WAGO 280-837 4-conductor ground terminal block Brand: Wago. Part Number: 280-837. WAGO Ground Terminal Block, Series: 280, 800 V AC, 20 A, 28 to 12 AWG Wire, 0.31 to 0.35 in Wire Strip Length, Ground Terminal, DIN Rail Mounting, Green/Yellow, 1.102 in H x 0.197 in W x 2.953 in D Dimensions. Additional Description: WAGO-280-837 4-CONDUCTOR GROUND TERMINAL BLOCK; 2.5 MM ; CENTER MARKING; FOR DIN-RAIL 35 X 15 AND 35 X 7.5; CAGE CLAMP ; 2,50 MM ; GREEN-YELLOW 51162264. Catalog Description: 4-conductor ground terminal block; 2.5 mm²; center marking; for DIN-rail 35 x 15 and 35 x 7.5; CAGE CLAMP®; 2,50 mm²; green-yellow..