Where this strip sits in the Eurostyle 39100 series
The Molex 391001810 is the 10-circuit member of the Eurostyle 39100 enclosed-barrier terminal strip family. The 0.315" (8.00 mm) pitch distinguishes it from the 12-position sibling 0391002012, which uses a wider 0.394" (10.00 mm) pitch — meaning the two are not drop-in interchangeable; the panel cutout and wiring pitch plan must be matched to the specific part being ordered.
What the key ratings mean for the fit
At 20 A per circuit the strip handles the branch-power connections typical in industrial control panels — the enclosed barrier protects live terminations from accidental shorting during maintenance, which is the primary reason this form factor is specified in factory-floor and process-control enclosures rather than in low-current signal wiring. The dual-row layout with top-screw entry accepts 12–22 AWG conductors; the 20-connector entry count (two entries per circuit) allows field routing of two wires per position — useful for daisy-chain or mid-point take-off wiring without a separate jumper bar. The PA66 (Nylon 6/6) body carries a UL94 V-0 flammability rating and operates from –40 °C to 105 °C, placing it squarely in the envelope for most industrial enclosure environments, including unheated cabinetry and equipment with convection cooling only. Zinc-plated terminal screws torque against steel — verify the recommended torque specification in the product drawing before commissioning, especially in vibrating environments where under-torqued screws work loose on fine-strand flexible cable.
Sourcing posture
Closest same-series peer — and why the pitch matters
The 0391002012 is the closest same-series peer: also white, enclosed-barrier, dual-row, top-screw entry, Active, and ROHS3 Compliant. But it is a 12-position strip at 0.394" (10.00 mm) pitch carrying 30 A per circuit, and it accepts a wider 10–18 AWG wire range. The pitch delta alone — 8.00 mm vs 10.00 mm — makes the panel cutout non-interchangeable; ordering the 0391002012 as a substitute for a panel cut for 8 mm pitch will require a new hole pattern or rework. There is no direct parametric upgrade path between these two positions within the same series.