Since 1983 Home About Us Lines Carried Product Index Sale Items Search This Site Request Form FAQ Services Terms & Conditions Policies Line Card (pdf) Terms (pdf) Credit Application (pdf) You are here: > Lines Carried > Blockmaster > Barrier & Panel Style Terminal Blocks > Tri-Barrier Blocks > ST33 Series > ST331 Tri-Barrier Blocks -  ST33 Series ST331 PCB Terminal Blocks - 8.25mm centers 20A@300V 12-22AWG Features: Tri-barrier construction Mounting ends available UL recognized Accepts 12 AWG Electrical Current: 20A @ 300V Wire Range: 12-22 AWG Operating temp: -40°C - +105°C Withstanding: 2000V AC per min. IR: >500MW (500V DC) Torque: 7 lb-in. Materials: Housing: Polyamide 66 UL94V-0 Terminal: Brass, Tin plated Screw: M3 combo head w/captive sem plate Screw material: Steel Ni plated Positions available: 2-32   Dimensions Pole 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A 17.70 25.90 35.00 43.25 51.50 59.75 68.00 76.25 84.50 92.75 101.00 109.25 117.50 125.75 134.00 B 8.25 16.50 24.75 33.00 41.25 49.50 57.75 66.00 74.25 82.50 90.75 99.00 107.25 115.50 123.75 Pole 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31   A 142.25 150.50 158.75 167.00 175.25 183.50 191.75 200.00 208.25 216.50 224.75 233.00 241.25 249.50 257.75 266.00 B 132.00 140.25 148.50 156.75 165.00 173.25 181.50 189.75 198.00 206.25 214.50 222.75 231.00 239.25 247.50 255.75 ST-331 Ordering Information ST-331 P 02-32 Positions H - End Mounting Ears

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