TE Connectivity / ABB Entrelec
TE / ABB Entrelec, 1SNK506010R0000, Connector Terminal Blocks-50Pack
This product uses fiberglass, which gives it a sturdy feel without being too heavy.
TE Connectivity / ABB Entrelec,1SNA115661R2100,Connector Terminal Blocks-5Pack
A nice touch with Jm Eagle is the clear labeling on every single item they ship.
TE Connectivity / ABB Entrelec,1SNA173220R0500,Boxes Enclosures & Racks-5Pack
A nice touch is the subtle texture on RITE IN THE RAIN paper for better grip.