The current SNAP IN terminal block portfolio consists of Single-Tier feedthrough and ground terminal blocks with a connectable wire range of 20 to 14 Gauge. All copper wire types, even without ferrules can be connected completely tool-free. Accessories like pluggable cross-connectors are shared between the standard PUSH IN and the SNAP IN terminal block portfolios. These terminals can even be mixed in a DIN rail assembly and cross-connected with each other.