RMSL-‐624 AC to DC Power Supply Owners Guide
 RMSL-­‐624 AC to DC Power Supply Owners Guide (These instructions are intended for use by a technician familiar with electronic products)
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Input voltage 88~132 / 176~264 VAC switch selectable Short circuit/overload/ over voltage/ over temperature protections Build-­‐in EMI filter Soft start with limiting AC surge current Approvals: UL (Modules)
3 year warranty
DESCRIPTION
The RMSL-624 is an AC to DC power supply that has a 6.0 amps max load and switch selectable AC input voltage. All RMSL
modules have build-in EMI filter and hold UL approvals.
SPECIFICATIONS
Output Voltage........................................................................................................................................................................ 27.6 VDC
Output Voltage Tolerance.......................................................................................................................................................... +/- 1 pct
Output amperage, max continuous ............................................................................................................................................6 Amps
Maximum Power, continuous .................................................................................................................................................150 Watts
Output Voltage Adjustment................................................................................................................................................... 24-29 VDC
Maximum ripple and noise............................................................................................................................................100 mV p-p max
Input voltage range (switch selectable) ............................................................................................................ 90-130 or 180-260 VAC
Input frequency range.............................................................................................................................................................. 47-63 Hz
Maximum AC current ............................................................................................................................... 3 A/120 VAC; 1.5 A/240 VAC
Typical Efficiency ............................................................................................................................................................................85 %
Max inrush current, single cycle ...............................................................................................................................................35 Amps
Short Circuit protection ................................................................................................................ output shutdown, recycle AC to reset
Overload Protection (operates) ................................................................................................................................typical 110-120 pct
Line Regulation...............................................................................................................................................................................0.2%
Load Regulation .............................................................................................................................................................................0.2%
Rise Time following ON ................................................................................................................................................................50 mS
Hold Time following OFF ..............................................................................................................................................................20 mS
Working Temperature range.............................................................................................................................. -4 - 140 F (-20 - +60 C)
Storage Temperature ...................................................................................................................................... -40 - 185 F (-40 - +85 C)
Withstand Voltage* .................................................................................................................. 1.5 KV @ 10 ma(I/P-O/P, I/P-FG)/1 min
(Continued) .............................................................................................................................. 500 V @ 10 ma(O/P-FG)/1 min
Dimensions ......................................................................................................................................1.75H x 19W x 4D inches, nominal
Weight .......................................................................................................................................................................2.125 lbs, nominal
INSTALLATION WARNING
1
The individual user should take care to determine, prior to use or installation, whether this device is suitable, adequate or safe for the
use intended. Since individual applications are subject to great variation, DuraComm makers no representation or warranty as to the
merchantability, suitability or fitness of these units for any specific application.
The precision regulated power supplies operate internally from voltages in excess of 12/24/48 volts. In rare cases, voltage spikes or
transients on the AC power line, or overheating, may cause a component failure in the power supply. Overloading the output will cause
the over current feature to operate. In either case, the cause must be determined and corrected.
Failures require investigation as to cause and/or repair of the unit.
THERE ARE NO USER SERVICEABLE PARTS INSIDE. HAZARDOUS VOLTAGES EXIST INSIDE THE UNIT. SERVICE AND
REPAIR MUST BE REFERRED TO QUALIFIED FACTORY PERSONNEL.
INSTALLER NOTES
The outputs are NOT referenced to the chassis. The Power Supply can be used either positive or negative ground without
any modification.
Allow adequate ventilation by not installing the unit inside tightly closed spaces. Physical mounting position is not critical.
Make certain the input voltage switch is set to the correct voltage BEFORE applying AC power to the Power Supply.
Input and output connections of the RMSL-series are via a 7 place screw type barrier terminal strip.
Connection Labels and Meaning / Use. Starting from the left:
L..................................................................................................................... Line Input in 120 VAC systems or A leg in 240 VAC
N ........................................................................................................... System Neutral in 120 VAC systems or B leg in 240 VAC
FG....................................................................................................................... Chassis or frame ground (system safety ground)
V- ............................................................................................................................................................ Negative Output Terminal
V- ............................................................................................................................................................ Negative Output Terminal
V+ .............................................................................................................................................................Positive Output terminal
V+ .............................................................................................................................................................Positive Output terminal
At right edge of terminal strip:
V ADJ ................................................................................................................................................... Output Voltage Adjustment
Green LED .................................................................................................................................................... Output Indicator LED
CONDUCTOR PRETREATMENT
2
All kinds of copper conductors can be clamped without treatment. DO NOT solder tin stranded conductors. The solder yields
and fractures under high pressure. The result is increased contact resistance and excessive temperature rise. Additionally, corrosion
has been observed due to the fluxes. Notch fractures at the transition from the rigid tinned part to the flexible conductors are also
possible. Ferrules can be used as a protection when wiring stranded conductors. Copper ferrules prevent the current transfer from
being influenced by dissimilar metals and remove the risk of corrosion. Always use the correct tool to crimp the ferrule.
RECOMMENDED COPPER WIRE SIZE FOR CURRENT CAPACITY
(Insulated Wire, Single Conductor in free air)
Current Level in Amperes
<7 AMPERES
Wire Size
20 AWG Up to 5 feet
18 AWG Up to 10 feet
18 AWG Up to 5 feet
16 AWG Up to 10 feet
16 AWG Up to 5 feet
14 AWG Up to 10 feet
14 AWG Up to 5 feet
12 AWG Up to 10 feet
12 AWG Up to 5 feet
10 AWG Up to 10 feet
10 AWG Up to 5 feet
8 AWG Up to 10 feet
8 AWG Up to 5 feet
6 AWG Up to 10 feet
6 AWG Up to 5 feet
4 AWG Up to 10 feet
14 AMPERES
20 AMPERES
30 AMPERES
40 AMPERES
50 AMPERES
70 AMPERES
100 AMPERES
LIMITED WARRANTY
3
DuraComm warrants to the initial end user, each power supply manufactured by DuraComm to be free from defects in
material and workmanship, when in normal use and service for a period of three year from the date of purchase, from an
authorized DuraComm dealer.
Should a product manufactured by DuraComm fail or malfunction due to manufacturing defect, or faulty component,
DuraComm, at its option, will repair or replace the faulty product or parts thereof, which, after examination by
DuraComm, prove to be defective or not operational according to specifications in effect at the time of sale to the initial
end user. The product that is replaced or repaired under the provisions of this warranty, will be warranted for the
remainder of the original warranty period, only, and will not extend into a new three year warranty period.
The limited warranty does not extend to any DuraComm product which has been subject to misuse, accidental damage,
neglect, incorrect wiring not associated with manufacture, improper charging voltages, or any product which has had the
serial number removed, altered, defaced, or changed in any way.
DuraComm reserves the right to change, alter, or improve the specifications of its products at any time, and by so doing,
incurs no obligation to install or retrofit any such changes or improvements in or on products manufactured prior to
inclusion of such changes.
DuraComm requires any product needing in or out of warranty service to be returned to DuraComm. All requests for
warranty service must be accompanied by proof of purchase, such as bill of sale with purchase date identified. DuraComm
is not responsible for any expenses or payments incurred for the removal of the product from its place of use,
transportation or shipping expenses to the place of repair, or return expenses of a repaired or replacement product to its
place of use.
The implied warranties which the law imposes on the sale of this product are expressly LIMITED, in duration, to the three
(3) year time period specified herein. DuraComm will not be liable for damages, consequential or otherwise, resulting from
the use and operation of this product, or from the breach of this LIMITED WARRANTY.
Some states do not allow limitations on the duration of the implied warranty or exclusions or limitations of incidental or
consequential damages, so said limitations or exclusions may not apply to you. This warranty gives you specific legal
rights which vary from state to state.
This warranty is given in lieu of all other warranties, whether expressed, implied, or by law. All other warranties,
including WITHOUT LIMITATION, warranties of merchantability and fitness or suitability for a particular purpose, are
specifically excluded. DuraComm reserves the right to change or modify its warranty and service programs without prior
notice.
Version 0429-14
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