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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

    8998 Produits présentés pour Power Supplies

    1 sur 450
    RS PRO 90W Plug-In AC/DC Adapter 15V dc Output, 6A Output
    • N° de stock RS 229-7878
    la pièce
    81,15 €
    MEAN WELL HDR Switched Mode DIN Rail Power Supply, 85 → 264 V ac, 120 → 370V dc, 24V dc dc Output, 1.5A
    • N° de stock RS 145-7868
    • Référence fabricant HDR-30-24
    la pièce
    21,75 €
    MEAN WELL HDR Switched Mode DIN Rail Power Supply, 85 → 264 V ac, 120 → 370V dc, 5V dc dc Output, 3A
    • N° de stock RS 145-7864
    • Référence fabricant HDR-30-5
    la pièce
    22,52 €
    APC UPS Replacement Battery Cartridge, for use with Smart-UPS, UPS
    • N° de stock RS 779-4052
    • Référence fabricant RBC17
    la pièce
    69,99 €
    Phoenix Contact QUINT POWER Switched Mode DIN Rail Power Supply, 100 → 240 V ac / 110 → 250V dc ac, dc
    • N° de stock RS 174-5880
    • Référence fabricant 2904598
    la pièce
    92,69 €
    Ansmann 18W USB Adapter AC/DC Adapter 5 ⭢ 12V Output, 3A Output
    • N° de stock RS 283-5321
    • Référence fabricant 1001-0099
    la pièce
    15,06 €
    RS PRO 24W Plug-In AC/DC Adapter 12V dc Output, 0 → 2A Output
    • N° de stock RS 175-3271
    la pièce
    18,47 €
    MEAN WELL Switching Power Supply, UHP-200-48, 48V dc, 4.2A, 201.6W, 1 Output, 127 → 370 V dc, 90 → 264 V
    • N° de stock RS 174-8128
    • Référence fabricant UHP-200-48
    la pièce
    56,36 €
    RS PRO 24W Plug-In AC/DC Adapter 12V dc Output, 0 → 2A Output
    • N° de stock RS 175-3275
    la pièce
    18,25 €
    RS PRO Enclosed Linear Power Supply, 230V ac Input, 24V ac Output, 3A Output, 72VA
    • N° de stock RS 916-3905
    la pièce
    114,60 €
    Socomec 230V Input Stand Alone Uninterruptible Power Supply, 2000VA (1.2kW), NETYS PE
    • N° de stock RS 233-2982
    • Référence fabricant NPE-2000-LCD
    la pièce
    425,40 €
    Artesyn Switching Power Supply, LCM300Q -T, 24V dc, 12.5A, 310W, 1 Output, 127 → 374 V dc, 90 → 264 V ac
    • N° de stock RS 819-3620
    • Référence fabricant LCM300Q -T
    la pièce
    189,56 €
    Phoenix Contact STEP POWER DIN Rail Power Supply, 100 → 240 V, 110 → 250 V ac Input, 24V dc dc Output,
    • N° de stock RS 239-5080
    • Référence fabricant 1088491
    la pièce
    64,10 €
    Better World
    MEAN WELL 40W Power Brick AC/DC Adapter 15V dc Output, 2.67A Output
    • N° de stock RS 880-8376
    • Référence fabricant GST40A15-P1J
    la pièce
    31,54 €
    Weidmuller PRO ECO Switched Mode DIN Rail Power Supply, 85 → 264 V ac / 80 → 370V dc ac, dc Input, 24V dc
    • N° de stock RS 923-6501
    • Référence fabricant 1469480000
    la pièce
    97,72 €
    XP Power AC-DC Power Supply, LCW35US05, 5V, 7A, 35W, 1 Output, 85 → 305V ac Input Voltage
    • N° de stock RS 230-7341
    • Référence fabricant LCW35US05
    la pièce
    14,00 €
    RS PRO Embedded Switch Mode Power Supply (SMPS), 12V dc, 6A, 54W, Dual Output, 85 → 264V ac Input Voltage
    • N° de stock RS 262-9105
    la pièce
    25,01 €
    RS PRO Switched Mode DIN Rail Power Supply, 230V ac, 24V dc dc Output, 10A Output, 240W
    • N° de stock RS 136-8321
    la pièce
    96,01 €
    MEAN WELL Switching Power Supply, RSP-320-5RS, 5V dc, 60A, 300W, 1 Output, 124 → 370 V dc, 88 → 264 V ac
    • N° de stock RS 770-4049
    • Référence fabricant RSP-320-5RS
    la pièce
    100,29 €
    RS PRO 96W Plug-In AC/DC Adapter 15V dc Output, 6.4A Output
    • N° de stock RS 210-7463
    la pièce
    43,31 €
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