Cables Access - Front or Rear Access
There are two types of cable access definitions for Switchgear, one where cables are all terminated from the front of the panel and one where they are terminated at the rear
Typically Rear Access switchgear tends to be deeper in size and shorter in length.
It is required that you have access to the switchboard, a minimum one meter at the rear and at the front (as per regulations, if your switchboard has Draw-Out ACB's 1350mm is the minimum at the front).
Remember you need to be able to get from the front of the panel to the back so typically a walkway either side of the panel is needed in most situations.
Front Access Switchgear tends to be shallower in depth and longer in length.
It is required that you have access to the switchboard, a minimum one meter at the front (as per regulations, if your switchboard has Draw-Out ACB's 1350mm is the minimum at the front).
Remember you do NOT need to be able to get from the front of the panel to the back as typically most Front Access products are pushed up against a wall
There is little to choose from between the two, little apart from spatial constraints and what is suitable to your desired location, your switchroom. Commonly Front Access can be a little bit cheaper, however, this is dependant on your initial design.
How do I specify it?
Typically this is either down to your specific requirements or more commonly the Switch Room layout. Therefore selecting the correct switchboard type to fit the application, otherwise, there are very little differences or advantages between the two types.
Cable Access Configuration – Front Access, a minimum of 1000mm clear space is to be allowed as a minimum to the complete front of the switchboard. Where ACB's are fitted within the product 1350mm of clear space is to be allowed at the front of the switchboard
Cable Access Configuration – Rear Access,
a minimum of 1000mm clear space is to be allowed as a minimum to the complete front, one side and rear of the switchboard. Where ACB's are fitted within the product 1350mm of clear space is to be allowed at the front of the switchboard.
The side of the switchboard is not particularly essential, as long as there is comfortable access to the rear from the front, this being on the rear access board this would suffice.
It is also worth mentioning here, if known, where the cable access will be, which is typically top or bottom, or both, focusing on the clear access above or below for the bending radius and termination of cables.