Add as many circuits as you need with these terminal blocks and accessories. The terminal blocks clip onto DIN 3 and DIN 1 rail and can be removed without disrupting adjacent blocks. All have screw-clamp terminals for a secure connection, reducing the chance of wire disconnecting due to vibrations, pulls, or snags. Blocks that meet IP10 shield connections from objects larger than your hand; those that meet IP20 protect against objects larger than your fingers.

Blocks with a disconnect tab or knob easily disconnect a circuit without needing to remove installed wire. Use them for testing. End covers fit on the open side of a block to prevent accidental contact with a live circuit.

End stops mount at the end of a group of blocks to prevent movement. Those rated IP20 provide additional protection from objects larger than your fingers.

Jumpers connect terminals on adjacent blocks of the same width. Where listed, end covers should be used on the outermost blocks in the connection. Lateral jumpers are connected to blocks in place of a wire or in addition to a wire at the screw-clamp connection terminal points. Insulated jumpers eliminate the risk of your finger coming into contact with a live circuit, so they’re touch safe.

For technical drawings and 3-D models, click on a part number.