Hydra DC and DCC 16 channel bus bar with isolate function


Regular price£5.95

  • In stock, ready to ship

Are you baffled by DCC wiring? We have prepared a free helpsheet to assist you. Click here to get your copy.

Struggling to wire all the connection under your layout? Use the Hydra Bus Bar to make things easier!

This is a bus bar with 16 output terminals that works on either DC or DCC. A unique isolate function allows you to switch off sections to help with fault finding in the event of a short.

Red and green LED's indicate the polarity of the incoming supply or the presence of a DCC signal.

In DC mode the bus bar with simply allow multiple connections to the same power supply. The isolate function will switch off everything connected to that board. There is also a pass-through connector to go to the next board in the chain.

In DCC mode simply connect your wires from your controller to the power in terminals and all your dropper wires from your track to any of the 16 screw terminals. The pass-through terminals allow multiple boards to be connected in a chain.

Have you seen our new pre-wired rail joiners? They are perfect for use with the Hydra board!

Note for the isolate function to work correctly in DCC mode it's important that you separate your track into isolated sections and power each section via a single bus bar.

Full instructions with example wiring diagrams for all uses is included.

The maximum current per board is 5A.

The recommended supply is either 5-16VDC or DCC.

The PCB size is 40x125mm

UK delivery

We endeavour to dispatch all orders received before 11am the same day (excluding weekends) However there are occasionally circumstances beyond our control that will affect this.

We always obtain a proof of posting and this will be emailed to you with your order acknowledgement.

Standard Economy Delivery

  • Orders up to £24.99 cost just £3.95 for our standard economy delivery (3-5 days).
  • Orders between £25 and £99.99 are £4.95 (3-5 days).
  • All orders over £100 are sent post free (3-5 days).

24 Hour Tracked Delivery

You can get your item sooner by choosing our 24 hour tracked delivery option for an additional £3.95 on top of the costs above.

Courier Delivery

Some items can only be sent by courier either due to their size or contents. This will be explained in the product description. The delivery costs are the same however the delivery may take a little longer (up to 10 days) All courier deliveries are tracked and you will be sent a tracking number.

International shipping

Not all items we sell can be sent overseas usually because of their contents. This will be noted in the product description. If you order these items for delivery overseas we will not be able to ship your order and your payment refunded.


Standard International Shipping (Tracked) = £14.99 for all orders

Rest of the World

Standard International Shipping (Tracked) = £19.99 for all orders


You may return any item for a refund or exchange with 30 days of ordering. After this time we are unable to offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging and with all the included parts and extras.

To complete your return, we require a receipt or proof of purchase. Please include your order number with the item.
Please do not send your purchase back to the manufacturer. 

There are certain situations where we are unable to accept an item for refund or exchange:
- Book with obvious signs of use 
- CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened 
- Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
- Any item returned to us after 30 days since ordering.


You must contact us in the first instance to arrange your refund or exchange. Please email sales@hobbytrax.co.uk with details of your order number. We will then provide details for the items return.

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. 
If you are approved, then your refund will be processed, and a credit will automatically be applied to your original method of payment, within 5 working days. We are unable to make a refund payment to a different card to the one you paid with.

Late or missing refunds
If you haven’t received a refund yet, first check your bank account again. 
Then contact your credit card company, it may take some time before your refund is officially posted. 
Next contact your bank. There is often some processing time before a refund is posted. 
If you’ve done all of this and you still have not received your refund yet, please contact us at sales@hobbytrax.co.uk

Sale items
Only regular priced items may be refunded, unfortunately sale items cannot be refunded. 

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email to sales@hobbytrax.co.uk with details of your order to arrange your exchange.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. 

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Hydra DC and DCC 16 channel bus bar with isolate function
Hydra DC and DCC 16 channel bus bar with isolate function
Hydra DC and DCC 16 channel bus bar with isolate function
Hydra DC and DCC 16 channel bus bar with isolate function
Hydra DC and DCC 16 channel bus bar with isolate function

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