hz mains frequency.
Nom Indicates a nominal value.
Typ Indicates a typical value.
—A dash alone in a table cell indicates that there is no information to be included in that
cell.
Figure 1 - 1606-XLS960F
The 1606-XLS960F is a high-efficiency
DIN rail power supply unit, which uses
a synchronous rectification, a
bridgeless PFC circuit, and additional
design details to achieve a compact
size.
Large power reserves of 150% and built-
in large sized output capacitors
support the starting of heavy loads,
such as DC motors or capacitive loads.
Therefore, a unit from a lower wattage
class can be used.
The 1606-XLS960F power supply unit
has a high immunity to transients and
power surges, and has low
electromagnetic emissions.
The integrated input fuse, near-zero
input inrush current, and diagnostic
indicators simplify installation and
usage.
The 1606-XLS960F power supply unit
features a large international approval
package for various applications.

4Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
• 55 A high peak current for 10 ms, for easy fuse tripping
• Safe HiccupPLUS overload mode
• Active PFC (Power Factor Correction)
• Negligible low-input inrush current surge
• Full power -25…+60 °C (-13…+140 °F)
• Current sharing feature for parallel use
• Remote control of output voltage
•DC-OKrelaycontact
•Shut-downinput
• ATEX and IECEx approved
Specifications
Catalog Numbers
Attributes Values Notes
Output voltage DC 48V Nominal
Adjustment range 48…54V DC —
Output current 20…17.8 A Continuous
30…26.7 A Short term (4 s)
Output power 960 W Continuous
1440 W Short term (4 s)
Output ripple <150 mVpp 20 Hz…20 MHz
Input voltage AC 100…240V -15/+10%
Mains frequency 50…60 Hz ±6%
AC input current 8.6/4.5 A At 120/230V AC
Power factor 0.99/0.99 At 120/230V AC
AC inrush current 17/11 A peak At 120/230V AC
Efficiency 93.9/95.0% At 120/230V AC
Losses 62.4/50.5 W At 120/230V AC
Temperature range -25…+70 °C
(-13…+158 °F) Operational
Derating 24 W/1 °C
(24 W/1.8 °F) (1)
(1) Between 85…90V AC. See Environment on page 15.
60…70 °C (140…158 °F)
Hold-up time 27/27 ms At 120/230V AC
Dimensions 125 x 124 x 127 mm
(4.92 x 4.88 x 5 in.) W x H x D
Weight 1900 g (4.2 lb) —
Cat. No. Descriptions
1606-XLS960F Power supply
(48…54V standard unit)
1606-XLC Wall mount bracket
1606-XLSBUFFER48 Buffer unit
1606-XLSRED40HF Redundancy module

Rockwell Automation Publication 1606-RM028A-EN-P - September 2021 5
AC Input
Attributes Values Notes
Input voltage Nom AC 100…240V Suitable for TN, TT, and IT mains networks
Input voltage range
— 90…264V AC Continuous operation
—85…90VAC
<55 °C (131 °F) ambient temperature
continuously allowed
>55 °C (131 °F) ambient temperature short term
or with output derating, see Figure 27 on page 16
— 60…85V AC Full power for up to 200 ms
— 0…85V AC No damage to the unit
— 264…300V AC <500 ms
Allowed voltage L or N to earth Max 300V AC Continuous, IEC 62103
Input frequency Nom 50…60Hz ±6%
Turn-on voltage Typ 80V AC Steady-state value, load independent, see
Figure 2
Shut-down voltage Typ 74V AC Steady-state value, load independent, see
Figure 2
External input protection — See External Input Protection on page 24.
Attributes Values Notes
AC 100V AC 120V AC 230V
Input current Typ 10.5 A 8.6 A 4.5 A At 48V, 20 A, see Figure 4
Power factor (1)
(1) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.
Typ 0.99 0.99 0.99 At 48V, 20 A, see Figure 5
Crest factor (2)
(2) The crest factor is the mathematical ratio of the peak value to RMS value of the input current waveform.
Typ 1.47 1.53 1.56 At 48V, 20 A
Startup delay Typ 800 ms 750 ms 700 ms See Figure 3
Rise time Typ 16 ms 16 ms 16 ms At 48V, 20 A, resistive load, 0 mF, see Figure 3
Typ 55 ms 55 ms 55 ms At 48V, 20 A, resistive load, 20 mF, see Figure 3
Turn-on overshoot Max 100 mV 100 mV 100 mV See Figure 3
Figure 2 - Input Voltage Range Figure 3 - Turn-on Behavior, Definitions
Figure 4 - Input Current Versus Output Load at 48V Figure 5 - Power Factor Versus Output Load at 48V
Turn-on
85
Rated Input Range
VIN
POUT
74 264V AC
Shut-down
80
Start-up
Delay Rise Time
Overshoot
-5%
Output
Voltage
Input
Voltage
20 A
2 4 6 8 10 12 14 16 18
0
2
4
6
8
10
12 A
Input Current, Typ
A: 100 V AC
B: 120 V AC
C: 230 V AC
A
B
C
Output Current
Power Factor, Typ
2 4 6 8 10 12 14 16 18 20 A
0.75
0.8
0.85
0.9
0.95
1.0
Output Current
A: 100V AC
B: 120V AC
C: 230V AC
A
B
C

6Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
Input Inrush Current The power supply unit is equipped with an active inrush current limitation
circuit, which limits the input inrush current after turn-on to a negligible low
value. The input current is smaller than the steady state input current.
DC Input Do not operate this power supply unit with DC-input voltage. Use the
1606-XLE480FP-D unit instead. It can be necessary to run two
1606-XLE480EP-D units in parallel.
Output
Attributes Values Notes
AC 100V AC 120V AC 230V
Inrush current (1)
(1) The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.
Max 25 Apeak 22 Apeak 16 Apeak
Over the entire temperature range; mains
interruptions >1 s
Typ 20 Apeak 17 Apeak 11 Apeak
Inrush energy Max 5 A2s5A
2s5A 2s
Figure 6 - Typical Turn-on Behavior at Nominal
Load - 25 °C (77 °F) Ambient
Temperature
Input Current 5 A/DIV
Input
Output 48V DC
230V AC
100 ms/DIV
Attributes Values Notes
Output voltage Nom DC 48V —
Adjustment range — 48…54V DC Guaranteed
Max 56V DC (1) At clockwise end position of potentiometer
Factory setting
Typ 48.0V DC ±0.2%, at full load, cold unit, in Single Use mode
Typ 46.0V DC ±0.5%, at full load, cold unit, in Parallel Use mode
Typ 48.0V DC At no load, cold unit, in Parallel Use mode
Line regulation Max 10 mV 85…300V AC
Load regulation
Max 50 mV In Single Use mode: static value, 0 A 20 A, see Figure 7 on
page 7
Typ 2000 mV In Parallel Use mode: static value, 0 A 20 A, see Figure 8 on
page 7
Ripple and noise voltage Max 150 mVpp 20 Hz…20 MHz, 50 Ω
Output current
Nom 20 A Continuously available at 48V, see Figure 7 on page 7 and Figure 8
on page 7
Nom 17.8 A Continuously available at 54V, see Figure 7 on page 7 and Figure 8
on page 7
Nom 30 A Short-term available BonusPower (2), at 48V for typical 4 s, see
Figure 7 on page 7 and Figure 8 on page 7
Nom 26.7 A Short-term available BonusPower (2), at 54V for typical 4 s, see
Figure 7 on page 7 and Figure 8 on page 7
Typ 55 A
Up to 10 ms, output voltage stays above 40V, see Figure 10 on
page 7. This peak current is available once every second. See Peak
Current Capability on page 22.

Rockwell Automation Publication 1606-RM028A-EN-P - September 2021 7
Output power Nom 960 W Continuously available at 48…54V
Nom 1440 W (2) Short-term available BonusPower (2) at 48…54V
BonusPower time Typ 4 s Duration until the output voltage dips, see Figure 11 on page 8
BonusPower recovery time Typ 7 s Overload free time to reset power manager, see Figure 12 on
page 8
Overload behavior —Continuous current Output voltage >40V DC, see Figure 7
—HiccupPLUS mode (3) Output voltage <40V DC, see Figure 7
Short-circuit current
Min 30 A (4) Load impedance 50 mΩ, see Figure 9
Max 35 A (4) Load impedance 50 mΩ, see Figure 9
Max 11.5 A Average (RMS) current, load impedance 50 mΩ, see Figure 9
Typ 62 A Up to 10 ms, load impedance <10 mΩ, see Figure 10
Output capacitance Typ 3700 µF Included in the power supply
(1) Max output voltage that can occur at the clockwise end position of the potentiometer, due to tolerances. It is not a
guaranteed value that can be achieved. The typical value is about 55V.
(2) BonusPower, short-term power capability (up to typ 4 s): The power supply unit is designed to support loads with a higher
short-term power requirement without damage or shutdown. The short-term duration is hardware controlled by an output
power manager. This BonusPower is repeatedly available. See Repetitive Pulse Loading on page 20. If the power supply unit is
loaded longer with the BonusPower than shown in Figure 11 on page 8, the maximum output power is automatically reduced
to 960 W. If the power requirement is continuously above 960 W and the voltage falls below approximately 40V (due to the
current regulating mode at overload), the unit shuts off and makes periodical restart attempts. This behavior is called
HiccupPLUS mode, see Figure 9. If the voltage is above 40V, the unit continuously delivers current.
(3) For up to 4 s of overloading, the power supply unit delivers continuous output current. After overloading, the output power
reduces to nearly zero for approximately 17 s before a new start attempt is automatically performed. If the overload is
cleared, the device operates normally. If the overload still exists, the output current is delivered for 2…4 s (depending on the
overload) again followed by a 17 s rest time. This cycle repeats as long as the overload exists. During the off-period, a small
rest voltage and a rest current are present on the output.
(4) Discharge current of output capacitors is not included.
Attributes Values Notes
Figure 7 - Output Voltage Versus Output Current in
Single Use Mode, Typ Figure 8 - Output Voltage Versus Output Current in Parallel Use Mode, Typ
Figure 9 - Short-circuit on Output, HiccupPLUS Mode,
Typ Figure 10 - Dynamic Overcurrent Capability, Typ
Output Voltage
0
0 5 10 15 20
8
16
24
56V
32
40
48
30
25 35 A
Output Current
Adjustment Range
Hiccup
Mode
AB
A
B
Short-term (4 s)
then switching
to curve
Continuously
available
A
A B
Output Voltage (Parallel Use, Typ)
42V 01020
44V
46V
48V
56V
50V
52V
54V
30 A
25155
Adjustment Range
Factory
setting
Continuously
allowed Bonus
Power
Output Current
gy
Output
Current
0
35 A
17 s 17 s
17 s 2 s 2 s
2 s
t
Short -circuit Normal
operation
Normal
operation
g
Output Voltage (dynamic behavior, < 10 ms)
0
0
8
16
24
54V
32
40
48
70 A30 6010 20 40 50
Adjustment
Range
Output Current

8Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
The BonusPower is available when power comes on and after the end of an
output short circuit or output overload.
Hold-up Time
Figure 11 - Bonus Time Versus Output Power Figure 12 - BonusPower Recovery Time
g
max
Bonus Time
0
100 120 130 140 150 170%
1
2
3
4
5 s
110 160
Output Power
min
Power
Demand
100%
t
t
Limitation by
Power Manager
Output
Voltage
Bonus Power disabled
Bonus
Time
Recovery Time
Figure 13 - BonusPower After Input Turn-on Figure 14 - BonusPower After Output Short
100%
Output
Voltage
Input
Voltage
Bonus
Power
Output
Power
150%
Short of
Output
100%
Output
Voltage
Bonus
Power
Output
Power
150%
Attributes Values Notes
AC 100V AC 120V AC 230V
Hold-up Time
Typ 54 ms 54 ms 54 ms At 48V, 10 A, see Figure 15
Min 45 ms 45 ms 45 ms
Typ 27 ms 27 ms 27 ms At 48V, 20 A, see Figure 15
Min 23 ms 23 ms 23 ms
Figure 15 - Hold-up Time Versus Input Voltage Figure 16 - Shutdown Behavior Definitions
0
10
20
30
40
60 ms
90 120 155 190 230V AC
Input Voltage
50
Hold-up Time
48V, 20 A, typ
48V, 10 A, min
48V, 10 A, typ
48V, 20 A, min
-5%
Hold-up Time
Zero Transition
Output
Voltage
Input
Voltage

Rockwell Automation Publication 1606-RM028A-EN-P - September 2021 9
DC-OK Relay Contact This feature monitors the output voltage that the power supply unit produces.
It is independent of any back-fed voltage from a unit that is connected in
parallel to the power supply unit output.
Shutdown Input This feature allows a switch-off of the output of the power supply unit with a
signal switch or an external voltage. The shutdown occurs immediately, while
the turn-on is delayed up to 350 ms. In a shut-down condition, the output
voltage is <4V and the output power is <0.5 W.
The voltage between different minus pole output terminals must be below 1V
when units are connected in parallel. In a series operation of multiple power
supply units, only wiring option A with individual signal switches is allowed.
Action Notes
Contact closes Once the output voltage reaches 90% of the adjusted output voltage
Contact opens Once the output voltage dips more than 10% below the adjusted output voltage. Short dips are extended
to a signal length of 250 ms. Dips shorter than 1 ms are ignored.
Contact recloses Once the output voltage exceeds 90% of the adjusted voltage
Contact ratings Max 60V DC at 0.3 A, 30V DC at 1 A, 30V AC at 0.5 A Resistive load
Min 1 mA at 5V DC Min permissible load
Isolation voltage See Dielectric Strength on page 16.
Figure 17 - DC-OK Relay Contact Behavior
gy
250 ms
0.9* V
ADJ
1 ms
<
10%
open
=
OUT
VV
ADJ
openclosed closed
>
1 ms
IMPORTANT Option C requires a current sink capability of the voltage source. Do not
use a blocking diode.
The shut-down function has no safety feature included.
Figure 18 - Activation of the Shut-down Input
g
15
16
OFF: linked
ON : open
Shut-
down
Input
Option A:
15
16
OFF: I > 0.3 mA
ON : I < 0.1 mA
Shut-
down
Input
Option B:
-
(via open
collector)
NC
I
15
16
OFF: U < 1V
ON : U = 4…29V
Shut-
down
Input
Option C:
-
(via external
voltage
+
U
NC

10 Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
Remote Control of Output
Voltage
You can use the shut-down input to adjust the output voltage remotely,
typically between 44…54V DC. All other functions of the shut-down input
remain the same.
The control voltage is referenced to the main ground (negative output voltage).
.
To set the shutdown input to adjust the output voltage remotely:
1. Set the unit into Single Use mode.
2. Set the output voltage adjustment (48…54V) to the maximum desired
voltage.
3. Apply a control voltage to reduce the output voltage.
Efficiency and Power
Losses
Figure 19 - Remote Control of the Output Voltage Figure 20 - Applying the Control Voltage
Output Voltage
24
05
28
32
36
56V
40
44
52
Control Voltage
48
10V
Potentiometer:
54V setting
48V setting
15
16
Control
Voltage
Shut-
down
Input
-
+
NC
Attributes Values Notes
AC 100V AC 120V AC 230V
Efficiency Typ 93.5% 93.9% 95.0% At 48V, 20 A
Average efficiency (1)
(1) An assumption for a typical application where the power supply unit is loaded with 25% of the nominal load for 25% of the
time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time, and with
100% of the nominal load for the rest of the time.
Typ 92.9% 93.3% 93.9% 25% at 5 A, 25% at 10 A, 25% at 15 A, 25% at 20 A
Power losses
Typ 3.6 W 3.5 W 3.3 W With activated shut-down
Typ 13.5 W 12.8 W 12.8 W At 48V, 0 A (no load)
Typ 35.6 W 34.0 W 30.1 W At 48V, 10 A (half load)
Typ 66.7 W 62.4 W 50.5 W At 48V, 20 A (full load)
Figure 21 - Efficiency Versus Output Current at 48V,
Typ Figure 22 - Losses Versus Output Current at 48V, Typ
y
Eciency
4 6 8 10 12 14 16 18 20 A
88
89
90
91
92
93
Output Current
94
95
96%
120V AC
100V AC
230V AC
Power Losses
0 2 4 6 8 10 12 14 20 A
10
0
30
40
50
70
80 W
120V AC
100V AC
230V AC
16 16
60
20
Output Current

Rockwell Automation Publication 1606-RM028A-EN-P - September 2021 11
Functional Diagram Figure 25 - Functional Diagram
Figure 23 - Efficiency Versus Input Voltage at 48V,
20 A, Typ Figure 24 - Losses Versus Input Voltage at 48V, 20 A, Typ
Eciency
85 120 155 190 225 260V AC
89
90
91
92
Input Voltage
93
94
95%
Power Losses
20
30
40
50
60
70
80 W
85 120 155 190 225 260V AC
Input Voltage
+
+
-
-
V
OUT
DC-OK
Contact
Output
Overvoltage
Protection
Bridgeless
PFC
Converter
Input Fuse
Input Filter
Inrush Limiter
Output
Voltage
Regulator
Power
Converter
Output
Filter
DC-OK
Relay
Output
Voltage
Monitor
Output
Power
Manager
Temperature
Shutdown
Overload
LED
DC-ok
LED
N
L
Single /
Parallel
Shut-down
Input and
Remote
Control
Shutdown
13
14
15
16
Event Datalogger

12 Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
Front Side and User
Elements
Figure 26 - Front Side User Elements
A
Input terminals (screw terminals)
N, L Line input
…PE (protective earth) input
BOutput terminals (screw terminals, two pins per pole) + Positive output
- Negative (return) output
C
Parallel Use/Single Use selector
Set the jumper to Parallel Use when the power supply units are
connected in parallel to increase the output power. To achieve a
sharing of the load current between the individual units, the Parallel
Use regulates the output voltage in such a manner that the voltage at
no load is approximately 4% higher than at nominal load. See Parallel
Use to Increase Output Power on page 24. A missing jumper is equal to
a Single Use mode.
DOutput voltage potentiometer Multi-turn potentiometer; open the flap to set the output voltage.
Factory setting is 48V at full output current, Single Use mode.
EDC-OK status indicator (green) Shows on when the voltage on the output terminals is >90% of the
adjusted output voltage.
F
Overload status indicator (red)
• Shows on when the voltage on the output terminals is <90% of the
adjusted output voltage, or if there is a short circuit in the output.
• Flashes when the shutdown is activated or the unit is switched off
due to over-temperature.
• Input voltage is required.
GDC-OK relay contact The DC-OK relay contact is synchronized with the DC-OK status
indicator. See DC-OK Relay Contact on page 9.
H
Shutdown and Remote Control input
Allows the power supply unit to be shut down; can be activated with a
switch contact or an external voltage. The remote control input allows
for adjustment of the output voltage between 44…54V. See Shutdown
Input on page 9 and Remote Control of Output Voltage on page 10.
QUALITY
NL
Input
AC 200-240V
POWER SUPPLY
1606-XLS
1606-XLS960F
18WM
IND.CONT.EQ.
Shut-
Down
Parallel Use
Single Use
13
14
16
15
DC ok
Allen-Bradley
DC ok
OVL
48-
54V
DC 48V / 20A
++
B
A
G
H
C
D
E
F
Indicators (LEDs) Overload LED DC-OK LED DC-OK Contact
Normal mode OFF ON Closed
During BonusPower OFF ON Closed
Overload (Hiccup mode) Flashing OFF Open
Output short circuit Flashing OFF Open
Temperature shut-down Flashing OFF Open
Active shut-down input Flashing OFF Open
No input power OFF OFF Open

Rockwell Automation Publication 1606-RM028A-EN-P - September 2021 13
Terminals and Wiring The terminals are IP20 fingersafe constructed and suitable for field and
factory wiring.
Wiring instructions:
• Use the appropriate copper cables that are designed for the minimum
operating temperatures:
- 60 °C (140 °F) for an ambient temperature up to 45 °C (113 °F).
- 75 °C (167 °F) for an ambient temperature up to 60 °C (140 °F).
- 90 °C (194 °F) for an ambient temperature up to 70 °C (158 °F).
• Follow national installation codes and installation regulations.
• Confirm that all strands of a stranded wire enter the terminal
connection.
• Do not use the unit without PE connection.
• Unused terminal compartments must be securely tightened.
• Ferrules are allowed.
Lifetime Expectancy
Mean Time Between Failure
(MTBF)
MTBF is calculated according to statistical device failures, and indicates the
reliability of a device. It is the statistical representation of the likelihood of a
unit to fail; it does not necessarily represent the life of a product. An MTBF
value of, for example, 1,000,000 hr means that statistically one unit fails every
100 hours if 10,000 units are installed in the field. However, the running time
of individual failed units cannot be determined.
Attributes Values
Input Output DC-OK, Shutdown
Type Screw termination Screw termination Spring clamp termination
Solid wire 0.5…6 mm20.5…16 mm20.15…1.5 mm2
Stranded wire 0.5…4 mm20.5…10 mm20.15…1.5 mm2
American Wire Gauge 20…10 AWG 22…8 AWG 26…14 AWG
Max wire diameter 2.8 mm (0.11 in.) (1)
(1) Includes ferrules.
5.2 mm (0.2 in.) (1) 1.5 mm (0.06 in.) (1)
Wire stripping length 7 mm (0.28 in.) 12 mm (0.5 in.) 7 mm (0.28 in.)
Screwdriver 3.5 mm (0.138 in.), slotted
or cross-head, No 2
3.5 mm (0.138 in.) or 5 mm
(0.2 in.), slotted or
cross-head, No 2
3 mm (0.12 in.), to open
the spring
Recommended torque 1 N•m (9 lb•in) 2.3 N•m (20.5 lb•in) —
Attribute Values Notes
AC 100V AC 120V AC 230V
Calculated lifetime expectancy (1)
(1) The minimum operating hours (service life). The lifetime expectancy of the built-in electrolytic capacitors determines the
service life. Lifetime expectancy is specified in operational hours and is calculated according to the manufacturer
specification of the capacitor. The manufacturer of the electrolytic capacitors lists a maximum life of up to 15 years (131,400
hr). Any number that exceeds this value is a calculated theoretical lifetime, which can be used to compare devices.
299,000 hr (1) 305,000 hr (1) 327,000 hr (1) At 48V, 10 A and 25 °C (77 °F)
106,000 hr 108,000 hr 116,000 hr At 48V, 10 A and 40 °C (104 °F)
180,000 hr (1) 193,000 hr (1) 253,000 hr (1) At 48V, 20 A and 25 °C (77 °F)
64,000 hr 68,000 hr 90,000 hr At 48V, 20 A and 40 °C (104 °F)

14 Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
Electromagnetic
Compatibility
The power supply unit is suitable for applications in an industrial environment
and in a residential, commercial, and light industry environment without any
restrictions.
Attribute Values Notes
AC 100V AC 120V AC 230V
MTBF SN 29500, IEC 61709 491,000 hr 481,000 hr 537,000 hr At 48V, 20 A and 25 °C (77 °F)
274,000 hr 269,000 hr 300,000 hr At 48V, 20 A and 40 °C (104 °F)
MTBF MIL HDBK 217F
Ground Benign
170,000 hr 171,000 hr 183,000 hr At 48V, 20 A and 25 °C (77 °F);
Ground Benign GB25
126,000 hr 127,000 hr 137,000 hr At 48V, 20 A and 40 °C (104 °F);
Ground Benign GB40
MTBF MIL HDBK 217F
Ground Fixed
36,000 hr 36,000 hr 39,000 hr At 48V, 20 A and 25 °C (77 °F);
Ground Fixed GF25
27,000 hr 27,000 hr 30,000 hr At 48V, 20 A and 40 °C (104 °F);
Ground Fixed GF40
EMC Immunity According to Generic Standards EN 61000-6-1 and EN 61000-6-2
Attributes Standards Values Criteria (1)
(1) Criterion A: Power supply shows normal operation behavior within the defined limits.
Criterion B: Output voltage dips between 48…42V for 5 ms.
Criterion C: Temporary loss of function is possible. The power supply unit can automatically shut down and restart
without damage or hazards to itself.
Electrostatic discharge EN 61000-4-2 Contact discharge 8 kV Criterion A
Air discharge 15 kV Criterion A
Electromagnetic RF field EN 61000-4-3 80 MHz…2.7 GHz 20V/m Criterion A
Fast transients (burst) EN 61000-4-4
Input lines 4 kV Criterion A
Output lines 2 kV Criterion A
Signal lines (coupling clamp) 2 kV Criterion A
Surge voltage on input EN 61000-4-5 L N2kV
Criterion A
LPE, N PE 4 kV Criterion A
Surge voltage on output EN 61000-4-5 + -1 kV Criterion A
+ / -  PE 1 kV Criterion A
Surge voltage on signal lines EN 61000-4-5 DC-OK signal PE 1 kV Criterion A
Shut-down input PE Not relevant due to wire length (2)
(2) Do not use longer wires than 30 m (98.42 ft) for the shutdown input or use an additional protection.
Conducted disturbance EN 61000-4-6 0.15…80 MHz 20V Criterion A
Mains voltage dips EN 61000-4-11
0% of 100V AC 0V AC, 20 ms Criterion A
40% of 100V AC 40V AC, 200 ms Criterion C
70% of 100V AC 70V AC, 500 ms Criterion A
0% of 200V AC 0V AC, 20 ms Criterion A
40% of 200V AC 80V AC, 200 ms Criterion A
70% of 200V AC 140V AC, 500 ms Criterion A
Voltage interruptions EN 61000-4-11 0% of 200V AC (=0V) 5000 ms Criterion C
Voltage sags SEMI F47
Dips on the input voltage according to SEMI F47 standard
80% of 120V AC (96V AC) 1000 ms Criterion A
70% of 120V AC (84V AC) 500 ms Criterion A
50% of 120V AC (60V AC) 200 ms Criterion A
Powerful transients VDE 0160 Over entire load range 750V, 1.3 ms Criterion B (3)
(3) Criterion A is fulfilled for output current up to 15 A.

Rockwell Automation Publication 1606-RM028A-EN-P - September 2021 15
The power supply unit has four converters with four different switching
frequencies, which are included. One frequency is nearly constant; others are
input voltage and load dependent.
Environment
EMC Emission According to Generic Standards EN 61000-6-3 and EN 61000-6-4
Attributes Standards Notes
Conducted emission input lines EN 55011, EN 55032, FCC Part 15,
CISPR 11, CISPR 32 Class B
Conducted emission output lines IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 10 dB higher than average limits for DC power port
according to EN 61000-6-3 (1)
(1) Restrictions apply for applications in residential, commercial, and light-industrial environments where local DC power
networks, according to EN 61000-6-3, are involved. No restrictions for all kinds of industrial applications.
Radiated emission EN 55011, EN 55032 Class B
Harmonic input current EN 61000-3-2 Fulfilled for class A equipment
Voltage fluctuations, flicker EN 61000-3-3 Fulfilled (2)
(2) Tested with constant current loads, non-pulsing.
This device complies with FCC Part 15 rules.
Operation is subjected to following conditions:
• This device must not cause harmful interference.
• This device must accept any interference received, including interference that can cause undesired operation.
Switching Frequency
Switching Frequency Values Notes
1 105 kHz Resonant converter, nearly constant
2 1...150 kHz Boost converter, input voltage, and load dependent
3 1...100 kHz PFC converter, input voltage, and load dependent
4 25...45 kHz Auxiliary converter, input voltage, and load dependent
Attributes Values Notes
Operational temperature (1)
(1) The same as the ambient temperature and is defined as the air temperature 20 mm (0.79 in.) below the unit.
-25…+70 °C (-13…+158 °F) Reduce output power according to Figure 27 on page 16
Storage temperature -40…+85 °C (-40…+185 °F) For storage and transportation
Output derating 24 W/1 °C (24 W/1.8 °F) Between 60…70 °C (140…158 °F)
Humidity (2)
(2) Do not energize while condensation is present.
5…95% r.H. IEC 60068-2-30
Vibration sinusoidal 2…17.8 Hz: ±1.6 mm (0.063 in.) (3)
17.8…500 Hz: 1 g (0.04 oz)
2 hours/axis
(3) Higher levels are allowed when using the 1606-XLC wall mounting bracket.
IEC 60068-2-6
Shock
15 g (0.53 oz) 6 ms,
10 g (0.35 oz) 11 ms (3)
3 bumps/direction,
18 bumps in total
IEC 60068-2-27
Altitude
0…2000 m (0…6560 ft) Without any restrictions
2000…6000 m (6560…20,000 ft) Reduce output power or ambient temperature, see Figure 28
on page 16
IEC 62103, EN 50178, overvoltage category II
Altitude derating 60 W/1000 m (7.5 W/3280 ft), or
5 °C/1000 m (9 °F/3280 ft) >2000 m (6500 ft), see Figure 28 on page 16
Overvoltage category III IEC 62103, EN 50178, altitudes up to 2000 m (6500 ft)
II Altitudes from 2000…6000 m (6500…20,000 ft)
Degree of pollution 2 IEC 62103, EN 50178, not conductive

16 Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
Protection Features
Safety Features
Dielectric Strength The output voltage is floating and has no ohmic connection to the ground. The
manufacturer conducts type and factory tests. Field tests can be conducted
with the appropriate test equipment, which applies the voltage with a slow
ramp (2 s up and 2 s down). Connect all input terminals together and connect
all output poles before conducting the test. When testing, set the cutoff
current settings to the values in the following table.
Figure 27 - Output Current Versus Ambient
Temperature Figure 28 - Output Current Versus Altitude
Allowed Output Current at 48V
0
-25 0 20 40 70 °C
5
10
15
20
25
30 A
60
Ambient Temperature
A
B
A: 90…264V AC
B: 85…90V AC
short-term (4 s)
continuous
0
0 2000 4000 6000 m
5
10
15
20
25
30 A
continuous
Altitude
A: Tamb <60 °C
B: Tamb <50 °C
C: Tamb <40 °C
ABC
short-term (4 s)
Allowed Output Current at 48V
Attributes Values Notes
Output protection Electronically protected against overload, no-load, and short-circuits (1)
(1) An audible noise occurs if there is a protection event.
Output overvoltage protection 58.8V DC typ If there is an internal power supply anomaly, a redundant circuit limits the maximum output voltage. The output shuts down and automatically
attempts to restart.
60V DC max
Degree of protection IP 20 EN/IEC 60529 (2)
(2) For use in a controlled environment according to CSA 22.2 No 107.1-01.
Penetration protection >5 mm (0.2 in.) For example, screws and small parts
Over-temperature protection Yes Output shutdown with automatic restart
Input transient protection MOV Metal Oxide Varistor
Internal input fuse Included Not user-replaceable
Attributes Values Notes
Input/output separation (1)
(1) Double or reinforced insulation.
SELV IEC/EN 60950-1
PELV IEC/EN 60204-1, EN 50178, IEC 62103, IEC 60364-4-41
Class of protection I PE connection not required.
Isolation resistance >100 MΩInput to output, 500V DC
PE resistance <0.1 Ω—
Touch current
(leakage current)
Typ 0.39 mA/1.0 mA 100V AC, 50 Hz, TN-, TT-mains/IT-mains
Typ 0.56 mA/1.43 mA 120V AC, 60 Hz, TN-, TT-mains/IT-mains
Typ 0.90 mA/2.25 mA 230V AC, 50 Hz, TN-, TT-mains/IT-mains
Max 0.50 mA/1.21 mA 110V AC, 50 Hz, TN-, TT-mains/IT-mains
Max 0.71 mA/1.73 mA 132V AC, 60 Hz, TN-, TT-mains/IT-mains
Max 1.18 mA/2.28 mA 264V AC, 50 Hz, TN-, TT-mains/IT-mains

Rockwell Automation Publication 1606-RM028A-EN-P - September 2021 17
Certifications and
Standards Compliance
Figure 29 - Dielectric Strength Test or Setting Time A B C D
Type test 60 s 2500V AC 3000V AC 500V AC 500V AC
Factory test 5 s 2500V AC 2500V AC 500V AC 500V AC
Field test 5 s 2000V AC 2000V AC 500V AC 500V AC
Cutoff current setting — >20 mA >20 mA >40 mA >1 mA
To fulfill the PELV requirements according to
EN60204-1 § 6.4.1, we recommend that you connect
the protective earth system to the + pole, the – pole,
or any other part of the output circuit. This
connection helps to avoid situations in which a load
starts unexpectedly or cannot be switched off when
unnoticed earth faults occur.
AD
C
B
B
L
Input DC-OK
13
14
Earth, PE Output
15/16
+/-
N
Shut-down
(a)
When input to DC-OK is tested, confirm that the max voltage between DC-OK
and the output is not exceeded (column D). We recommend connecting DC-OK
pins and the output pins together when performing the test.
(a)
Names Symbols Notes (1)
UL 508
UL Certificate
Listed equipment for category NMTR - Industrial Control
Equipment
Applicable for US and Canada
UL 60950-1
UL Certificate
Recognized component for category QQGQ - Information
Technology Equipment
Applicable for US and Canada
ATEX
Agency Certificate (Bureau Veritas) (1)
EN 60079-0 Explosive atmospheres - General requirements
EN 60079-7, EN 60079-15 Equipment protection by type of
protection "e" and "n"
Temperature Code: T3
Type of Protection: nA nC
IECEx
IECEx Certificate (1)
IEC 60079-0 Explosive atmospheres - General requirements
IEC 60079-7, IEC 60079-15 Equipment protection by type of
protection "e" and "n"
Temperature Code: T3
Type of Protection: nA nC
Class I Div 2
CSA Certificate
Power Supplies for Hazardous Location
Applicable for Canada and US
CSA Class: 5318-01 (Canada), 5318-81 (US)
Temperature Code: T3
Groups: A, B, C, and D
Marine (DNV GL)
DNV-GL Certificate
DNV-GL Type approved product
Temperature: Class D
Humidity: Class B
Vibration: Class C
EMC: Class A
Enclosure: Class A
IND. CONT. EQ.

18 Rockwell Automation Publication 1606-RM028A-EN-P - September 2021
Approximate Dimensions
and Weight
EC Declaration of Conformity
The CE marking indicates conformance with the following:
– EMC Directive
– Low Voltage Directive (LVD)
–RoHSdirective
REACH Directive Manufacturer's Statement EU-Directive regarding the Registration, Evaluation,
Authorization, and Restriction of Chemicals
EAC TR Registration Registration for the Eurasian Customs Union market (Russia,
Kazakhstan, Belarus)
(1) Product certification information (including Certificates and Declarations of Conformity) can be found at rok.auto/certifications.
Names Symbols Notes (1)
Attributes Values and Descriptions
Width 125 mm (4.92 in.)
Height 124 mm (4.88 in.)
Depth 127 mm (0.5 in.) (1)
(1) Add the DIN rail height to the unit depth to calculate the total required installation depth.
Weight 1900 g (4.2 lb)
DIN rail Use 35 mm (1.38 in.) DIN rails according to EN 60715 or EN 50022 with a height of
7.5 mm (0.30 in.) or 15 mm (0.59 in.).
Housing material Aluminum body, steel cover
Installation clearances
Top: 40 mm (1.57 in.)
Bottom: 20 mm (0.79 in.)
Left/right: 5 mm (0.2 in.) (2)
(2) Increase the 5 mm (0.2 in.) to 15 mm (0.59 in.) in case the adjacent device is a heat source. When the
device is permanently loaded with less than 50%, the 5 mm (0.2 in.) can be reduced to zero.
Figure 30 - Front View [mm (in.)] Figure 31 - Side View [mm (in.)]
40 (1.57) 19.1 (0.75)
40.5 (1.54)75.4 (2.97)
Width 125 (4.92)
DIN Rail Depth
Width 127 (5.0)
Height 124 (4.88)