2020 BURNDY Master Catalog

Reference

Hardware Data Recommended Termination Hardware / Recommended Tightening Torque per UL486A/B

HARDWARE DATA (continued)

Recommended Termination Hardware

Recommended Tightening Torque per UL486A & UL486B Table 21 - Tightening torque for screws

Tightening Torque, N●m (lbf-in)

Slotted Head No. 10 and Larger*

Hexagonal Head - External Drive Socket Wrench

Test Conductor Size Installed in Connector

Slot Width - 1.2mm (.047 in) or Less and Slot Length - 6.4mm (1/4 in.) or less

Slot Width - Over 1.2mm (.047 in) or Slot Length - Over 6.4mm (1/4 in.)

Split-Bolt Connectors

Other Connectors

AWG or kcmil 30 - 10

mm

A

B

A

B

A

B

A

B

2

.05 - 5.3 1.7 (15)

2.3 (20) 2.8 (25) 4.0 (35) 4.0 (35) 4.5 (40)

2.8 (25) 3.4 (30) 4.0 (35) 4.5 (40) 4.5 (40) 4.5 (40) 4.5 (40) 4.5 (40) 4.5 (40) 4.5 (40) 4.5 (40) 4.5 (40) 4.5 (40)

4.0 (35) 4.5 (40) 5.1 (45) 5.6 (50) 5.6 (50) 5.6 (50) 5.6 (50) 5.6 (50) 5.6 (50) 5.6 (50) 5.6 (50) 5.6 (50) 5.6 (50)

7.3 (65) 7.3 (65)

9.0 (80) 9.0 (80)

6.8 (60) 6.8 (60) 10.2 (90) 14.1 (125) 14.1 (125) 14.1 (125) 16.9 (150) 22.6 (200) 28.2 (250) 28.2 (250) 33.9 (300) 33.9 (300) 45.2 (400) 56.5 (500)

8.5 (75) 8.5 (75)

8

8.4

2.3 (20)

6 - 4

13.2 - 21.2 2.8 (25)

15.3 (135) 25.4 (225) 25.4 (225) 25.4 (225) 35.6 (315) 45.2 (400) 62.1 (550) 76.3 (675) 76.3 (675) 90.4 (800) 111.7 (900) 111.7 (900)

18.6 (165) 31.1 (275) 31.1 (275) 31.1 (275) 43.5 (385) 56.5 (500) 73.4 (650) 93.2 (825) 93.2 (825) 113.0 (1000) 124.3 (1100) 124.3 (1100)

12.4 (110) 16.9 (150) 16.9 (150) 16.9 (150) 20.3 (180) 28.2 (250) 36.7 (325) 36.7 (325) 42.4 (375) 42.4 (375) 56.5 (500)

3 2 1

26.7 33.6 42.4

2.8 (25) 3.4 (30)

- - - - - - - - -

- - - - - - - - -

1/0 - 2/0 53.5 - 67.4 3/0 - 4/0 85.0 - 107.2 250 - 350 127 - 177

400 500

203 253

600 - 750 304 - 380 800 - 1000 406 - 508 1250 - 2000 635 - 1000

- 67.8 (600) * For values of slot width or length not corresponding to those specified, select the largest torque value associated with the conductor size. Slot width is the nominal design value. Slot length shall be measured at the bottom of the slot. -

1-800-465-7051 (Canada) 1-603-647-5299 (International)

O-7