2.2.2 Electrical connections
VEX type
Voltage[V]
Dimensioned power con-
sumption [A] (max. phase
current)
Max. neutral current [A]
VEX150H/150V
3 x 400 V+ N+ PE ~ 50Hz
8,7
15
VEX160H/160V
3 x 400 V+ N+ PE ~ 50Hz
15,5
23,5
VEX170
3 x 400 V+ N+ PE ~ 50Hz
17,5
NB
Maximum phase current is the dimensioned current for choice of cable. Cable should
be dimensioned according to maximum neutral current if this is greater than the
maximum phase current.
Short-circuit current
Maximum short circuit current (lcu), in accordance with EN60947.2 is 10 kA.
Accessories
Accessory types CCW and XCU do not require separate supply cables and can be
directly connected to the VEX control system box.
Terminals (U1, N)
...may only be used with the above mentioned accessories, and can have a 2.0 A
maximum load. A maximum of one CCW/XCU (cooling) can be connected. The EX-
act2 control system prevents both heating and cooling operating at the same time.
Circulation pump
The circulation pump can be connected to AHUC. The circulation pump may not
draw more than 2.0 A, and its cable must be dimensioned for a 10 A fuse.
Isolation switch, in-
side
Connect supply volt-
age here!
Remove the red cover when
connecting
3005760-2017-05-03
Installation of the VEX
11/20
Summary of Contents for VEX100CF Series
Page 19: ...3005760 2017 05 03 19 20 ...
Page 20: ......
