In Spring clamp Terminal Blocks the wire is held directly against the ccurrent bar by pre-stressed spring clamps.
The spring clamp is operated by using a screw driver to Provide an acess to the wire through an opening in the spring clamp. the inserted wire gets clamped on to the current bar when the screw driver is removed.
Cross connection is done with insulated Push -in / Wire type shorting links. Step down shorting links are used for shorting spring clamp Terminal
Blocks of different sizes.