Terminal Feed-Thru Blocks, Standard: Type - Standard Feed-Thru Terminal Block; Configuration/Wiring - Triple Tier 3-Circuit 6-Wire; Construction Style - IEC; Rating - Voltage - 500V; Rating - Amps - 20A; Wire Range - 28-12 AWG; Model Type - ST 2.5-3L BU; Wire Terminal - Spring Clamp; Housing Material - Polyamide 6.6; Housing Finish - Blue; Mounting - DIN Rail, 35mm; Block Width - mm - 5.2 mm; Block Width - in - 0.204"; Block Length - in/mm - 3.91/99.5; Manufacturer Series - ST Series