DIN Rail Power Supplies

DIN Rail Power Supplies are a common requirement for a variety of industries. With an easy to understand mounting standard that is the same as other electrical components, they are one of the most popular options for power supplies.

With that popularity comes a wide amount of choice, with countless manufacturers, ranges and solutions available it’s easy to misunderstand what makes a unit different to other options. We are here to help you with that, which is why you can find information at:

• Our Power Supplies Page – You can view a wide selection of our available power supplies from our search page.
• Our e-commerce site – Our e-commerce site Simply Power Supplies is designed for easy purchase of our range of DIN Rail power supplies. You can easily reach our DIN Rail selection here, with more information available at links below.
• Contact Us – If you can’t find the unit you are looking for, please don’t hesitate to contact us. We are UK based engineers who are here to help you with your requirements.

Wide Selection of Manufacturers

With years of partnership with major manufacturers, we are able to offer honest advice across a wide range of power supply manufacturers. These include:

• PULS – High end range of power supplies. Available with many variations on their standard range to include wide input ranges, decoupling functionality and advanced certifications such as Ex.
• Mean Well – One of the largest power supply manufacturers, they are synonymous with mass manufactured power supplies with high reliability. We have access to the one of the largest Mean Well stockists within the UK, whilst still providing high expertise on the ranges.
• Reign Power – A range we bring in to the UK exclusively. These are our lowest cost option for DIN Rail Power Supplies. With over 10 years of cooperation with Reign Power, we are able to offer very competitive prices without compromising on quality.

Why Choose Us?

We appreciate there are options for DIN Rail Power Supplies, which is why we aim to be experts in the products we offer. We don't want to just be box shifters, we want to offer a service that understands what you require and why that's important to you.

• We Can Deal With Any Quantity Of Units – From a 1 off unit for hobbyists to large scale projects, we can deal with any number of power supplies. If you need DIN Rail power supplies, we can do it.
• Extensive Knowledge Of The Market and Requirements – With 25 years in business, we’ve been around long enough to know the obsolete units, the changes in power supply design and the needs of your customers. We’re here to help you with that.
• UK Stock – With hundreds of power supplies in UK stock, we have solutions ready for your power requirements.
• Problem Solvers By Design – We understand that power supplies and replacements can be needed at short notice, which is why we pride ourselves on being as flexible to your needs as possible.
• Knowledge Of Supplementary Parts – Projects can quickly become more and more complex, which is why we make sure we know the solutions available for your requirements. From DC UPS additions to parallel functionality, we are here to help you with your growing projects.

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Frequently Asked Questions

What is a DIN Rail Power Supply?

A DIN Rail Power Supply is a device that provides a stable DC output to industrial and automation systems, designed to mount on a standard DIN rail such as those in control panels. It converts an AC input (typically from a mains supply such as 230Vac or 115Vac) into a DC output voltage (such as 12V, 24V and 48V) to power a wide range of equipment such as sensors, controllers, and actuators. DIN rail power supplies are easy to install and commonly used in a wide range of industrial automation.

How do I choose a DIN Rail Power Supply?

There are 2 main aspects that help you select a suitable power supply:

1. Output Voltage: Check what the required output voltage for your load or device is. Some popular options are 12Vdc, 24Vdc and 48Vdc.

2. Output Power Requirement: How much power does your load require. This is displayed as either wattage (W) or current (A). You need to select a power supply with a larger wattage and current than your required load.

Some more points to consider are:

1. Input Voltage: Ensure the power supply supports your input type. If you are in the UK, using a mains input this would be 230Vac, but most power supplies are wide ranging input (100Vac-240Vac) meaning they are suitable for use worldwide.

2. Physical Size and Mounting: Ensure it fits your DIN rail and control panel space.

3. Environment: Choose a supply rated for the operating temperature, humidity, and conditions (e.g., industrial or outdoor).

4. Certifications and Protections: Look for safety certifications and built-in protections like overvoltage, overcurrent, and short-circuit protection.

What does DIN Power mean?

We view DIN Power as referring to the power supplied by devices mounted on a DIN rail, the standardised metal rail used in control panels and industrial enclosures. These devices, such as DIN Rail Power Supplies or DIN Rail DC/DC Converters, provide electrical power to automation and industrial systems. The term emphasises compatibility with the DIN rail system for easy installation and integration.

What are the benefits of DIN Rail?

The advantages of using DIN Rail include:

1. Ease of Installation: Snap-on mounting simplifies setup and replacement of devices.

2. Modularity: Enables easy addition or removal of components for scalable systems.

3. Standardised Compatibility: DIN Rail mounting is supported by a wide range of devices such as MCBs and terminal blocks.

4. Durability: Provides a stable and secure mounting solution.

These features make DIN rail power supplies ideal for efficient, organised, and reliable electrical and automation system installations.

What does rail mean in PSU?

Rail can refer to a number of different contexts for Power Supplies or PSU. Some of these are:

• A rail can refer to a specific output voltage line that delivers power to connected devices. Each rail provides a regulated voltage, such as 12V, 5V, or 3.3V, which is essential for powering different components. This is typically referred to in computer PSU.

• A rail can refer to the DIN Rail a power supply can mount to, and can sometimes be shortened to Rail Power Supply. This is the definition we would normally see in an industrial setting.

• A rail can refer to a railway approved power supply. Certain rail standards such as EN 20124-1 and EN 50155 are required for use in railway applications.

Do DIN Rails carry power?

Din Rail itself is not powered. Whilst there are DIN Rail Power Supplies that supply power, this is not to the physical metal rail itself. Whilst rail can refer to a specific output line in electrical terms, DIN Rail is not this, and is in fact a physical piece of metal for electrical components to be mounted on.

Why is it called DIN Rail?

The term DIN Rail comes from the Deutsches Institut für Normung (DIN), the German Institute for Standardisation, which established the original specifications for this type of mounting rail. DIN rails are standardised metal strips used to mount electrical and industrial control equipment. The name reflects its standardised dimensions and design, ensuring compatibility across various devices and manufacturers.

What is a DIN Rail Power Supply used for?

A DIN Rail Power Supply is used to provide a stable DC voltage to industrial and automation systems. It mounts on DIN rail in control panels and converts input AC voltage into a regulated DC output voltage, such as 12V, 24V, or 48V DC. Common applications include powering sensors, controllers, relays, actuators, PLCs (Programmable Logic Controllers), and other industrial equipment in environments like factories, buildings, and telecommunications cabinets.