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IOM BX-BE-BN-MX-ME-M_eng - Translation of original instructions in Italian - Rev 02_0 - 30/09/16
4 WIRING
4.1 Norms applicable to all motors
Use cables with suitable section for the rated current and for installation conditions, avoiding exces-
sive heating and/or voltage drops. Connection at the terminal board must be performed according to
the diagrams shown in chart below or according to the instructions supplied in the terminal box, using
the appropriate plates, nuts and washers. Earth according to current norms before connecting to the
mains.
In addition to the main terminals, the conduit box may contain thermal protection, anti-condensation
heaters, and brake connections.
Wire any device according to the diagrams contained in the conduit box.
During rest time voltage may still apply to terminals of the heaters and/or the brake.
When installing, repairing or maintaining the motor double check that all connections to the
mains have been cut.
Furthermore, always prevent uncontrolled restarting of the motor as this may be extremely
hazardous for the operator.
At the end of the wiring operations, place the gasket on its site and close the cover. Carefully tighten
the cable gland and close all the openings that are not used.
Single-speed motors Two-speed motors
Delta connection
Single winding (Dahlander)
Low
speed
Low
speed
High
speed
High
speed
Two separate winding
Star connection
4.2 Anti-condensate heaters
Power to the anti-condensate heaters must be supplied separately and it must always be dis-
connected while the motor is operating.
U1
V a.c.±10% Hz P [W] I [A]
BN 71 M1
1~230
50/60
22 0.12
BN 80 M2
22 0.12
BN 90 —
40 0.30
BN 100 M3
50 0.25
BN 112 —
3 ~ 230 / 400Y
50 0.26/0.15
BN 132 ... BN 160MR M4
110 0.38 / 0.22
BN 160M ... BN 180M M5
50
180 1.25 / 0.72
BN 180L ... BN200L —
250 1.51 / 0.87
V a.c. ± 10% Hz P [W] I [A]
BX 80 - BE 80 MX2 - ME2
1 ~ 230
50 / 60
22 0.12
BX 90 - BE 90 —
40 0.30
BX 100 - BE 100 MX3 - ME3
50 0.25
BX 112 - BE 112 —
3 ~ 230 / 400Y
50 0.26 / 0.15
BX 132 - BE 132 MX4 - ME4
110 0.38 / 0.22
BX 160 - BE 160 MX5 - ME5
50
180 1.25/0.72
BX 180 - BE 180 —
250 1.51/0.87
Fan wiring terminals are housed in a separate terminal box
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