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

9562 Produits présentés pour Power Supplies

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1 sur 479
En stock
XP Power 36 W AC/DC Adapter Interchangeable 24V dc Output, 1.5 A
  • N° de stock RS 123-4877
  • Référence fabricant VER36US240-JA
Sous-total (1 unité)
23,08 €(TVA exclue)
23,08 €/unité
En stock
Phihong 2 Port 1 Port PoE Injector, 240V ac Input 60 W, 56V dc Output, 1.07 A
  • N° de stock RS 204-7273
  • Référence fabricant POE60U-1BTE
Sous-total (1 unité)
81,69 €(TVA exclue)
81,69 €/unité
En stock
Crouzet MPS24 Switched Mode PLC Power Supply 100V ac, 240 V ac 24V dc, 1.25 A Output
  • N° de stock RS 197-4295
  • Référence fabricant 89451003
Sous-total (1 unité)
60,91 €(TVA exclue)
60,91 €/unité
En stock
RS PRO 12 W AC/DC Adapter AC/DC Adapter 2-Pin (EU) 9V dc Output, 1.33 A
  • N° de stock RS 206-4915
Sous-total (1 unité)
12,77 €(TVA exclue)
12,77 €/unité
En stock
RS PRO 15 W AC/DC Adapter AC/DC Adapter 2-Pin (EU) 5V dc Output, 3 A
  • N° de stock RS 206-4924
Sous-total (1 unité)
13,82 €(TVA exclue)
13,82 €/unité
En stock
Aten 160V ac, 300 V ac Input Rack UPS, 1000 VA, OL1000HV 1 kW OL
  • N° de stock RS 285-4498
  • Référence fabricant OL1000HV
Sous-total (1 unité)
1 002,95 €(TVA exclue)
1 002,95 €/unité
En stock
XP Power 150 W AC/DC Power Supply AC/DC Adapter 24V dc Output, 6.25 A
  • N° de stock RS 121-7062
  • Référence fabricant AHM150PS24
Sous-total (1 unité)
123,69 €(TVA exclue)
123,69 €/unité
En stock
APC 230V ac Input Floor UPS, 1200 VA, BVX1200LI-GR 650 W Back-UPS BX
  • N° de stock RS 287-7225
  • Référence fabricant BVX1200LI-GR
Sous-total (1 unité)
151,49 €(TVA exclue)
151,49 €/unité
En stock
MEAN WELL Switching Power Supply, IRM-30-12ST 12V dc, 2.5A, 30 W, Input 85V ac to 264V ac
  • N° de stock RS 135-8951
  • Référence fabricant IRM-30-12ST
Sous-total (1 unité)
20,90 €(TVA exclue)
20,90 €/unité
En stock
RS Better World
APC 160V, 286 V Input Stand Alone Uninterruptible power supply, 3000 VA, Smart-UPS SMT 2.7 kW
  • N° de stock RS 188-0191
  • Référence fabricant SMT3000IC
Sous-total (1 unité)
2 600,75 €(TVA exclue)
2 600,75 €/unité
En stock
RS PRO 24 W AC/DC Adapter 12V dc Output, 2 A
  • N° de stock RS 175-3271
Sous-total (1 unité)
20,45 €(TVA exclue)
20,45 €/unité
Temporairement en rupture de stock
Block POWER ADVANCED Primary-Switched Mode Power Supply DIN Rail Power Supply 264V ac AC/DC Input 24V dc, 20 A Output DC
  • N° de stock RS 266-410
  • Référence fabricant PCC-0124-200-2
Sous-total (1 unité)
168,74 €(TVA exclue)
168,74 €/unité
En stock
Siemens LOGO POWER Switched Mode DIN Rail Power Supply 264V ac AC Input 24V dc, 1.3 A Output DC 31 W
  • N° de stock RS 136-5296
  • Référence fabricant 6EP3331-6SB00-0AY0
Sous-total (1 unité)
61,31 €(TVA exclue)
61,31 €/unité
En stock
Eaton Environmental Monitoring Probe UPS Monitoring Probe for use with UPS
  • N° de stock RS 206-4757
  • Référence fabricant EMPDT1H1C2 Environmental Monitoring Probe gen 2
Sous-total (1 unité)
196,50 €(TVA exclue)
196,50 €/unité
En stock
Friwo 12 W AC/DC Adapter Interchangeable 6V dc Output, 2 A
  • N° de stock RS 117-6616
  • Référence fabricant EDV1898116RS
Sous-total (1 unité)
41,73 €(TVA exclue)
41,73 €/unité
En stock
Phoenix Contact Redundancy Module for use with Parallel Connection of Two Power Supply Unit, UNO-DIODE/5-24DC/2X10/1X20
  • N° de stock RS 168-2502
  • Référence fabricant 2905489
Sous-total (1 unité)
44,45 €(TVA exclue)
44,45 €/unité
Temporairement en rupture de stock
MEAN WELL Switching Power Supply, RSP-2400-48 48V dc, 50A, 2.4 kW, Input 180V ac to 370 V dc, 264V ac
  • N° de stock RS 705-9876
  • Référence fabricant RSP-2400-48
Sous-total (1 unité)
435,70 €(TVA exclue)
435,70 €/unité
En stock
MEAN WELL SDR Switched Mode DIN Rail Power Supply 264V ac AC Input 28V dc, 20 A Output DC 480 W
  • N° de stock RS 765-4676
  • Référence fabricant SDR-480P-24
Sous-total (1 unité)
319,42 €(TVA exclue)
319,42 €/unité
En stock
MEAN WELL Switching Power Supply, RSP-320-12 12V dc, 26.74A, 320 W, Input 88V ac to 370 V dc, 264V ac
  • N° de stock RS 770-4052
  • Référence fabricant RSP-320-12
Sous-total (1 unité)
100,67 €(TVA exclue)
100,67 €/unité
En stock
PULS DIMENSION Switched Mode DIN Rail Power Supply 240V ac AC Input 28V dc, 10 A Output DC 240 W
  • N° de stock RS 514-5574
  • Référence fabricant QS10.241
Sous-total (1 unité)
313,91 €(TVA exclue)
313,91 €/unité
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