The 284506-3: It's a free-hanging (in-line) plug with a 180° wire entry, so the cable runs straight into the housing — useful when you need to route wires directly into a terminal block header without a right-angle bend. The green housing is a visual cue common in European-style terminal blocks, making polarity or circuit identification faster during commissioning.
Wiring and termination: screw clamp fit
Wire range is 14-30 AWG (0.05-2 mm²), with a strip length of 5-6 mm. That covers most control wiring: 14 AWG for power feeds, 16-18 AWG for general signal, and 30 AWG for fine thermocouple or instrumentation leads.
Peer MPNs 1-2213934-1, 1-2305909-1, and 1-2213935-1 are also active Buchanan-series plugs in bulk packaging. The key difference is position count: the 284506-3 is a 3-position plug. If your BOM calls for 2 or 4 positions, those peers may be a direct fit without changing the pitch or termination style.