
Operating Instructions – Explosion-Proof AC Motors DR63/eDR63, DVE250/280
27
5
Notes regarding the connection of the motor
Electrical Installation
5.11 Notes regarding the connection of the motor
Observe the following points when you connect the motor:
• Check cable cross section
• Arrange terminal links correctly
• Screw on the connections and the PE conductor correctly
• Make sure that the connection cables are not cramped in to avoid damage to the in-
sulation.
• Observe clearances
• In the terminal box: Check winding connections and tighten them if necessary
• Perform the connection in accordance with the enclosed wiring diagram
• Avoid protruding wire ends
• Observe the specified direction of rotation
5.12 Connecting category 2G and 2GD motors
You can obtain the following wiring diagrams from SEW-EURODRIVE by specifying the
order number of the motor (see chapter "Nameplate" in the corresponding detailed op-
erating instructions):
INFORMATION
It is essential to comply with the valid wiring diagram. Do not connect or start up the
motor if this wiring diagram is missing. The relevant wiring diagrams are available from
SEW-EURODRIVE free of charge.
INFORMATION
The terminal box must be free from foreign objects, dirt and humidity. Unused cable
entry openings and the terminal box itself must be closed so they are dust and water-
proof.
Series
Number of poles
Associated wiring diagram
(designation/number)
X = Placeholder for the version
eDR63
4
DT14 / 08 857 X 03