Square QED-2 - Page 54

Power-Style™ QED-2 Switchboards Section 9—Torque Values for Electrical Connections
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Hardware
Description
Torque Value
1/2 in. 720–840 lb-in (81–95 N•m)
Hardware
Description
Torque Value
1/4 in. 50–75 lb-in (6–8 N•m)
3/8 in. 175–225 lb-in (20–25 N•m)
1/2 in. 250–350 lb-in (28–40 N•m)
Hardware
Description
Torque Value
Conical Washer OD
Square Head (Tee) Bolt
Conical Washer
3/8 in.
0.87 in. (22 mm) 250–280 lb-in (28–32 N•m)
1.00 in. (25 mm) 130–150 lb-in (15–17 N•m)
1/2 in.
1.25 in. (32 mm)
2.25 in. (57 mm)
450–550 lb-in (51–62 N•m)
Hardware
Description
Torque Value
Conical Washer OD
Hex Head Bolt
(2) Conical Washers
5/16 in. 0.90 in. (23 mm) 145–160 lb-in (16–18 N•m)
3/8 in.
0.87 in. (22 mm) 250–280 lb-in (28–32 N•m)
1.00 in. (25 mm) 130–150 lb-in (15–17 N•m)
1/2 in.
1.25 in. (32 mm)
2.25 in. (57 mm)
3.00 in. (76 mm)
720–840 lb-in (81–95 N•m)
Carriage bolt
Hex nut
Conical washer
Carriage bolt
Conical washer assembly
Keps nut
Hex head bolt
Conical washer assembly
Keps nut
Square head (Tee) bolt
Conical washer assembly
Keps nut
Square head (Tee) bolt
Conical washer
Hex head bolt
(2) Conical washers
Hardware
Description
Torque Value
1/4 in. 50–75 lb-in (6–8 N•m)
5/16 in. 80–125 lb-in (9–14 N•m)
3/8 in. 175–225 lb-in (20–25 N•m)
1/2 in. 250–350 lb-in (28–40 N•m)