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    Power Supplies

    We have a wide selection of power supply units (PSUs) for use in various domestic and industrial applications. Our range includes AC-DC power supply adapters and desktop computer power supply suitable for domestic applications, as well as bench power supplies, DIN Rail and panel mount power supplies and switch mode PSU.

    What is a power supply?

    Power supplies are a crucial aspect of any electrical equipment, providing reliable power to machinery, computers or other technology devices. A power supply changes a source electric current, such as a mains plug, to the correct voltage, frequency and current needed to operate the equipment safely.

    How do power supplies work?

    A power supply is used to reduce mains or three phase electricity, often at 240 Vac or 440 Vac down to a voltage that is usable, such as 12 Vdc. The PSU also converts the current rating, in the form of AMPS, to a level that is safe for the device that is to be powered.

    What is the difference between the types of power supplies?

    There are three main types of power supply: unregulated, linear and switch mode.

    An unregulated power supply is the most basic type, they typically output a lot of ripple voltage (i.e. rapidly-varying instability) on the DC output power. If the input voltage varies, the output voltage will vary by a proportional amount. The advantage of an unregulated supply is that it's affordable, simple, and efficient.A linear power supply is similar in construction to an unregulated power supply, with the advantage of an added transistor circuit to regulate the output to a fixed voltage. A switch mode supply, also known as switching power supply, works by stabilising the mains electricity voltage in order to produce a clean, efficient and stable output voltage.

    What is power supply efficiency?

    Power supply efficiency is known as the amount of power actually provided to the internal circuitry, divided by the amount of power drawn from the mains supply. If a PSU is 50% efficient and is required to provide 50 Watts of power, 100 Watts will be drawn from the main supply. The extra 50 W is lost as heat. A 90% efficient PSU would draw 56 W in the same circumstances.

    What industries can power supplies be used in?

    Here are some common industries and environments power supplies can be used in:

    • Machine and panel building
    • Maintenance
    • Marine & offshore
    • Military & defence
    • Automotive
    • Electrical wiring
    • Domestic
    • Food and beverage
    • Manufacturing
    AC/DC Adapters
    AC/DC Adapters
    DIN Rail Power Supplies
    DIN Rail Power Supplies
    Generators
    Generators
    Linear Power Supplies
    Linear Power Supplies
    PC Power Supplies
    PC Power Supplies
    PoE Injectors
    PoE Injectors
    Power Supply Accessories
    Power Supply Accessories
    Switching Power Supplies
    Switching Power Supplies
    Uninterruptible Power Supplies
    Uninterruptible Power Supplies

    8992 Produits présentés pour Power Supplies

    9 sur 450
    XP Power Switching Power Supply, ECL25US24-S, 24V dc, 1.05A, 25W, 1 Output, 120 → 370 V dc, 85 → 264 V ac
    • N° de stock RS 122-7784
    • Référence fabricant ECL25US24-S
    la pièce
    55,89 €
    MEAN WELL Switching Power Supply, IRM-30-12ST, 12V dc, 2.5A, 30W, 1 Output, 85 → 264V ac Input Voltage
    • N° de stock RS 135-8951
    • Référence fabricant IRM-30-12ST
    la pièce
    20,09 €
    MEAN WELL 264V ac Input Battery Charger (60W)
    • N° de stock RS 283-5749
    • Référence fabricant DRC-100A
    la pièce
    46,60 €
    Eaton 190 → 276V Input Stand Alone Uninterruptible Power Supply, 6000VA (5.4kW), 9SX
    • N° de stock RS 206-4740
    • Référence fabricant 9SX6KI Eaton 9SX 6000i
    la pièce
    4 086,18 €
    XP Power 40W Power Brick AC/DC Adapter 12V dc Output, 3.33A Output
    • N° de stock RS 121-7104
    • Référence fabricant VEC40US12
    la pièce
    20,81 €
    APC 160 → 286V Input Rack Mount, Stand Alone Uninterruptible Power Supply, 750VA (500W), Smart-UPS X
    • N° de stock RS 715-8831
    • Référence fabricant SMX750I
    la pièce
    809,00 €
    XP Power 65W Power Brick AC/DC Adapter 24V dc Output, 2.7A Output
    • N° de stock RS 121-7101
    • Référence fabricant ALM65US24C2-8
    la pièce
    44,62 €
    MEAN WELL Switching Power Supply, UHP-200A-5, 5V dc, 40A, 200W, 1 Output, 127 → 370 V dc, 90 → 264 V ac
    • N° de stock RS 174-8120
    • Référence fabricant UHP-200A-5
    la pièce
    73,69 €
    RS PRO 96W Plug-In AC/DC Adapter 24V dc Output
    • N° de stock RS 210-7466
    la pièce
    43,31 €
    MEAN WELL Switching Power Supply, RD-35A, 5 V dc, 12 V dc, 1A, 32W, Dual Output, 125 → 373 V dc, 88 → 264
    • N° de stock RS 644-7073
    • Référence fabricant RD-35A
    la pièce
    28,15 €
    Siemens SIPLUS LOGO Switched Mode DIN Rail Power Supply, 240V ac ac Input, 24V dc dc Output, 1.3A Output, 31W
    • N° de stock RS 254-0430
    • Référence fabricant 6AG13316SB007AY0
    la pièce
    225,00 €
    TDK-Lambda Switching Power Supply, RWS-50B-24, 24V dc, 2.2A, 52.8W, 1 Output, 120 → 370 V dc, 85 → 265 V
    • N° de stock RS 839-9620
    • Référence fabricant RWS-50B-24
    la pièce
    37,73 €
    MEAN WELL 120W Power Brick AC/DC Adapter 13.8V dc Output, 0 → 8.7A Output
    • N° de stock RS 136-1310
    • Référence fabricant ENP-120-12
    la pièce
    78,88 €
    Ansmann 30W Power Brick AC/DC Adapter 5V dc Output, 6A Output
    • N° de stock RS 223-7480
    • Référence fabricant 1001-0107-520
    la pièce
    20,37 €
    Hirschmann 8 Port POE Injector, 48 → 56V dc Input, 48-56V dc Output, 48 → 56A, 245W
    • N° de stock RS 245-6927
    • Référence fabricant RPI-P1-8PoE, PoE Injector
    la pièce
    1 230,01 €
    RS PRO 6W Plug-In AC/DC Adapter 12V dc Output, 500mA Output
    • N° de stock RS 175-2804
    la pièce
    15,89 €
    Cosel Switching Power Supply, PJA1000F-48, 48V dc, 21A, 1kW, 1 Output, 85 → 264V ac Input Voltage
    • N° de stock RS 171-1515
    • Référence fabricant PJA1000F-48
    la pièce
    330,89 €
    RS PRO 20W Plug-In AC/AC Adapter 12V ac Output, 1.6A Output
    • N° de stock RS 139-1775
    la pièce
    20,49 €
    Siemens LOGO POWER Switched Mode DIN Rail Power Supply, 100 → 240V ac ac Input, 24V dc dc Output, 4A Output, 96W
    • N° de stock RS 136-5298
    • Référence fabricant 6EP3333-6SB00-0AY0
    la pièce
    106,00 €
    Siemens SITOP PSU100S Switched Mode DIN Rail Power Supply, 85 → 132V ac ac Input, 24V dc dc Output, 20A Output,
    • N° de stock RS 756-3977
    • Référence fabricant 6EP1336-2BA10
    la pièce
    252,00 €
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