This protobloc 2A (breadboard h21b) features 4 rows of 50 interconnected sockets suitable for use as power supply rails. All positions are clearly defined on an alphanumeric grid. The ABS polymer board is mounted onto a rigid base plate complete with three 4mm terminals in red, black and green for power connections. A mounting bracket, which clips into the base, is also provided to accept a variety of components including switches and potentiometers, etc. * v2 (29x5) grid size * 840 holes * 0.3 to 0.8mm wire size acceptability * 3A contact current * ABS polymer body material * Silver nickel contact material * White colour https://elecena.pl/product/27219874/k-h-rh-21b-prototyping-breadboard-840-tie-points 2024-11-11 https://elecena.pl/product/27219874/k-h-rh-21b-prototyping-breadboard-840-tie-points 2026-05-03 https://elecena.pl/product/27219874/k-h-rh-21b-prototyping-breadboard-840-tie-points 2026-07-09 https://elecena.pl/product/27219874/k-h-rh-21b-prototyping-breadboard-840-tie-points 2026-10-12