End clamps also known as End Stoppers are used to hold a stack of terminal blocks on the mounting rail. Depending on the profile of the terminal block stack and the mounting channel, end clamps are available in different sizes and also in different designs. They are either made from Polyamide or Mild Steel duly plated. It is recommended that while selecting the end clamps. due consideration is given to the strength of the support required by the clamps. This is to ensure that the selected end-clamps firmly support the terminal block stack and prevent its movement on the rail and also its dislodging from the rail during normal handling or wiring.