The 284065-4: The 0.200" (5.08 mm) pitch is the first dimension to check against your terminal block layout — it sets the hole pattern and the clearance between adjacent wire entries. At 12 A per contact with a 300 V UL rating, this header handles typical industrial control panel loads, but the tin contact finish means the current ceiling is derated if the ambient temperature pushes above 85 °C; the -40°C to 110°C operating range covers most cabinet environments. Two levels, 4 positions per level, for a total of 8 circuits — the vertical orientation keeps the wire entry axis perpendicular to the board, which simplifies routing in a multi-row terminal strip.
Ganging multiple headers with the interlocking side
The interlocking (side) feature lets you snap multiple 284065-4 headers together side-by-side to build a wider terminal block assembly without a custom moulding. Each header remains independently replaceable — useful when a single position fails in the field and you don't want to scrap the whole strip.