This system consists of single SB-terminal bases or multi-sockets (SB-termination board) where the zener barriers (SB-barriers) are plugged in. The complete system  is mounted on the 35mm DIN Rail.

Your benefits are:

• Prewiring at the installation
• Easy replacement
• Disconnection of the field loops by unplugging the barrier
• Low high allows installation of low profile cabinets