Carbolite TZF Series - Manual (Page 17)

STF/TZF
MF08 – 3.24
17
7.9 3-phase “universal” wiring (applicable to some TZF models)
If your furnace has 6 internal supply fuses, then this diagram applies. See sections 7.6-7.8 for the
3-zone control aspects of the circuit.
Fuses F1 are always present in this wiring design.
models made to this diagram can be
converted by the customer between the
following supply voltages:
between 3-phase + neutral in the range
380/220V – 415/240V
and 3-phase delta in the range
200V – 240V
and single phase in the range
200V – 240V
See also section 8.2 if there is a voltage change.
3-phase + neutral
Circuit no. 1
N
L
N
L
Circuit no. 2
Circuit no. 3
N
L3
L2
L1
Supply
Terminals
N
L
Fuses or
EMC filters
PE
Not
used
3-phase delta
Circuit no. 1
N
L
N
L
Circuit no. 2
Circuit no. 3
N
L3
L2
L1
Supply
Terminals
N
L
Fuses or
EMC filters
PE
1-phase
Circuit no. 1
N
L
N
L
Circuit no. 2
Circuit no. 3
N
L3
L2
L1
Supply
Terminals
N
L
Fuses or
EMC filters
PE
Not
used
Instrument Switch
coil
temperature
controller
overtemp.
controller
thermocouple
safety
switch
SSR
heat
on
F3
F1
F2
F3
SSR
SSR
F3
heat
on
F3
e
l
e
m
e
n
t
(s)
heat
on
F3
F3
if fitted
Contactors
(3)
Filters (if fitted)
e
l
e
m
e
n
t
(s)
e
l
e
m
e
n
t
(s)
coil
L
N
L
N
L
N
thermocouple