7SR105 Rho Installation Guide
©2018 Siemens Protection Devices Chapter 5 Page 4 of 6
Table 1-1 Recommended Terminal Lugs Specifications with Control Push Buttons
Terminal Blocks Type/Cable Specifications
Manufacturer/Part
number
Current Inputs
(Terminal X5)
TE connectivity PIDG Series insulated tin plated
Crimp ring terminal, M3.5 Stud size, 2.6 mm² to
6.6 mm², 12 AWG; Torque required 1.0 Nm
TE Connectivity Mfr.
Part No. 2-327960-1 or
equivalent
Auxiliary Supply
(Terminal X3)
Insulated tin plated crimp pin connector, 2.6 mm²
to 6.6 mm², 12 AWG to 10 AWG; Torque
required 0.5 Nm to 0.6 Nm
End sleeve
3D-8011H or equivalent
Rear Communication Port
(Terminal X2)
Pin type lug/1.5 mm
control cable; Torque
required 0.34 Nm ±10%
End sleeve
3D-8009H or equivalent
Front Communication Port USB, Type B
Tyco/974329-1 or
equivalent
Binary Input
(Terminal X1)
Insulated tin plated crimp pin connector, 2.6 mm²
to 6.6 mm², 12 AWG to 10 AWG; Torque
required 0.5 Nm to 0.6 Nm
End sleeve
3D-8011H or equivalent
Temperature Inputs
(Terminal X6, X7)
Pin type lug/1.5 mm
2
control cable; Torque
required 0.34 Nm ±10%
End sleeve
3D-8009H or equivalent
Binary Output
(Terminal X4)
Insulated tin plated crimp pin connector, 2.6 mm²
to 6.6 mm², 12 AWG to 10 AWG; Torque
required 0.5 Nm to 0.6 Nm
End sleeve
3D-8011H or equivalent
Earth Connections
Tin plated crimp ring Terminal, M3 stud size, 4
mm² to 6 mm², 12 AWG to 10 AWG, Yellow;
Torque required 0.5 Nm to 0.6 Nm
RS Stock No. 613-9334
or equivalent Mfr. Part
no. RVY5-3.2