SMA SC 250U Installation - Manual (Page 15)

SMA America, LLC Mounting the components
Installation Guide SC250U_GFDI-IUS101711 15
5 Mounting the components
5.1 Mount flexible busbar
1. Connect busbar WL+ and the contactor K2:2 with
the provided flexible busbar 10 x 32 x 1:
Tighten the screws with a torque of 55 ft-lb
(74 Nm) at busbar WL+.
Tighten the screws with a torque of 62.5 ft-lb.
(85 Nm) at the contractor.
2. Connect busbar WL‒ and contactor K2:4 with the
flexible busbar 10 x 32 x 1.
3. Tighten the screws with a torque of 62.5 ft-lb.
(85 Nm) at the contractor and a torque of 55 ft-lb.
(74 Nm) at busbar WL‒.