Power Supplies


A simplified consideration of the electrical design of power supplies allows to consider them as a device with an input side and an output side. The input side and the output side are electrically isolated against each other.


Power supplies are categorized in various ways:

  • Functional: Regulated, Unregulated, Adjustable and Isolated power supplies.
  • Packaging: Bench, Open frame, Rack mount, Integral, External power supplies
  • Power Conversion Method: Linear and Switching types.

There are two types of power supplies available, AC and DC power supply. Based on the electrical device’s electric specifications it may use AC power or DC power.

DC Types

  • AC-DC Power Supply
  • Switch-Mode Power Supply
  • Linear Regulator

AC Type

  • Single Phase
  • Three Phase

Programmable Power Supplies

Uninterruptible Power Supply (UPS)


Switch Mode Power Supplies (SMPS) became particularly accepted in the field of industrial applications. Their ability to accept almost any input voltage, their high efficiency and their compact design make these power supplies a first class choice for the engineering of new or the extension of existing installations.


The safety of persons and installation equipment is a major aspect even for power supplies. The requirements to be fulfilled in order to guarantee this safety are specified by standardized regulations:

  • Safety: Electrical isolation, Insulation, Grounding etc
  • Approvals and Marks: UL, CE etc
  • Standards: IEC/EN, CENELEC etc

Return to main Industrial Automation Control page

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Contract pricing display is unavailable at the moment. Prices shown are standard retail prices, orders placed will have contract pricing applied when processed.

  Manufacturer Part No Order Code Manufacturer / Description
Availability Price For
Price
Quantity
ECM40US12
ECM40US12 - AC/DC Open Frame Power Supply (PSU), ITE & Medical, 1 Output, 40 W, 90V AC to 264V AC

1176957

AC/DC Open Frame Power Supply (PSU), ITE & Medical, 1 Output, 40 W, 90V AC to 264V AC

XP POWER

POWER SUPPLY, AC-DC, MEDICAL, 12V, 3.5A; No. of Outputs:1 Output; Power Rating (Covection Cooling):40W; Power Rating (Forced Cooling):-; Input Voltage VAC:90V AC to 264V AC; Power Supply Output Type:Adjustable, Fixed; Output Voltage - Output 1:12V; Outpu

  • 65 available for 1 - 2 business days delivery
  • 232 available for 3 - 4 business days delivery
+ Check Stock & Lead Times

  • 65 available for 1 - 2 business days delivery: (SG stock) Order before 4:30pm Mon – Fri. (Excluding National Holidays)
  • 232 available for 3 - 4 business days delivery: (UK stock) Order before 7:35pm Mon – Fri. (Excluding National Holidays)

More stock available week commencing 1/03/21

Restricted Item
VEP24US12
VEP24US12 - AC/DC Power Supply, ITE & Medical, 1 Output, 24 W, 12 V, 2 A

1716982

AC/DC Power Supply, ITE & Medical, 1 Output, 24 W, 12 V, 2 A

XP POWER

ADAPTOR, AC-DC, MEDICAL, 12V, 2A; No. of Outputs:1 Output; Output Power Max:24W; Output Voltage - Output 1:12V; Output Current - Output 1:2A; Output Voltage - Output 2:-; Output Current - Output 2:-; Output Connector:Barrel Plug Center Positive 2.5mm x 5

  • 830 available for 3 - 4 business days delivery
+ Check Stock & Lead Times

  • 830 available for 3 - 4 business days delivery: (UK stock) Order before 7:35pm Mon – Fri. (Excluding National Holidays)

  • 290 more will be available on 8/02/21
  • 575 more will be available on 3/11/20
  • More stock available week commencing 26/04/21

    Restricted Item
    ECL10US12-P
    ECL10US12-P - AC/DC PCB Mount Power Supply (PSU), ITE, 1 Output, 10 W, 12 V, 830 mA

    1289133

    AC/DC PCB Mount Power Supply (PSU), ITE, 1 Output, 10 W, 12 V, 830 mA

    XP POWER

    PSU, 10W, 12V, MINI, PCB MOUNT; No. of Outputs:1 Output; Output Power Max:10W; Output Voltage - Output 1:12V; Output Current - Output 1:830mA; Output Voltage - Output 2:-; Output Current - Output 2:-; Output Voltage - Output 3:-; Output Current - Output

    • 391 available for 3 - 4 business days delivery
    + Check Stock & Lead Times

    • 391 available for 3 - 4 business days delivery: (UK stock) Order before 7:35pm Mon – Fri. (Excluding National Holidays)

    More stock available week commencing 18/01/21

    Restricted Item
    VEL12US120-EU-JA
    VEL12US120-EU-JA - AC/DC Power Supply, ITE, 1 Output, 12 W, 12 V, 1 A

    2524421

    AC/DC Power Supply, ITE, 1 Output, 12 W, 12 V, 1 A

    XP POWER

    ADAPTOR, AC-DC, 12V, 1A; No. of Outputs:1 Output; Output Power Max:12W; Output Voltage - Output 1:12V; Output Current - Output 1:1A; Output Voltage - Output 2:-; Output Current - Output 2:-; Output Connector:Barrel Plug Center Positive 2.1mm x 5.5mm x 12

    • 559 available for 3 - 4 business days delivery
    + Check Stock & Lead Times

    • 559 available for 3 - 4 business days delivery: (UK stock) Order before 7:35pm Mon – Fri. (Excluding National Holidays)

    More stock available week commencing 15/02/21

    Restricted Item
    14440-000
    14440-000 - Linear Power Supply, ITE, 1 Outputs, 5 W, 15 V, 400 mA

    1186399

    Linear Power Supply, ITE, 1 Outputs, 5 W, 15 V, 400 mA

    VXI POWER

    PSU, 15V, 0.4A EPS 15/400C; No. of Outputs:1Outputs; Output Power Max:5W; Output Voltage - Output 1:15V; Output Current - Output 1:400mA; Output Voltage - Output 2:-; Output Current - Output 2:-; Input Voltage VAC:207V AC to 253V AC; Product Range:-; Pow

    • 3 available for 3 - 4 business days delivery
    + Check Stock & Lead Times

    • 3 available for 3 - 4 business days delivery: (UK stock) Order before 7:35pm Mon – Fri. (Excluding National Holidays)

    More stock available week commencing 30/11/20

    Restricted Item
    14438-000
    14438-000 - Linear Power Supply, ITE, 1 Outputs, 5 W, 5 V, 1 A

    1186397

    Linear Power Supply, ITE, 1 Outputs, 5 W, 5 V, 1 A

    VXI POWER

    PSU, ENCAPSULATED, 5V, 1A EPS 5/1000C; No. of Outputs:1Outputs; Output Power Max:5W; Output Voltage - Output 1:5V; Output Current - Output 1:1A; Output Voltage - Output 2:-; Output Current - Output 2:-; Input Voltage VAC:207V AC to 253V AC; Product Range

    • 3 available for 3 - 4 business days delivery
    + Check Stock & Lead Times

    • 3 available for 3 - 4 business days delivery: (UK stock) Order before 7:35pm Mon – Fri. (Excluding National Holidays)

    More stock available week commencing 30/11/20

    Restricted Item
    14442-000
    14442-000 - Linear Power Supply, ITE, 2 Outputs, 5 W, 15 V, 200 mA, -15 V

    1186402

    Linear Power Supply, ITE, 2 Outputs, 5 W, 15 V, 200 mA, -15 V

    VXI POWER

    PSU, +/-15V, 0.2A EPSD 15/200C; No. of Outputs:2Outputs; Output Power Max:5W; Output Voltage - Output 1:15V; Output Current - Output 1:200mA; Output Voltage - Output 2:-15V; Output Current - Output 2:200mA; Input Voltage VAC:207V AC to 253V AC; Product R

    Available for back order

    + Check Stock & Lead Times

    More stock available week commencing 30/11/20 Contact me when back in stock

    Restricted Item
    14428-000
    14428-000 - Linear Power Supply, ITE, 1 Outputs, 1 W, 5 V, 200 mA

    1186388

    Linear Power Supply, ITE, 1 Outputs, 1 W, 5 V, 200 mA

    VXI POWER

    PSU, ENCAPSULATED, 5V, 0.2A EPS 5/200C; No. of Outputs:1Outputs; Output Power Max:1W; Output Voltage - Output 1:5V; Output Current - Output 1:200mA; Output Voltage - Output 2:-; Output Current - Output 2:-; Input Voltage VAC:207V AC to 253V AC; Product R

    Available for back order

    + Check Stock & Lead Times

    More stock available week commencing 30/11/20 Contact me when back in stock

    Restricted Item