Power Supplies & Transformers

RS offers 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 PSUs.

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 to be powered.

What is the difference between types of power supply?

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 power 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
Power Supplies
Power Supplies

Renewable Energy
Renewable Energy

Transformers
Transformers

Voltage Converters
Voltage Converters

27649 표시되는 제품 Power Supplies & Transformers

1 / 999+
재고있음
Comatec 100 VA DIN Rail Transformer, 230 V ac Primary, 24 V ac Secondary, EN55022/B, EN61558, 89/336, EN61000-4, CE
  • RS 제품 번호 891-9236
  • 제조사 부품 번호 TBD2.0100.24.F8
Subtotal (1 unit)
₩109,902.00
₩563.60/unit
제조사가 재고 비축중
Phoenix Contact UNO-PS/350-900DC/24DC/60W DC/DC Converter, 24V dc/ 2.5 A, 1000V dc Input, 350V Input, DIN Rail 60 W, 70
  • RS 제품 번호 123-4309
  • 제조사 부품 번호 2906300
Subtotal (1 unit)
₩248,430.00
₩1,274.00/unit
재고있음
RS PRO 100 VA DIN Rail Transformer, 115 to 400 V ac Primary, 24 V ac Secondary, IEC/BS/EN 61558-1, CE, AS/NZS 61558.2.6,
  • RS 제품 번호 797-5942
Subtotal (1 unit)
₩150,891.00
₩773.80/unit
재고있음
Block 2 Output 100 VA Chassis Mount Transformer, 2 x 12 V ac, cUL 506, VDE, VDE 0570, EN 61558, UL 506
  • RS 제품 번호 278-7030
  • 제조사 부품 번호 SIM 100
Subtotal (1 unit)
₩164,755.50
₩844.90/unit
제한된 재고
XP Power Switching Power Supply, ECF40US24 24V dc, 1.67A, 40 W, Input 80V ac to 264V ac
  • RS 제품 번호 134-9079
  • 제조사 부품 번호 ECF40US24
Subtotal (1 unit)
₩50,134.50
₩257.10/unit
재고있음
RS PRO 22.5 W AC/DC Adapter EU, UK 9V dc Output, 2.5 A
  • RS 제품 번호 360-643
Subtotal (1 unit)
₩29,515.20
₩151.36/unit
재고있음
TRACOPOWER TEP 75WI DC/DC Converter, 24V dc/ 3200 mA, 36V dc Input, 9V Input 75 W, Through Hole, 75 °C Max Temp -40 °C
  • RS 제품 번호 706-6388
  • 제조사 부품 번호 TEP 75-2415WI
Subtotal (1 unit)
₩189,754.50
₩973.10/unit
재고있음
EOS Switching Power Supply, LFVLT60-1001 12V dc, 5A, 60 W, Input 90V ac to 264V ac
  • RS 제품 번호 377-6895
  • 제조사 부품 번호 LFVLT60-1001
Subtotal (1 unit)
₩173,296.50
₩888.70/unit
재고있음
RS PRO 36 W AC-DC Converter Power Supplies AC/DC Adapter 30V dc Output, 1.2 A
  • RS 제품 번호 139-2352
Subtotal (1 unit)
₩47,599.50
₩244.10/unit
재고있음
Chinfa AMR1 Switched Mode DIN Rail Power Supply 264V ac AC Input 12V dc, 830 mA Output DC 10 W
  • RS 제품 번호 789-4023
  • 제조사 부품 번호 AMR1-12
Subtotal (1 unit)
₩51,714.00
₩265.20/unit
제한된 재고
XP Power Switching Power Supply, ECE60US05-S 5V dc, 10A, 50 W, Input 85V ac to 264V ac
  • RS 제품 번호 122-7683
  • 제조사 부품 번호 ECE60US05-S
Subtotal (1 unit)
₩150,969.00
₩774.20/unit
제한된 재고
XP Power Switching Power Supply, ECS130US15 15V dc, 8.7A, 130 W, Input 120 V dc, 80V ac to 264V ac
  • RS 제품 번호 122-7126
  • 제조사 부품 번호 ECS130US15
Subtotal (1 unit)
₩139,854.00
₩717.20/unit
제한된 재고
XP Power G DC/DC Converter, 300V/ 5 mA, 12V Input, 12V Input, Through Hole, 1.5 W, 60 °C Max Temp -10 °C Min Temp
  • RS 제품 번호 136-0447
  • 제조사 부품 번호 G03
Subtotal (1 unit)
₩195,526.50
₩1,002.70/unit
단종되는 중
Artesyn Switching Power Supply, LPT45 3 Output 15V dc, 700mA, 40 W, Input 85V ac to 300V dc
  • RS 제품 번호 183-0054
  • 제조사 부품 번호 LPT45
Subtotal (1 unit)
₩91,942.50
₩471.50/unit
재고있음
Omron Switching Power Supply, S8VK-T12024 24V dc, 5A, 120 W, Input 450V ac to 264V
  • RS 제품 번호 181-3791
  • 제조사 부품 번호 S8VK-T12024
Subtotal (1 unit)
₩246,304.50
₩1,263.10/unit
재고있음
Siemens SITOP PSU8200 Switched Mode DIN Rail Power Supply 500V ac 24V dc, 40 A Output 960 W
  • RS 제품 번호 203-4068
  • 제조사 부품 번호 6EP3437-8SB00-0AY0
Subtotal (1 unit)
₩1,261,065.00
₩6,467.00/unit
재고있음
Siemens SIMATIC PM-1507 Switched Mode DIN Rail Power Supply 132V ac AC Input 24V dc, 8 A Output DC 192 W
  • RS 제품 번호 880-1369
  • 제조사 부품 번호 6EP1333-4BA00
Subtotal (1 unit)
₩532,662.00
₩2,731.60/unit
재고있음
Phoenix Contact STEP-PS/1AC/24DC/2.5 Switched Mode DIN Rail Power Supply 264V ac AC Input 29.5V dc, 2.5 A Output DC 60 W
  • RS 제품 번호 540-731
  • 제조사 부품 번호 2868651
Subtotal (1 unit)
₩174,271.50
₩893.70/unit
재고있음
RS PRO 2 Output 100 VA Chassis Mount Transformer, 24 V ac, AS/NZS 61558.1, RoHS, IEC/BS/EN 61558-1, CE, AS/NZS
  • RS 제품 번호 504-331
Subtotal (1 unit)
₩105,085.50
₩538.90/unit
제한된 재고
Myrra 5 Output SMPS Transformer 2.5 W Output, 85 to 370 V ac, 265 V, 12 V
  • RS 제품 번호 792-4350
  • 제조사 부품 번호 47124
Subtotal (1 unit)
₩22,737.00
₩116.60/unit
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