Termination and wire entry
The 398800306: The rising cage clamp accepts 16–30 AWG solid or stranded conductors — the cage lifts on screw insertion to grip the full conductor cross-section without cold flow. This termination style is maintenance-friendly: repeated clamp release does not deform the spring element the way a slotted spring can. The interlocking feature on the side keeps adjacent blocks mechanically indexed in a multi-position run.
Mating orientation and board fit
Mating orientation is horizontal with the board plane — the wire entry sits parallel to the PCB surface, which determines the routing clearance required above the board. The 5.08 mm pitch sets the hole pattern and the keep-out width; confirm the board pad diameter matches the cage clamp body OD for a flush solder fill.
How it compares to the Eurostyle 39970 range
The 0399700104 is a 4-position member of the Eurostyle 39970 series — 0.400 inch (10.16 mm) pitch, 60 A per circuit, M4 screw, 6 AWG wire range. It is a different application envelope entirely, not a second-source option for the 39880 series. The pitch gap alone (5.08 vs 10.16 mm) means no direct footprint interchangeability.