Mounting and installation
Version 1
RES-5006
Page 9
6.2
Installation notes
Sample depiction
Line
Impulse
transformer
Current transformer
PEX-W4 / W5
U (prim.)
1
Heatsealing band R= f (T)
U (sec.)
2
A
F
Avoid long
cables
Heatseal element
with coppered ends
Use heatseal bands with
suitable temperature coefficient
20 mm clearance if several
controllers installed on
one top hat rail
No additional
resistance
in secondary
circuit
Dimension
transformer correctly
- Secondary voltage
- Power
- Duty cycle
Sufficient wire
cross-section
No
push-on
connectors
Twisted
Current measuring
wires IR
R
Connect U measuring
wires directly to
heatsealing band ends
Line filter
LF-xxxxx
Note
number
of turns