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Home > Products > Power Supplies > SFL Series

SFL Series, 75-600 Watt Power Supply

The SFL series is a DIN Rail switching power supply series that complements the Sola SDN products with more input voltage, output voltage and power levels to give an even broader range of industrial DC power solutions. These products are available in 12, 24 and 48 Vdc output and 115/230 Vac Input. They feature pluggable screw connectors (mating connectors are included in each box sold) for easy installation and service. The products feature a DIN Rail connection, front panel DC OK indicators, easily accessible AC and DC connections.

For parallel operation with power sharing, a redundant module option is available for the 300 W (24 V/12 A) and 600 W (24 V/24 A) models.

On this page: Features, Selection Table, Specifications, Mounting Brackets, Dimensions, Additional Options

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

SFL Series
Features Top

  • DIN Rail Mount regulated switch mode power supplies
  • 12 V, 24 V, and 48 V outputs available from 1.5-24 A
  • Easy-to-wire pluggable (except 600 watt models) and screw terminal connectors
  • Adjustable output voltage
  • Selectable input: 115/230 Vac
  • UL1604 Listed for Class 1, Division 2 hazardous locations (except -RED and -UDS versions)
  • UL 508 Listed (except -RED and -UDS versions). No derating necessary.
  • Fully Integrated Redundant models available:
    • RED (for SFL24-24-100 and SFL12-24-100 only): Designed for N + 1 redundant power supply systems, these units provide active current sharing and allow up to 5 power supplies to be paralleled. Decoupling diodes and an alarm output to signal a unit failure are included in this option. Multiple units are required for redundancy.
  • Models with optional battery back-up available:
    • UDS (for SFL24-24-100 and SFL12-24-100 only). Contact Technical Services for details.
  • Two Year Warranty
Selection Table Top

Catalog Number Input Voltage Selectable Output Power Maximum Output Voltage Nominal

Output Current Maximum

 SFL6-12-100
 SFL1.5-48-100
115/230 Vac 75 Watt 12 Vdc
48 Vdc
6 A
1.5 A
 SFL3-48-100 115/230 Vac 150 Watt 48 Vdc 3 A
 SFL12-24-100
 SFL6-48-100
115/230 Vac 300 Watt 24 Vdc
48 Vdc
12 A
6 A
 SFL24-24-100
 SFL12-48-100
115/230 Vac 600 Watt 24 Vdc
48 Vdc
24 A
12 A
 Redundant Models
 SFL12-24-100RED
 SFL24-24-100RED
115/230 Vac 300 Watt
600 Watt
24 Vdc 12 A
24 A

 

Specifications Top

Parameter

Value

Input

 Input Voltage Nominal (user selectable)

 93-132 Vac / 187-264 Vac

 Input Frequency

 47-63 Hz

 Input current at full load (typical)    115 Vac 230 Vac
  -75 W (12 V/6 A, 48 V/1.5 A) 1.7 A 0.9 A
  -150 W (24 V/6 A, 48 V/3 A) 3.0 A 1.7 A
  -300 W (24 V/12 A, 48 V/6 A) 5.4 A 3.3 A
  -600 W (24 V/24 A, 48 V/12 A) 10.5 A 6.4 A
 Input current (max.)    115 Vac 230 Vac
  -75 W 16.5 A 33.0 A
  -150 W 35.0 A 70.0 A
  -300 W 35.0 A 70.0 A
  -600 W 70.0 A 80.0 A
 Internal Fuse (slow blow) not accessible   
  -75 W/150 W 4.0 A
  -300 W 6.3 A
  -600 W 12.0 A

Output

 Voltage Adjustment Range 
  -12 V models

12 - 14 Vdc

  -24 V models 24 - 28 Vdc
  -48 V models 48 - 52 Vdc
 Output Regulation
 - Line voltage variation 

 ±0.2% max.

 - Load variation 10–90%
    75W, 150W Models
    
300W, 600 W Models

 
±1.0% max

±0.5% max.

 Ripple and noise (20 MHz bandwidth)  <50 mVpp
 Electronic short circuit protection/current limitation 110% typ. (constant current)

 Parallel Operation
 -SFL12-24-100RED
 -SFL24-24-100RED


Up to 5 units
 Overvoltage Protection, trigger point at 140% typical out nominal
 Holdup Time min. 20 mS

General

 Operating Temperature Range Derating above 50°C

-25°C...+70°C 2%/°C

 Storage Temperature

25°C...+85°C

 Humidity (non condensing)   

95% rel H max.

 Switching Frequency
  - 75 W
  - 150 W/300 W/600 W   


100 kHz typical
67 kHz typical

 Efficiency >85%
 Operation Indication LED, DC OK
 Isolation Voltage
 - Input/output
 - Input/case
 - Output/case   


3,000 Vac (1 minute)
2,000 Vac (1 minute)
500 Vac (1 minute)

 Safety Class (IEC536)

Class 1

 Safety Standards Met  

IEC950, EN60950, CE marked for LVD,
UL1950 recognized and UL 508

 Conducted EMI according to:

EN55022 Class B, EN55011 Class B, FCC-B

  Electromagnetic Suspectibility
 -Electrostatic discharge ESD
 -RF field suspectibility
 -Electrical fast transients/ bursts on mainsline
 -Immunity to conducted radio frequency disturbances above 9 kHz.
 -Mains frequency field


EN61000-4-2
EN61000-4-3
EN61000-4-4

EN61000-4-6
EN61000-4-8


4 kV/8 kV
10 V/m
2 kV

10 V
30 A/m
 Case protection according to IEC529 IP20
 Case Material  Steel
 Mounting

 Snap-on 35 mm DIN Rail as per EN50022 or
Chassis mounting option available.

 

Mounting Brackets Top

Catalog
Number
Output Power
Maximum
 SFL75-PMBRK 75 Watt
 SFL150-PMBRK 150 Watt
 SFL300-PMBRK 300 Watt
 SFL600-PMBRK 600 Watt

 

Dimensions (inches/mm) Top


SFL75Dims.jpg (23597 bytes)

SFL150Dims.jpg (23394 bytes)

 SFL 75 Watt (12V/6A, 48V/1.5A)

SFL 150 Watt (SFL3-48-100)


SFL300Dims.jpg (29546 bytes)

SFL600Dims.jpg (31920 bytes)

 SFL 300 Watt (SFL12-24-100RED, SFL6-48-100)

SFL 600 Watt (SFL12-48-100, SFL24-24-100RED)


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