ECD 100-181 - Terminal Screw Torque Settings

Terminal Screw Torque Settings.
TIGHTENING TORQUES FOR 3 POLE CONTACTORS
TYPE CONTACTOR TERMINAL
SCREW SIZE
TORQUE
(Nm)
TORQUE
(Ft-lbs)
GMC-9 M4 2.3 1.7
GMC-12 M4 2.3 1.7
GMC-18 M4 4.0 3.0
GMC-22 M4 4.0 3.0
GMC-32 M5 4.0 3.0
GMC-40 M5 4.0 3.0
GMC-50 M6 5.0 3.7
GMC-65 M8 5.0 3.7
GMC-75 M8 5.0 3.7
GMC-85 M8 5.0 3.7
GMC-100 M8 9.0 6.6
TIGHTENING TORQUES FOR THERMAL OVERLOADS
TYPE TERMINAL SCREW SIZE TORQUE
(Nm)
TORQUE
(Ft-lbs)
GTK-22 M4 2.3 1.7
GTK-40 M4 4.0 3.0
GTK-85 (28-40A) M6-M8 5.1 3.8
TIGHTENING TORQUES FOR MODULAR SCREW TERMINALS
TYPE TERMINAL SCREW SIZE TORQUE
(Nm)
TORQUE
(Ft-lbs)
2.5mm M2.5 0.4 - 0.6 0.30 - 0.44
4.0mm M3 0.5 - 0.7 0.37 - 0.52
10.0mm M5 2.0 - 2.5 1.48 - 1.84
16.0mm M6 2.5 - 3.0 1.84 - 2.21
35.0mm M8 6.0 - 10.0 4.00 - 7.38
75.0mm M8 6.0 - 10.0 4.00 - 7.38