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Bench Power Supplies

A bench power supply is an essential piece of equipment if you do a lot of electronics or other powered projects on your bench and need a reliable source of power at different voltages. They are very useful tools in testing circuits, as they allow you to adjust the voltage to a specific value depending on what project you are working on. A variable DC bench power supply also allows you to set a maximum current, so if there is a short circuit in your project the bench supply will shut down hopefully preventing any harm to some components in your project. Bench power supplies are versatile, accurate and stable and don’t cost too much.

When it comes to power you have 4 units to be aware of, Current, Voltage, Power and Resistance. It's very important that if you are supplying your circuit with some voltage, your supply can keep up with the current drawn.

Types Of Power Supplies

There are two basic types of power supplies in common use: linear and switch-mode. Both are available for use as bench DC power supplies.

Linear power supplies operate by rectifying AC line power to create DC and then filtering and regulating it to produce a user-selectable voltage or current levels. Linear supplies are heavier because the 50 Hz or 60 Hz transformer and associated filters are physically larger.

Switch-mode power supplies start out the same way, rectifying and filtering AC line input voltage, however, they chop (or "switch") the DC into high-frequency AC. Switch-mode power supplies are significantly smaller, lighter and more efficient than linear power supplies, so they have replaced linear supplies in many applications.

Areas of application:

General laboratory
Education
Industry
Research
Production
Workshops

684 Products showing for Bench Power Supplies

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In Stock RS PRO Digital Bench Power Supply, 5-Output 0 V dc to 30V dc, 150 W, 5 A Max RS stock no. 175-7368 Subtotal (1 unit) R 3 772,92(exc. VAT) R 3 772,92/unit Quantity	-	Bench Power Supply	-	-	-	5A	30V dc	5	-	-	-	-	-	-	150W	-	-	-	-	230V ac	Digital	IEC 320 C14	Digital	0°C	-	4	40°C	-	260mm	156mm	RoHS	110mm	-	-
In Stock RS PRO Digital Bench Power Supply, 5-Output 0 V ac to 60V, 300 W, 5 A Max RS stock no. 175-7366 Subtotal (1 unit) R 8 213,97(exc. VAT) R 8 213,97/unit Quantity	-	Bench Power Supply	-	-	-	5A	60V	5	-	-	-	-	-	-	300W	-	-	-	-	230V ac	Digital	IEC 320 C14	Digital	0°C	-	4	40°C	-	260mm	156mm	RoHS	110mm	-	-
In Stock RS PRO Digital Bench Power Supply, 1-Output 310 V ac to 310V, 36 W, 2.1 A Max RS stock no. 288-9848 Subtotal (1 unit) R 71 286,90(exc. VAT) R 71 286,90/unit Quantity	-	Bench Power Supply	-	-	-	2.1A	310V	1	-	-	-	-	-	-	36W	-	115V	-	-	230V ac	Programmable	-	Digital	0°C	-	-	40°C	-	-	-	RoHS	-	-	-
In Stock RS PRO Bench Power Supply 200 V to 400V, 4000 VA RS stock no. 642-965 Subtotal (1 unit) R 187 833,44(exc. VAT) R 187 833,44/unit Quantity	-	Bench Power Supply	-	-	-	20A	400V	-	-	-	-	-	-	-	4000VA	-	180V	-	-	264V	-	-	-	-	-	-	-	-	-	-	No	-	-	-
Currently unavailable RS PRO Digital Bench Power Supply, 3-Output RS stock no. 123-3572 Subtotal (1 unit) R 25 911,60(exc. VAT) R 25 911,60/unit Quantity	-	Bench Power Supply	-	-	-	-	-	3	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Digital	-	-	1	0°C	-	-	-	-	-	-	-
In Stock RS PRO Digital Bench Power Supply, 5-Output 0 V to 250V, 100 W, 2 A Max RS stock no. 180-4809 Subtotal (1 unit) R 24 495,74(exc. VAT) R 24 495,74/unit Quantity	-	Bench Power Supply	-	-	-	2A	250V	5	-	-	-	-	-	-	100W	-	-	-	-	265V ac	Digital	IEEE	Digital	0°C	-	2	40°C	-	300mm	124mm	RoHS	70mm	-	-
In Stock RS PRO Digital Bench Power Supply, 5-Output 0 V to 250V, 100 W, 2 A Max RS stock no. 180-4808 Subtotal (1 unit) R 23 373,23(exc. VAT) R 23 373,23/unit Quantity	-	Bench Power Supply	-	-	-	2A	250V	5	-	-	-	-	-	-	100W	-	-	-	-	265V ac	Digital	RS232, RS485, USB	Digital	0°C	-	2	40°C	-	300mm	124mm	RoHS	70mm	-	-
In Stock RS PRO Analogue Switching Power Supply, 1-Output 100V, 1500 W, 15 A Max RS stock no. 642-969 Subtotal (1 unit) R 44 404,71(exc. VAT) R 44 404,71/unit Quantity	-	Switching Power Supply	-	-	-	15A	100V	1	-	-	-	-	-	-	1500W	-	85V ac	-	-	265V ac	Switching DC Power Supply	VDE	Analogue	0°C	-	1	50°C	-	447.2mm	43.6mm	EN 55011, EN 55032, EN 61000-3-2, EN 61000-3-12, EN 61000-3-3, EN 61000-3-11, EN 61000-4-11, EN 61000-4-34, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-8, EN 61010-1, EN	423mm	-	-
In Stock RS PRO Digital Bench Power Supply, 5-Output 0 V to 50V, 100 W, 10 A Max RS stock no. 180-4806 Subtotal (1 unit) R 23 837,47(exc. VAT) R 23 837,47/unit Quantity	-	Bench Power Supply	-	-	-	10A	50V	5	-	-	-	-	-	-	100W	-	-	-	-	265V ac	Digital	RS232, RS485, USB	Digital	0°C	-	1	40°C	-	300mm	124mm	RoHS	70mm	-	-
In Stock RS PRO Digital Bench Power Supply, 1-Output 175 V to 350V, 500 VA, 5 A Max RS stock no. 201-0451 Subtotal (1 unit) R 76 234,00(exc. VAT) R 76 234,00/unit Quantity	-	Bench Power Supply	-	-	-	5A	350V	1	-	-	-	-	-	-	500VA	-	100V ac	-	-	240V ac	Switching Power Supply	USB, RS232	Digital	0°C	-	1	40°C	-	-	-	No	-	-	-
In Stock RS PRO Digital Bench Power Supply, 5-Output 0 V to 12.5V, 1.5 kW, 120 A Max RS stock no. 201-0442 Subtotal (1 unit) R 67 451,82(exc. VAT) R 67 451,82/unit Quantity	-	Bench Power Supply	-	-	-	120A	12.5V	5	-	-	-	-	-	-	1.5kW	-	-	-	-	265V ac	Switching DC Power Supply	USB, RS232	Digital	0°C	-	1	50°C	-	447mm	43mm	RoHS	423mm	-	-
In Stock RS PRO Digital Bench Power Supply, 1-Output 0 V ac to 40V, 200 W, 5 A Max RS stock no. 123-3570 Subtotal (1 unit) R 11 087,11(exc. VAT) R 11 087,11/unit Quantity	-	Bench Power Supply	-	-	-	5A	40V	1	-	-	-	-	-	-	200W	-	115V ac	-	-	230V ac	Digital	IEC 320	Digital	0°C	-	1	40°C	-	-	-	No	-	-	-
Last RS stock RS PRO Digital Bench Power Supply, 2-Output 0 V ac to 32V, 192 W, 3 A Max RS stock no. 122-5037 Subtotal (1 unit) R 11 593,35(exc. VAT) R 11 593,35/unit Quantity	-	Bench Power Supply	-	-	-	3A	32V	2	-	-	-	-	-	-	192W	-	-	-	-	230V ac	Digital	IEC 320	Digital	0°C	-	1	40°C	-	306mm	155mm	RoHS	210mm	-	-
In Stock RS PRO Digital Bench Power Supply, 4-Output 0 V ac to 30V ac, 195 W, 3 A Max RS stock no. 123-3561 Subtotal (1 unit) R 20 518,00(exc. VAT) R 20 518,00/unit Quantity	-	Bench Power Supply	-	-	-	3A	30V ac	4	-	-	-	-	-	-	195W	-	100V ac	-	-	230V ac	Digital	IEC 320	Digital	0°C	-	4	40°C	-	-	-	No	-	-	-
In Stock RS PRO Digital Bench Power Supply 0 V to 36V, 680 W, 5 A Max RS stock no. 642-967 Subtotal (1 unit) R 27 684,95(exc. VAT) R 27 684,95/unit Quantity	-	Bench Power Supply	-	-	-	5A	36V	-	-	-	-	-	-	-	680W	-	100V ac	-	-	230V ac	DC Power Supply	UK, VDE	Digital	0°C	-	1	40°C	-	362mm	145mm	EN 55011, EN 55032, EN 61000-3-2, EN 61000-3-12, EN 61000-3-3, EN 61000-3-11, EN 61000-4-11, EN 61000-4-34, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-8, EN 61010-1, EN	213mm	-	-
In Stock RS PRO Bench Power Supply 200 V to 400V, 3000 VA RS stock no. 642-964 Subtotal (1 unit) R 156 808,95(exc. VAT) R 156 808,95/unit Quantity	-	Bench Power Supply	-	-	-	15A	400V	-	-	-	-	-	-	-	3000VA	-	180V	-	-	264V	-	-	-	-	-	-	-	-	-	-	No	-	-	-
In Stock RS PRO Analogue Switching Power Supply 0 V to 160V, 1080 W, 21.6 A Max RS stock no. 642-973 Subtotal (1 unit) R 45 482,00(exc. VAT) R 45 482,00/unit Quantity	-	Switching Power Supply	-	-	-	21.6A	160V	-	-	-	-	-	-	-	1080W	-	0V	-	-	160V	Switching DC Power Supply	USB	Analogue	0°C	-	1	50°C	-	350mm	124mm	EN 55011, EN 55032, EN 61000-3-2, EN 61000-3-12, EN 61000-3-3, EN 61000-3-11, EN 61000-4-11, EN 61000-4-34, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-8, EN 61010-1, EN	214mm	-	-
In Stock RS PRO Digital AC/DC Power Supply, 1-Output 200 V to 400V, 2000 VA, 10 A Max RS stock no. 642-962 Subtotal (1 unit) R 132 950,27(exc. VAT) R 132 950,27/unit Quantity	-	AC/DC Power Supply	-	-	-	10A	400V	1	-	-	-	-	-	-	2000VA	-	180V ac	-	-	264V ac	Digital	VDE	Digital	0°C	-	1	40°C	-	632.6mm	176mm	EN 55011, EN 55032, EN 61000-3-2, EN 61000-3-12, EN 61000-3-3, EN 61000-3-11, EN 61000-4-11, EN 61000-4-34, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-8, EN 61010-1, EN	430mm	-	-
In Stock RS PRO Digital Bench Power Supply 155 V to 310V, 1000 VA, 8.4 A Max RS stock no. 642-960 Subtotal (1 unit) R 59 998,32(exc. VAT) R 59 998,32/unit Quantity	-	Bench Power Supply	-	-	-	8.4A	310V	-	-	-	-	-	-	-	1000VA	-	115V ac	-	-	230V ac	Digital	UK, VDE	Digital	0°C	-	1	40°C	-	560mm	88mm	EN 55011: 2009 +A1: 2010 Class A, EN 61000-3-11: 2000, EN 61000-4-2: 2009, EN 61000-4-3:2006 +A1:2008+A2:2010, EN 61000-4-34: 2007+A1: 2009, EN 61000-4-5: 2006, EN 61000-4-6: 2014, EN 61000-4-8: 2010, EN 61	430mm	-	-
In Stock RS PRO Analogue Switching Power Supply, 1-Output 15V, 1500 W, 100 A Max RS stock no. 642-970 Subtotal (1 unit) R 44 404,71(exc. VAT) R 44 404,71/unit Quantity	-	Switching Power Supply	-	-	-	100A	15V	1	-	-	-	-	-	-	1500W	-	85V ac	-	-	265V ac	Switching DC Power Supply	VDE	Analogue	0°C	-	1	50°C	-	447.2mm	43.6mm	EN 55011, EN 55032, EN 61000-3-2, EN 61000-3-12, EN 61000-3-3, EN 61000-3-11, EN 61000-4-11, EN 61000-4-34, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-8, EN 61010-1, EN	423mm	-	-