
	Introduction, Selection Process
	Power Supply Catalog Section

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PS Group

SolaHD has a broad range of standard power
supplies to suit almost any industrial application. Updated approvals and user friendly features make power system design easy. The product line includes one of the broadest ranges of DIN Rail and linear-based power supplies in the marketplace. The DIN Rail products feature full CE compliance (including all the elements of CE design engineers need to worry about: safety/LVD, EMC, and ingress protection). UL 508 approvals eliminate derating in UL 508 listed panel systems. Global inputs are available for installations around the world.

Three phase input options are available on many of the SDN DIN Rail products that convert 380/480 three phase directly to 24 Vdc. They provide extremely stable, regulated low voltage without the need for a step down transformer saving space and money.

SolaHD now offers a DC UPS to provide backup power to the power supply in the event of a blackout.

A printable version of the following sections is available by selecting the pdf file to the left.

Linear vs. Switcher

SolaHD has provided both linear and switching technology products for many years. As a leading supplier of power products to the industrial market, both technologies are still important. Switching technology (most of Sola’s DIN Rail line) is the predominant method of AC-DC conversion for almost any type of electronic system sold today in the world, from PLC’s to desktop PC’s.

The small size, lightweight and high efficiency of the switching products give them significant advantages over the linear technology products (Sola’s SL and 83 series). Sola/Hevi-Duty switching products provide well filtered and regulated DC of typically less than 1% deviation from the nominal output voltage.

Linear Power Supplies for a broad
range of applications

Linears are about 50% efficient while their switching counterparts are typically over 80% efficient. Switchers
are light enough to mount on a DIN Rail, while only the smallest linears are capable of being securely mounted to a DIN Rail. Linears are still popular today because they do provide very tight regulation (<.01% typically), almost perfectly clean DC, fast transient response and their low component count helps provide a lower material cost for its user. Linears are typically open frame because of the excessive heat dissipation from their low efficiency.

SolaHD’s industry standard linears, however, are available with optional covers for safety. Most linears are recognized to UL 60950 and cannot meet the stricter temperature requirements of the UL 508 Listing, such as with SolaHD’s DIN Rail power supplies.

Linear vs. Switcher

DC Power Supply Selection Process

1. Gather the required information.

• Input voltage and frequency?

• Wattage needed?

• Number of outputs?

• Voltage of each output?

• Amperage of each output?

• Don't forget to take into account the
peak loading of each output.

2) Calculate the power (wattage) of the DC
power supply you need. If more than one
output is required, do the following calculation:

Multiply the Voltage times the amperage of each output to calculate the wattage of each output. Next, add together the wattage of each output to get the total wattage for the supply.

3) Determine which models from the Power Supply
Selection Chart meet all of the required
specifications.

4) Download the specifications sheet pdf from the
appropriate product page.

5) Check the mounting style, connections and
physical size of the power supply to ensure its
suitability for the intended application.

6) Check for applicable safety approvals for the
country and application the power supply will
be used in.

Selection Worksheet

Input: _________ Volts _________ Hz

Output: _______ VDC X _______ A = _______Watts

_______ VDC X _______ A = _______Watts

Add Watts from each output to calculate.

Total Watts: _______

Physical Dimensions:

_______ H x _______ W X _______D

Other required features or options:

Power Supply Selection Table

Series

Input Voltage

Output Voltage (V)

Power
Range
(total Watts)

Number of Outputs

Notes

DC

115
VAC

230
VAC

380/480
VAC

3.3

5

12

15
24 48 1 2 3 4

SDN
X
X X X X 60-960 X DIN Rail mount
DC Battery
Back-up available
Redundant options
NEC Class 2/DeviceNet

SDP X X X X X X X X 15-100 X DIN Rail mount compact

SCP X X X X X X X X X 30 X X X DIN Rail mount/Chassis

SCD X X X X X X 30 X X DIN Rail mount/Chassis
DC Input

SCL X X X X X 4-10 X X X DIN Rail mount/Chassis

SFL X X X X X 75-600 X DIN Rail mount
Adjustable Pot,
RED or UPS option

GL OEM
Switchers X X X X X X 40-200 X X X X
40-110 Watt, open
frame, Molex-type
connections.
200 Watt, enclosed with
connected screw
terminals

SHP X X
X X X X X X 1500-2000 X X X X Modular design, Screw
Terminals (OEM) supply
Configurable
Voltage Output

Silver
Line X X X X X X 15-244 X X X Industry standard
footprint.
Screw terminals
and optional covers.

DIN Rail Selection Table

Amps
Output Voltages (Single Output)

48 24 15 12 10 5

1

SDP1-48-100T
SDP06-24-100T x O O

SFL 1.5-48-100

SDP1-24-100T SCP30S15-DN SDP2-12-100T O

2.5 SDN2.5-24-10P
SDP2-24-100T O SCP 30S12B-DN O

3 O O SDP3-15-100T SDP2-12-100T

4 SFL 3-48-100 SDN 4-24-100P O O O

5 SFL 6-48-100 SDN 5-24-100P
SDN 5-24-480 (3Ø)
O SFL 6-12-100 SDP5-15-100T
SCP30S5B-DN

7.2
O O O

10 O SDN 10-24-100P
SDN10-24-480 (3Ø) O O O

12 SFL 12-48-100 SFL 12-24-100 O O O

20 O SDN 20-24-100P (1Ø)
SDN 20-24-480 (3Ø) O O O O

25 O SFL24-24-100
(110/220 VA) O O O O

30 O SDN 30-24-480 (3Ø) O O O O

40 O SDN 40-24-480 (3Ø) O O O O

Amps Output Voltages (Multiple Output)

±15 ±12 5/24 5/12/12

1 SCL4D15-DN SCL4D12-DN SCP30D524-DN
SCP30S524B-DN SCL10T512-DN

SCL10D15-DN SCL10D12-DN SCP30T512-DN

2.5 SCP30D15-DN SCP30D12-DN O OO

SolaHD offers Uninterruptible Power Supplies / Power Supply Products

Power Supply / Din Rail Power Supplies

SolaHD offers Uninterruptible Power Supplies / Power Supply Products