Instruments, industrial control devices, or any other application that requires linking discrete wires to pc boards can be handled with minimal downtime and maximum accuracy, it's claimed, when using firm's BU02 and BU04 Series of pluggable terminal blocks. The devices are strong, compact, single-mold units designed for demanding industrial use and offers 5.08-mm pin spacing. Each connector has two locking tabs that snap over a lip on the header, holding the connector firmly in place.