What This Terminal Block Does in Your Assembly
The 284093-4: It terminates solid or stranded wire from 16 AWG down to 30 AWG using a rising cage clamp — the screw pushes a clamp plate down on the wire, not the conductor itself, so you get a gas-tight connection without nicking strands. Green housing is standard for ground or chassis connections in control panels and power distribution.
Sizing the Wire and Setting the Torque
Wire range is 16-30 AWG — the cage clamp accepts a full range of solid and stranded conductors. The M3 screw takes 0.68 Nm (6 Lb-In) of torque. That spec is tight enough to hold the wire under vibration but low enough to not strip the brass threads in the PA66 housing. The clamp and screw are both brass with nickel plating, so corrosion on the contact path is minimal in indoor panel environments.
Ganging Multiple Blocks Together
The side interlocking feature lets you snap multiple 284093-4 blocks together into a continuous strip without a separate end bracket or DIN rail adapter. Each block locks into the next one side-to-side, so a 4-position block becomes part of an 8-, 12-, or 16-position assembly on the same PCB footprint spacing.
It is a current-production part from the Buchanan series, sourced through independent distribution.