What is potting? Why pot?

A liquid potting compound is applied over a bordered PCB until it covers the electrical circuit of the components. This compound cures and solidifies effectively these components into a solid mass. This protects the electrical circuit from moisture, dust, contaminants, vibrations and impact damage.

It enhances electrical insulation, assembly robustness during transportation and installation, and flame retardation. Potted PCB assemblies significantly increase the safety factor against electrical shocks at the point of usage.

WECO's terminal blocks, headers and pin receptacles for potting processes are designed to accommodate the potting material without affecting free accessibility to wire entry ports.

There are two ways of installing terminal blocks dedicated for potting (see picture): 1. Terminal block is mounted on PCB edge and mating plug-in contact is facing outside of the board. 2. Terminal block is installed inside of the potting walls.

This quick reference guide shows our terminal blocks for potting processes. More details for each product can be found on the individual product pages.