These are all types of circuit protection.

RCD – Residual Current Device

This is used to monitor the difference between the live and neutral. Should there be a difference above the desired threshold, it is assumed that this leakage is down to a fault and the device will trip out to protect the system and users. This will generally have a test button that should be pressed periodically to ensure it is working correctly.

RCBO – Residual Current Breaker with Overload protection

This device is used to combine an RCD and MCB. This offers protection against leakage between the live and neutral like an RCD, but also protects the cabling and connections against an overload of current like an MCB. This will generally have a test button that should be pressed periodically to ensure it is working correctly.

MCB – Miniature Circuit Breaker

This is used to monitor the current passing through the circuit. Should the demand for power be greater than the designed load on the circuit, due to a fault or too many appliances being connected, this will trip out.

MCCB – Moulded Case Circuit Breaker

This operates in the same way as an MCB, but has the capability for more current to pass through. These are generally for applications above 125A and have a larger air gap when disconnected.

Typically, all final circuits should have RCD protection of 30mA. This can be achieved using a fixed value RCD or RCBO or by using a variable RCD.

Why do I want a variable RCD?

We offer variable RCDs on our Three Phase outputs to allow for Cumulative Leakage while still offering protection against faults. Should a Three Phase appliance be connected to one of these outputs, it becomes a final circuit and the RCD can be set to 30mA. If this output is used to feed another distribution board, the RCD can be set to a higher amount to protect the cabling and the final circuits be set to 30mA further down the line.

What is Cumulative Leakage?

This is a term used where the expected leakage of multiple circuits is added together. In an ideal system there is no leakage however in reality systems often have a small amount of leakage. This low level of leakage on a final circuit may not trip out a 30mA RCD, but if you were to combine the leakage from several final circuits, this may trip out a 30mA RCD. To prevent this nuisance tripping, the RCD can be set to a higher current provided there is 30mA protection further down the line.

Almost all of the cable and distro is manufactured by us, this means that you can customise your order to make it how you want it. We keep a stock on hand of most products so that we can send out your order as soon as we receive it, but if you want any custom designs or lengths, these take a little longer.

Off the shelf products are dispatched within a day or 2 of receiving the order.

Custom products are manufactured within a week of design approval.

We use Stripe to manage our online payments meaning you can pay with many different Credit / Debit cards. We also offer Direct Bank Transfer but this may affect how fast we can dispatch your goods.

>> Find out about our Shipping Methods >> and how your payment choice can affect the dispatch times.

Yes! We are highly experienced in designing and building custom distribution boards for sectors including events, exhibitions, building sites and catering. We will take your requirements and design the distro to fit your needs and can even mount them in flight cases so they can be safely transported. We only use high quality components that we’ve tested for durability to ensure our distribution boards last a long time, even when used in tough environments such as building sites and touring events.

Why not get in touch for a custom quote? >> Start a custom quote >>

All of our cables come with 12cm of clear heat shrink at either end of the cable. This means you can include your own branding and your own cable management labelling, such as colour coding or other length identifiers. All you’ll need is a printer and a heat gun!

>> Head over to our store to buy your next batch of cables! >>

Yes, we offer spares for our distros and cables, although you’ll find you shouldn’t need them that often! We are continuously adding new products to our store, but if you can’t find what you’re looking for, send a message and we’ll point you in the right direction!

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The following is our typical policy and we may deviate from this in certain situations.

Small item orders (under 30kg) are dispatched within 48 hours using a next day courier if they are in stock. We sometime mark items in stock if we have the parts to assemble them, such as cables and aim to dispatch these within the same time period.

Larger item orders (over 30kg) are dispatched within 48 hours using a next day courier if they are in stock. These may be shipped by a 2 person courier or on a pallet.

We also offer Local Collection as an option. Collection will need to be pre-arranged from our warehouse facility. If you place an order using this option, please email us to arrange a time to collect.

For any items marked as Out Of Stock, please contact us for an estimated delivery date. We may be awaiting parts and may be able to use alternatives or they may be scheduled for manufacturing which can be brought forward.

Any custom distro orders with have a unique lead time which will be discussed during the quotation stages.

On our website, you will currently only find H07RN-F cable. This is the standard for the event industry as set out in BS7909. We can make other cables to order, so please send us a message for a quotation.

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