Generally a terminal block is mounted on a printed circuit board (PCB) or there is a panel that is screwed into the wall that it’s able to snap onto. But here are some other mounting options for your consideration:
1. Rail- DIN (Deutsches Institut fur Normung) rails, in one form or another, are commonly used when you are mounting the terminal blocks. As you can tell from its name it is German and the rails design is their standard. The DIN does have several other sizes depending on your needs.
Miniature Top-Hat Rail – is around 15 millimeters or .05 feet wide and is able to handle terminal blocks up to 300 volts.
G32 Rail – the rail is 32 millimeters or .104 feet wide and is shaped like the letter ‘G.’ It is able to handle up to 600 volts from a terminal block.
Top-Hat Rail – has the same shape as its miniature brother but is going to be 35 millimeters wide or .11 feet. Along with its increase in size it is able to handle more voltage with 600 volts.
2. PCB Mounts, also called electronic blocks, are the other form of mounting. A terminal block will sometimes have been designed to PCB, pins may have been inputted so that they can be mounted through the circuit board, or you may just be able to plug it into a pin strip located on the circuit board.