3.1.1
Terminals, Screws and Torques
CAUTION!
Be careful. Do not overtighten the mountings nuts of the relay. Check the torque by
means of a torque wrench with respect to the max. torque values in the table. Over-
tightening the mounting nuts could cause personal injury or damage the relay.
Slot Tightening
Torques of
the Screws
Screw Type Description
PE 1.6 Nm
(14.2 lb⋅in)
nut, 7 mm Screw-type connector for Protective Earth. See ╚═▷ “3.3.1 Grounding”.
X0 0.5 Nm
(4.4 lb⋅in)
M3 slotted Measuring input for ground (earth) current (for some order options) — See
╚═▷ “3.4 Phase and Ground Current Measuring Inputs”.
X1, X2,
X3
Inputs for
WIC1 CTs:
0.5 Nm
(4.4 lb⋅in)
Inputs for
Broad-
Range CTs:
0.22 Nm
(1.9 lb⋅in)
Inputs for
WIC1 CTs:
M3 slotted
Inputs for
Broad-
Range CTs:
M2 slotted
Measuring inputs for phase currents — See ╚═▷ “3.4 Phase and Ground
Current Measuring Inputs”.
X4 0.5 Nm
(4.4 lb⋅in)
M3 slotted Pin assignments depending on the order option, for example:
• Impulse signal outputs for a trip coil and for a ag indicator — See ╚═▷•
“3.7 Outputs (Trip Coil, Flag Indicator, Relay Output)”.
• Only some variants of WIC1‑1… / WIC1‑2… / WIC1‑3…: Input e. g. for•
an external trip signal — See ╚═▷ “3.5 Digital Input (only WIC1‑1… /
WIC1‑2… / WIC1‑3…)”
• Only WIC1‑4…: Digital Inputs incl. additional auxiliary power supply —•
See ╚═▷ “3.6 Additional Power Supply and Digital Inputs (WIC1‑4…
only)”
X5 — — RJ45 connection to the DiggiMEC.
Ethernet CAT3 cable or better, but beware, this is not an Ethernet
connection! Beware, crossover cables must not be used!
See also ╚═▷ “2.7 Settings – Operation”.
X6 0.22 Nm
(1.9 lb⋅in),
except:
two screws
for xing the
connector:
0.3 Nm
(2.6 lb⋅in)
M3 slotted,
except:
two screws
for xing the
connector:
M2 slotted
Only some variants of WIC1‑4:
RS485 connector for SCADA communication. Note that SCADA will
become available with a later release.
X7 — — Only some variants of WIC1‑4:
RJ45 or ber optics connector for Ethernet-based SCADA communication.
Note that SCADA will become available with a later release.
— 0.6 Nm
(5.3 lb⋅in)
M3 crosshead Plastic cover for protecting and covering the lateral terminals, fastened with
one non-losable screw.
— 0.6 Nm
(5.3 lb⋅in)
M3 crosshead Only for variants of WIC1‑2, WIC1‑3:
56 WIC1 WIC1-1.0-EN-MAN
3 Hardware
3.1.1 Terminals, Screws and Torques