Northern Connectors Harting HAN Industrial Rectangular Connectors - Manual (Page 21)

Han
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Screw terminations technology
Recommended screw drivers and tightening torques
Screw size Connector type
Ø Tightening
torque (Nm)
Ø Tightening
torque (lbft)
Recommended
screw driver
M3 Screw terminals: Han ® 3A /4A /Q5/0 (PE) / Staf ® 0.25 0.20 slotted 0.4 x 2.5
M3
Screw terminals: Han D ® AV, Han E ® AV,
Han ® K6/6, K6/12 (signal)
0.5 0.4 slotted 0.5 x 3.0
M3 Screw terminals: Han ® 10A - 32A, Han ® E, Hv E ® , Han ® HsB 0.5 0.4
slotted 0.6 x 3.5
or PH 1
M3 Han ® fixing screws
0.5 0.4
slotted 0.6 x 3.5
or PH 1
or PH 2
M3 Han ® guiding pins and bushes 0.5 0.4 slotted 1 x 6.0
M4
Ground terminals: Han A ® , Han E ® , Han D ® , Han DD ® ,
Han ® K 8/24, K6/6, K8/0
1.20 0.90
slotted 0.8 x 4.5
or PH 2
M5 Ground terminals: Han ® HsB, Han ® K12/2, K4/X, K6/12, K6/36 2 1.40
slotted 0.8 x 4.5
or PH 2
M6
Screw terminals: Han ® K power contacts,
Han-Eco ® PE module
for Han ® K see chapter 05,
Han-Eco ® PE module (1,2-3 Nm)
slotted 0,8 x 4,5
Preferred size in bold type
Increasing the tightening torque does not improve considerably the contact resistances.The torque moments were determined when
optimum mechanical, thermal and electrical circumstances were given. If the recommended figures are considerably exceeded the wire
or the termination can be damaged.