Rockwell Automation 1606-XLE96B-2 User manual

Reference Manual
Bulletin 1606 Switched Mode Power Supplies
Catalog Number: 1606-XLE96B-2
Index
egaPegaP
1. Intended Use .......................................................3
2. Installation Requirements ...................................3
3. AC-Input...............................................................4
4. DC-Input...............................................................5
5. Input Inrush Current ...........................................5
6. Output .................................................................6
7. Hold-up Time .......................................................7
8. Efciency and Power Losses................................8
9. Functional Diagram.............................................9
10. Front Side and User Elements.............................9
11. Terminals and Wiring........................................10
12. Reliability ...........................................................10
13. EMC ....................................................................11
14. Environment ......................................................12
15. Protection Features ...........................................13
16. Safety Features ..................................................13
17. Dielectric Strength ............................................13
18. Certications .....................................................14
19. Environmental Compliance ............................. 14
20. Physical Dimensions and Weight ..................... 15
21. Accessories ........................................................ 16
22. Application Notes ............................................. 17
22.1. Peak Current Capability ...........................17
22.2. Back-feedingLoads ..................................17
22.3. ChargingBatteries ...............................18
22.4. External Input Protection .........................18
22.5. Inductive and Capacitive Loads ................18
22.6. Parallel Use to Increase Output Power ....19
22.7. Parallel Use for Redundancy ....................19
22.8. Daisy Chainingof Outputs .......................20
22.9. Series Operation .......................................20
22.10. Use in a Tightly Sealed Enclosure ............20
22.11. MountingOrientations ............................21
•PEand symbol—PE is the abbreviation for Protective Earth and has the same meaning as the symbol .
•Earth,Ground—This document uses the term “earth” which is the same as the U.S. term “ground”.
• T.b.d.—To be defined, value or description will follow later.
• AC 230V—A figure displayed with the AC or DC before the value represents a nominal voltage with standard tolerances (usually ±15%).
included. E.g.: DC 12V describes a 12V battery whether it is full (13.7V) or flat (10V).
• 230Vac—A figure with the unit (Vac) at the end is a momentary figure without any additional tolerances included.
• 50Hz vs. 60Hz—As long as not otherwise stated, AC 230V parameters are valid at 50Hz mains frequency.
•may—A key word indicating flexibility of choice with no implied preference
•shall—A key word indicating a mandatory requirement
•should—A key word indicating flexibility of choice with a strongly preferred implementation.
Terminology and Abbreviations

2Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
Power Supply
AC 380-480V Wide-range Input
Input Fuses Already Included
Requires only Two Legs of a 3-Phase System
Width only 40mm
Efciency up to 85.8%
Input -Transient BlankingCircuit Included
Minimal Inrush Current Surge
Full Power Between -25°C and +60°C
3 Year Warranty
Description
Our power supplies are cost optimized without
compromisingquality, reliability or performance. The
most outstandingfeatures of the 1606-XLE96B-2 are its
high efciency, electronic inrush current limitation, active
input transient lter and wide operational temperature
range. It distinguishes itself by its small size and other
technological design breakthroughs.
The 1606-XLE96B-2 includes all the essential basic functions.
It utilizes only two legs of a three-phase system which saves
on wiringand installation costs. Furthermore, this concept
allows you to use a smaller unit without compromisingthe
size of the terminals. Due to the low power consumption,
an unbalancingof the individual phases is not expected.
Specication Quick Reference
Output voltage DC 12V
Adjustment range 12-15V
Output current 8 – 6.4A
Output power 96W
Output ripple < 100mVpp 20Hz to 20MHz
Input voltage AC 380-480V -15%/+20%
Mains frequency 50-60Hz ±6%
AC Input current 0.64 / 0.56A at 400 / 480Vac
Power factor 0.44 / 0.42 at 400 / 480Vac
AC Inrush current typ. 4A peak
Efciency 85.4 / 85.8% at 400 / 480Vac
Losses 16.4 / 15.9W at 400 / 480Vac
Temperature range -25°C to +70°C operational
Derating2.5W/°C +60 to +70°C
Hold-up time typ. 33 / 58ms at 400 / 480Vac
Dimensions 40x124x117mm WxHxD
CatalogNumbers
Power Supply 1606-XLE96B-2 12-15V Standard unit
Accessories 1606-XLB Wall mount bracket
1606-XLSRED Decouplingmodule
Certication Marks
IND. CONT. EQ.
UL 508
UL 60950-1
Marine
EMC, LVD
Marine RINA
GOST R C-Tick

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM030A-EN-P — April 2014 3
Bulletin 1606 Switched Mode Power Supplies
1. Intended Use
•This device is designed for installation in an enclosure and is intended for the general professional use such as in industrial control, office,
communication, and instrumentation equipment.
•Do not use this power supply in equipment where malfunction may cause severe personal injury or threaten human life.
•This device is designed for use in non-hazardous, ordinary or unclassified locations.
2. Installation Requirements
•This device may only be installed and put into operation by qualified personnel.
•This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect.
•If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to the factory for inspection.
•Mount the unit on a DIN rail so that the terminals are located on the bottom of the unit. For other mounting orientations, refer to derating
requirements in this document.
•This device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not cover ventilation grid
(e.g. cable conduits) by more than 30%!
•Keep the following installation clearances: 40mm on top, 20mm on the bottom, 5mm on the left and right sides are recommended when the
device is loaded permanently with more than 50% of the rated power. Increase this clearance to 15mm in case the adjacent device is a heat
source (e.g. another power supply).
SHOCK HAZARD: Do not use the power supply without proper grounding (Protective Earth). Use the terminal on the input
block for earth connection and not one of the screws on the housing.
- Turn power off before working on the device. Protect against inadvertent re-powering
- Make sure that the wiring is correct by following all local and national codes
- Do not modify or repair the unit
- Do not open the unit as high voltages are present inside
- Use caution to prevent any foreign objects from entering the housing
- Do not use in wet locations or in areas where moisture or condensation can be expected
- Do not touch during power-on, and immediately after power-off. Hot surfaces may cause burns.
WARNING: EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment. Do not disconnect the unit or operate the voltage adjustment or S/P jumper unless
power has been switched off or the area is known to be non-hazardous.

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
4Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
3. AC Input
AC input nom. AC 380-480V TN, TT, IT-mains networks,
grounding of one phase is allowed except for UL508
applications
AC input range 323-576Vac continuous operation,
no damage between 0 and 323Vac
576-700Vac for max. 1 second, occasional (not periodical)
Allowed Voltage Phase to Earth 500Vac IEC 62103
Input frequency nom. 50–60Hz ±6%
Turn-on voltage typ. 270Vac load independent, see Fig. 3-1
Shut-down voltage typ. 185Vac at 12V, 0A, see Fig. 3-1
typ. 215Vac at 12V, 4A
typ. 225Vac at 12V, 8A
AC 400V AC 480V
Input current typ. 0.64A 0.56A at 12V, 8A, see Fig. 3-3
Power factor *) typ. 0.44 0.42 at 12V, 8A, see Fig. 3-4
Start-up delay typ. 75ms 75ms see Fig. 3-2
Rise time typ. 50ms 50ms 0mF, 12V, 8A, see Fig. 3-2
typ. 85ms 85ms 8mF, 12V, 8A, see Fig. 3-2
Turn-on overshoot max. 100mV 100mV see Fig. 3-2
*) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.
Fig. 3-1 Input voltage range Fig. 3-2 Turn-on behavior, denitions
Turn-on
323V
Rated input
range
V
IN
P
OUT
185V 576V
Shut-down
260V 700Vac
< 1s
Start-up
delay Rise Time
Overshoot
- 5%
Output
Voltage
Input
Voltage
Fig. 3-3 Input current vs. output load at 12V Fig. 3-4 Power factor vs. output load
8A
01 34
0
0.1
0.2
0.4
0.5
0.6
0.8A
Input Current, typ.
Output Current
25
0.3
0.7
6 7
400Vac
480Vac
8A
01 34
0.30
0.35
0.40
0.45
0.50
Power Factor, typ.
Output Current
25
480Vac
400Vac
7
6

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM030A-EN-P — April 2014 5
Bulletin 1606 Switched Mode Power Supplies
4. DC Input
DC input nom. DC 600V
DC input range 450-780Vdc continuous operation
Allowed Voltage Line to Earth max. 820Vdc IEC 62103
DC input current typ. 0.24A / 0.14A 450Vdc / 780Vdc, 12V, 8A
Turn-on voltage typ. 370Vdc steady state value
Shut-down voltage typ. 260Vdc steady state value
Fig. 4-1 Wiring for DC Input Instructions for DC use:
+
-
Load
L1
PE
+
-
Power Supply
AC
DC
Battery
L2
FUSE
FUSE
a) Use a battery or similar DC source.
For other sources, contact Rockwell Automation.
b) Connect +pole to L1 and –pole to L2.
c) Use appropriate external fuses in the + and – lines which
are suitable for the DC-voltage.
d) Connect the PE terminal to a earth wire or to the machine
ground.
e) Operation with DC is not included in the UL approval.
Additional testing might be necessary.
5. Input Inrush Current
An active inrush limitation circuit limits the input inrush current after turn-on of the input voltage and after short
input voltage interruptions.
The charging current into EMI suppression capacitors is disregarded in the rst microseconds after switch-on.
AC 400V AC 480V
Inrush current max. 10Apeak 10Apeak -25°C to +70°C
typ. 4Apeak 4Apeak -25°C to +70°C
Inrush energy max. 0.5A2s 0.5A2s -25°C to +70°C
Fig. 5-1 Input inrush current, typical behavior
1 >
2
2 >
3 >
Output Voltage
Input Voltage
Input Current
20ms / DIV
Input: 400Vac
Output: 12V, 8A
Ambient: 25°C
Upper curve: Input current 2A / DIV
Middle curve: Input voltage 500V / DIV
Lower curve: Output voltage 5V / DIV
Time basis: 20ms / DIV

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
6Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
6. Output
Output voltage nom. 12V
Adjustment range min. 12-15V guaranteed
max. 16.0V at clockwise end position of potentiometer
Factory setting 12.0V ±0.2%, at full load, cold unit
Line regulation max. 10mV 323-576Vac
Load regulation max. 100mV static value, 0A 8A
Ripple and noise voltage max. 100mVpp 20Hz to 20MHz, 50Ohm
Output capacitance typ. 5 200μF
Output current nom. 8A at 12V, see Fig. 6-1
nom. 6.4A at 15V, see Fig. 6-1
Output power nom. 96W
Short-circuit current min. 12A continuous current, short circuit impedance 100mOhm
max. 15A continuous current, short circuit impedance 100mOhm
Fig. 6-1 Output voltage vs. output current,
typ.
Output Voltage
0
048
3
6
15V
9
12
012162 14
A
Adjustment
Range
Output Current
Peak current capability (up to several milliseconds)
The power supply can deliver a peak current which is higher than the specied short term current. This helps to start
current demanding loads or to safely operate subsequent circuit breakers.
The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will be
discharged and causes a voltage dip on the output. Detailed curves can be found in section 23.1.
Peak current voltage dips typ. from 12V to 7V at 16A for 50ms, resistive load
typ. from 12V to 7V at 40A for 2ms, resistive load
typ. from 12V to 3.7V at 40A for 5ms, resistive load

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM030A-EN-P — April 2014 7
Bulletin 1606 Switched Mode Power Supplies
7. Hold-up Time
AC 400V AC 480V
Hold-up Time typ. 33ms 58ms at 12V, 8A, see Fig. 7-1
typ. 63ms 110ms at 12V, 4A, see Fig. 7-1
Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behavior, denitions
0
25
50
75
100ms
320 360 400 440 480Vac
Input Voltage
Hold-up Time at 12Vdc
4A,typ.
8A,min.
8A,typ.
4A,min.
- 5%
Hold-up Time
Zero Transition
Output
Voltage
Input
Voltage

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
8Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
8. Efciency and Power Losses
AC 400V AC 480V
Efciency typ. 85.4% 85.8% at 12V, 8A
Average efciency *) typ. 84.7% 84.1% 25% at 2A, 25% at 4A, 25% at 6A. 25% at 8A
Power losses typ. 1.5W 1.6W at 0A
8.4W 9.1W at 12V, 4A
typ. 16.4W 15.9W at 12V, 8A
*) The average efciency is an assumption for a typical application where the power supply 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.
Fig. 8-1 Efciency vs. output current at 12V,
typ.
Fig. 8-2 Losses vs. output current at 12V,
typ.
Efciency
1
82
84
86
81
87%
8
A
245
Output Current
3
83
85
400Vac
480Vac
67
Power Losses
012 45 8A
0
3
9
15
18W
6
3
12
Output Current
67
400Vac
480Vac
Fig. 8-3 Efciency vs. input voltage at 12V,
8A, typ.
Fig. 8-4 Losses vs. input voltage at 12V, 8A,
typ.
Efciency
320 360 400 440 480
87%
84.5
85.5
86.5
86.0
85.0
84.0
520 560
Input Voltage Vac
Power Losses
320 360 400 440 480
18W
3
9
15
12
6
o
520 560
Input Voltage Vac

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM030A-EN-P — April 2014 9
Bulletin 1606 Switched Mode Power Supplies
9. Functional Diagram
Fig. 9-1 Functional diagram
+
+
-
-
V
OUT
Output
Over-
Voltage
Protection
PFC
Inductor
Inrush
Limiter
Transient
Filter
Input Fuses
Input Filter
Input
Rectier
Output
Voltage
Regulator
Power
Converter Output
Filter
Output
Power
Manager
Temper-
ature
Shut-
down DC-ok LED
L2
L1
10. Front Side and User Elements
Fig. 10-1 Front side
AOutput Terminals
Screw terminals, dual terminals per pole
+ Positive output
-Negative (return) output
BInput Terminals
Screw terminals
L1, L2 Phase input
PE (Protective Earth) input
COutput voltage potentiometer
Open the ap to set the output voltage. Factory set: 12.0V
DDC-OK LED (green)
On when the voltage on the output terminals is > 10.5V
A
B
C
D

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
10 Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
11. Terminals and Wiring
Input Output
Type screw terminals screw terminals
Solid wire 0.5-6mm20.5-6mm2
Stranded wire 0.5-4mm20.5-4mm2
American Wire Gauge 20-10 AWG 20-10 AWG
Wire stripping length 7mm / 0.275inch 7mm / 0.275inch
Screwdriver 3.5mm slotted or
Pozidrive No 2
3.5mm slotted or
Pozidrive No 2
Recommended tightening torque 0.8Nm, 7lb.in 0.8Nm, 7lb.in
Instructions:
a) Use appropriate copper cables that are designed for an operating temperature of:
60°C for ambient up to 45°C and 75°C for ambient up to 60°C minimum.
b) Follow national installation codes and regulations!
c) Ensure that all strands of a stranded wire enter the terminal connection!
d) Up to two stranded wires with the same cross section are permitted in one connection point (except PE wire).
e) Do not use the unit without grounding it to the earth (PE).
f) Screws of unused terminal compartments should be securely tightened.
g) Ferrules are allowed, but not required.
12. Reliability
AC 400V AC 480V
Lifetime expectancy *) 51 000h 55 000h at 12V, 8A and 40°C
152 000h 147 000h at 12V, 4A and 40°C
144 000h 156 000h at 12V, 8A and 25°C
MTBF **) SN 29500, IEC 61709 983 000h 967 000h at 12V, 8A and 40°C
1 799 000h 1 769 000h at 12V, 8A and 25°C
MTBF **) MIL HDBK 217F 484 000h 455 000h at 12V, 8A and 40°C; Ground Benign GB40
636 000h 600 000h at 12V, 8A and 25°C; Ground Benign GB25
*) The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime
expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specied in operational hours and is calculated according to the
capacitor’s manufacturer specication. The prediction model allows only a calculation of up to 15 years from date of shipment.
**) MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of a
device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM030A-EN-P — April 2014 11
Bulletin 1606 Switched Mode Power Supplies
13. EMC
The power supply is suitable for applications in industrial environment as well as in residential, commercial and light
industry environment without any restrictions. The CE Mark indicates conformance with EMC guideline 89/336/EC,
93/68/EC and 2004/108/EC and the low-voltage directive (LVD) 73/23/EC and 2006/95/EC. A detailed EMC report is
available on request.
EMC Immunity Generic standards: EN 61000-6-1 and EN 61000-6-2
Electrostatic discharge EN 61000-4-2 Contact discharge
Air discharge
8kV
15kV
Criterion A
Criterion A
Electromagnetic RF eld EN 61000-4-3 80MHz-2.7GHz 10V/m Criterion A
Fast transients (Burst) EN 61000-4-4 Input lines
Output lines
4kV
2kV
Criterion A
Criterion A
Surge voltage on input EN 61000-4-5 L1 L2 2kV Criterion A
Surge voltage on input EN 61000-4-5 L1 PE, L2 PE 4kV Criterion A
Surge voltage on output EN 61000-4-5 + -
+ / - PE
500V
500V
Criterion A
Criterion A
Conducted disturbance EN 61000-4-6 0.15-80MHz 10V Criterion A
Mains voltage dips EN 61000-4-11 0% of 380Vac
0% of 480Vac
0Vac, 20ms
0Vac, 20ms
Criterion A
Criterion A
Mains voltage dips EN 61000-4-11 40% of 380Vac
40% of 480Vac
70% of 380Vac
70% of 480Vac
200ms
200ms
500ms
500ms
Criterion C
Criterion C
Criterion A
Criterion A
Voltage interruptions EN 61000-4-11 0Vac, 5000ms Criterion C
Voltage sags SEMI F47 0706 80% of 380Vac, load: 12V, 4A
70% of 380Vac, load: 12V, 4A
50% of 380Vac, load: 12V, 4A
1000ms
500ms
200ms
Criterion A
Criterion A
Criterion A
Voltage sags SEMI F47 0706 80% of 480Vac, load: 12V, 8A
70% of 480Vac, load: 12V, 8A
50% of 480Vac, load: 12V, 8A
1000ms
500ms
200ms
Criterion A
Criterion A
Criterion A
Powerful transients VDE 0160 over entire load range 1550V, 1.3ms Criterion A
Criteria:
A: Power supply shows normal operation behavior within the dened limits.
C: Temporary loss of function is possible. Power supply may shut-down and restart by itself. No damage or hazards for the power supply
will occur.
EMC Emission Generic standards: EN 61000-6-3 and EN 61000-6-4
Conducted emission EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B, input lines
Radiated emission EN 55011, EN 55022 Class B
Harmonic input current EN 61000-3-2 fullled
Voltage uctuations, icker EN 61000-3-3 fullled
This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause undesired operation.
Switching frequency Variable between 45kHz and 170kHz depending on load and input voltage

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
12 Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
14. Environment
Operational temperature *) -25°C to +70°C (-13°F to 158°F) reduce output power according Fig. 14-1
Storage temperature -40 to +85°C (-40°F to 185°F) for storage and transportation
Output de-rating 2.5W/°C 60-70°C (140°F to 158°F)
Humidity **) 5 to 95% r.H. IEC 60068-2-30
Vibration sinusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g
2 hours / axis
IEC 60068-2-6
Shock 30g 6ms, 20g 11ms
3 bumps / direction, 18 bumps in total
IEC 60068-2-27
Altitude 0 to 6000m (0 to 20 000ft) reduce output power or ambient temperature
above 2000m sea level.
Altitude de-rating 6W/1000m or 5°C/1000m above 2000m (6500ft), see Fig. 14-2
Over-voltage category III IEC 62103, EN 50178, altitudes up to 2000m
II altitudes from 2000m to 6000m
Degree of pollution 2 IEC 62103, EN 50178, not conductive
*) Operational temperature is the same as the ambient temperature and is dened as the air temperature 2cm below the unit.
**) Do not energize in the presence of condensation.
Fig. 14-1 Output current vs. ambient temp. Fig. 14-2 Output current vs. altitude at 12V
0
-25 0 20 40 70°C
1
3
4
5
6
8A
60
Ambient Temperature
continuous
2
7
Allowable Output Current at 12V
0
0 2000 4000 6000m
1
2
4
5
6
8A
Altitude
A...Tamb<60°C
B...Tamb<50°C
C...Tamb<40°C
C
B
A
3
7
Allowable Output Current at 12V

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM030A-EN-P — April 2014 13
Bulletin 1606 Switched Mode Power Supplies
15. Protection Features
Output protection Electronically protected against overload, no-load and short-circuits *)
Output over-voltage protection typ. 18Vdc
max. 20Vdc
In case of an internal power supply defect, a redundant
circuit limits the maximum output voltage. The output
shuts down and automatically attempts to restart.
Degree of protection IP 20 EN/IEC 60529
Penetration protection > 3.5mm e.g. screws, small parts
Over-temperature protection yes output shut-down with automatic restart
Input transient protection MOV (Metal Oxide Varistor) and active transient lter
Internal input fuse 2x T3.15A H.B.C. not user replaceable
*) In case of a protection event, audible noise may occur.
16. Safety Features
Input / output separation *) SELV IEC/EN 60950-1
PELV IEC/EN 60204-1, EN 50178, IEC 62103, IEC 60364-4-41
Class of protection I PE (Protective Earth) connection required
Isolation resistance > 5MOhm input to output, 500Vdc
PE resistance < 0.1Ohm
Touch current (leakage current) typ. 0.14mA 400Vac, 50Hz, TN mains
typ. 0.19mA 480Vac, 60Hz, TN mains
< 0.18mA 440Vac, 50Hz, TN mains
< 0.25mA 528Vac, 60Hz, TN mains
*) Double or reinforced insulation
17. Dielectric Strength
The output voltage is oating and has no ohmic connection to the ground. Type and factory tests are conducted by
the manufacturer. Field tests may be conducted in the eld using the appropriate test equipment which applies the
voltage with a slow ramp (2s up and 2s down). Connect all phase-terminals together as well as all output poles before
conducting the test. When testing, set the cut-off current settings to the value in the table below.
Fig. 17-1 Dielectric strength
A B C
Type test 60s 2500Vac 3000Vac 500Vac
Factory test 5s 2500Vac 2500Vac 500Vac
Field test 5s 2000Vac 2000Vac 500Vac
Cut-off current setting > 5mA > 5mA > 15mA
A
C
B
L1
Input
Earth
Output
-
+
L2
To fulll the PELV requirements according to EN60204-1 § 6.4.1, we
recommend that either the + pole, the – pole or any other part of
the output circuit be connected to the protective earth system.
This prevents situations in which a load starts unexpectedly or
cannot be switched off in the occurence of unnoticed earth faults.

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
14 Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
Product certification information (including Certificates and Declarations of Conformity) can be found at www.ab.com/certifications.
18. Certications
EN 60950-1 Complies with CE EMC and CE Low Voltage Directives
UL 508
IND. CONT. EQ.
Listed E56639 for use in the U.S.A. (UL 508) and
Canada (C22.2 No. 14-95)
Industrial Control Ecuipment
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
Marine GL
GL (Germanischer Lloyd) classied for marine and offshore
applications. Environmental category: C, EMC2
See below for link to the Certicate.
Marine RINA RINA (Registro Italiano Navale) certied. See below for link
to the Certicate.
GOST R GOST R certication is applicable for products intended for sale
and use within Russia. See below for link to the Certicate.
C-Tick C-Tick compliance is for products intended for sale and use
within the Australian market. See below for link to Certicate.
19. Environmental Compliance
The unit does not release any silicone and is suitable for the use in paint shops.
The unit conforms to the RoHS directive 2002/96/EC.
Electrolytic capacitors included in this unit do not use electrolytes such as Quaternary Ammonium Salt Systems.
Plastic housings and other molded plastic materials are free of halogens, wires and cables are not PVC insulated.
The production material within our production does not include following toxic chemicals:
Polychlorized Biphenyl (PCB), Polychlorized Terphenyl (PCT), Pentachlorophenol (PCP), Polychlorinated naphthalene
(PCN), Polybrom Biphenyll (PBB), Polybrom Bipheny-oxyd (PBO), Polybrominated Diphenylether (PBDE), Polychlorinated
Diphenylether (PCDE), Polydibromphenyl Oxyd (PBDO), Cadmium, Asbestos, Mercury, Silicia

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM030A-EN-P — April 2014 15
Bulletin 1606 Switched Mode Power Supplies
20. Physical Dimensions and Weight
Weight 500g / 1.1lb
DIN Rail Use 35mm DIN rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
The DIN rail height must be added to the unit depth (117mm) to calculate the total required
installation depth.
Installation Clearances See section 2.
Fig. 20-1 Front view Fig. 20-2 Side view

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
16 Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
21. Accessory
1606-XLB Wall mounting bracket
This bracket is used to mount specific units onto a at surface without a DIN rail. The two aluminium brackets
and the black plastic slider of the unit have to be removed in order to mount the two steel brackets.
Fig. 21-1 1606-XLB Wall mounting bracket Fig. 21-2 Assembled wall mounting bracket *)
*) Picture of the power supply is for representation only.

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM030A-EN-P — April 2014 17
Bulletin 1606 Switched Mode Power Supplies
22. Application Notes
22.1. Peak Current Capability
Solenoids, contactors and pneumatic modules often have a steady state coil and a pick-up coil. The inrush current
demand of the pick-up coil is several times higher than the steady-state current and usually exceeds the nominal
output current (including the PowerBoost) The same situation applies, when starting a capacitive load.
Branch circuits are often protected with circuit breakers or fuses. In case of a short or an overload in the branch circuit,
the fuse needs a certain amount of over-current to trip or to blow. The peak current capability ensures the safe
operation of subsequent circuit breakers.
Assuming the input voltage is turned on before such an event, the built-in large sized output capacitors inside the
power supply can deliver extra current. Discharging this capacitor causes a voltage dip on the output. The following
examples show typical voltage dips:
Fig. 22-1 Peak load 16A for 50ms, typ. Fig. 22.2 Peak load 40A for 5ms, typ.
10ms/DIV
Output
Voltage
Output
Current
12V
0A
16A 7V
1ms/DIV
Output
Voltage
Output
Current
12V
0A
40A
3.7V
Peak load 16A (resistive load) for 50ms
Output voltage dips from 12V to 7V. Peak load 40A (resistive load) for 5ms Output voltage dips from 12V to 3.7V.
22.2. Back-feeding Loads
Loads such as decelerating motors and inductors can feed voltage back to the power supply. This feature is also called
return voltage immunity or resistance against Back- E.M.F. (Electro Magnetic Force).
This power supply is resistant and does not show malfunctioning when a load feeds back voltage to the power supply.
It does not matter, whether the power supply is on or off.
The maximum allowed feed-back-voltage is 25Vdc. The absorbing energy can be calculated according to the built-in
large sized output capacitance which is specied in section 6.

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
18 Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
22.3. Charging Batteries
The power supply can be used to charge 12V lead-acid or maintenance free batteries.
Instructions for charging batteries:
a) Ensure that the ambient temperature of the power supply is below 45°C
b) Set output voltage (measured at no load and at the battery end of the cable) very precisely to the end-of-charge
voltage.
End-of-charge voltage 13.9V 13.75V 13.6V 13.4V
Battery temperature 10°C 20°C 30°C 40°C
c) Use a 10A circuit breaker (or blocking diode) between the power supply and the battery.
d) Ensure that the output current of the power supply is below the allowed charging current of the battery.
e) The return current to the power supply (battery discharge current) is typ. 5.5mA when the power supply is
switched off (except in case a blocking diode is used).
22.4. External Input Protection
The unit is tested and approved for branch circuits up to 30A (U.S.A.) and 32A (IEC). An external protection is only
required, if the supplying branch has an ampacity greater than this. Check also local codes and local requirements. In
some countries local regulations might apply.
If an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of
the circuit breaker. A minimum value of 6A B- or 3A C-Characteristic breaker should be used.
22.5. Inductive and Capacitive Loads
The unit is designed to supply any kind of load, including unlimited capacitive and inductive loads.

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM030A-EN-P — April 2014 19
Bulletin 1606 Switched Mode Power Supplies
22.6. Parallel Use to Increase Output Power
1606-XLE96B-2 power supplies can be paralleled to increase the output power.
This power supply does not include the capacity to balance the load current
between the power supplies. Usually the power supply with the higher
adjusted output voltage draws current until it goes into current limitation.
Therefore, the power supply can only be used in parallel as long as the
ambient temperature stays below 45°C. The output voltages of all power
supplies shall be adjusted to the same value (±100mV). A fuse or diode on
the output of each unit is required only if you connect more than three units
in parallel. If using a fuse or circuit breaker, choose one with approximately
150% of the rated output current of one power supply. Maintain an
installation clearance of 15mm (left / right) between two power supplies and avoid installing the power supplies on
top of each other. Do not use power supplies in parallel in mounting orientations other than the standard mounting
orientation (input terminals on the bottom and output terminals on top of the unit) or in any other condition where a
derating of the output current is required (e.g. altitude, above 60°C, …). Please note that leakage current, EMI,
inrush current and harmonics will increase when using multiple power supplies.
Unit A
AC
DC
Unit B
AC
DC
-
+
-
+
Load
+
-
22.7. Parallel Use for Redundancy
Power supplies can be paralleled for redundancy to gain higher system availability. Redundant systems require a
certain amount of extra power to support the load in case one power supply unit fails. The simplest way is to put two
power supplies in parallel. This is called a 1+1 redundancy. In case one power supply unit fails, the other one is
automatically able to support the load current without any interruption. Redundant systems for a higher power
demand are usually built in a N+1 method. E.g. six power supplies, each rated for 8A are paralleled to build a 40A
redundant system. For N+1 redundancy the same restrictions apply as for increasing the output power, see also section
22.6.
Please note: This simple way to build a redundant system does not cover failures such as an internal short circuit in
the secondary side of the power supply. In such a case, the defect unit becomes a load for the other power supplies
and the output voltage can not be maintained any more. This can only be avoided by using decoupling diodes
which are included in the 1606-XLSRED decoupling module.
Recommendations for building redundant power systems:
a) Use separate input fuses for each power supply.
b) Monitor the individual power supply units.
c) 1+1 Redundancy is allowed up to an ambient temperature of 60°C
N+1 Redundancy is allowed up to an ambient temperature of 45°C
d) It is desirable to set the output voltages of all units to the same value (± 100mV) or leave it at the factory setting.

All parameters are specified at 12V, 2.5A,230Vac input, 25ªC ambient and after a 5 minutes run-in time, unless noted otherwise.
20 Rockwell Automation Publication 1606-RM030A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
22.8. Daisy Chaining of Outputs
Daisy chaining (jumping from one power supply output to the next) is allowed as long as the average output current
through one terminal pin does not exceed 25A. If the current is higher, use a separate distribution terminal block.
Fig. 23-3 Daisy chaining of outputs Fig. 23-4 Using distribution terminals
Power
Supply
+ +
- -
Input
Output
Load
+
-
max 25A!
Power
Supply
+ +
- -
Input
Output
Load
+
-
Distribution
Terminals
Power
Supply
+ +
- -
Input
Output
Power
Supply
+ +
- -
Input
Output
22.9. Series Operation
Earth
Unit A
AC
DC
Unit B
AC
DC
-
+
-
+
Load
+
-
Power supplies of the same type can be connected in series for higher output
voltages. It is possible to connect as many units in series as needed, providing
the sum of the output voltage does not exceed 150Vdc. Voltages with a
potential above 60Vdc are no longer SELV and can be dangerous. Such
voltages must be installed with a protection against touching. Earthing of the
output is required when the sum of the output voltage is above 60Vdc. Avoid
return voltage (e.g. from a decelerating motor or battery) which is applied to
the output terminals. Keep an installation clearance of 15mm (left / right)
between two power supplies and avoid installing the power supplies on top of
each other. Please note that leakage current, EMI, inrush current and harmonics
all increase when using multiple power supplies.
22.10. Use in a Tightly Sealed Enclosure
When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher
than outside. In such situations, the inside temperature denes the ambient temperature for the power supply.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
The power supply is placed in the middle of the box; no other heat producing item is inside the box.
Enclosure: Rittal Typ IP66 Box PK 9516 100, plastic, 110x180x165mm
Load: 12V, 6.4A; (=80%) load is placed outside the box.
Input: 2x 400Vac
Temperature inside enclosure: 51.1°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside enclosure: 25.2°C
Temperature rise: 25.9K