Carbolite Peak Series - Manual (Page 12)

Peak Ovens
12
MF15 – 3.13
7.4 Three Phase with Neutral
7.5 Three Phase without Neutral (delta e.g. 208-240V)
7.6 Three phase without Neutral (star – e.g. 380-415V)
The circuit is similar to 7.4, but the “neutral” ends of the elements are not connected to a neutral
terminal block.
The control circuit contains an isolating transformer to reduce
the control voltage to 240V or similar.
7.7 Higher Voltages (e.g.254V)
The control circuit contains an isolating transformer to reduce
the control voltage to 240V or similar.
Instrument Switch
e
l
e
m
e
n
t
(s)
F1
F2
N
L1
PE
Filter
contactor
if fitted
SSR
SSR
SSR
e
l
e
m
e
n
t
(s)
e
l
e
m
e
n
t
(s)
instrument and fan
circuit as above
L2
L3
Note on 3-phase. Depending on filter(s) fitted, there may 3 separate
neutral wires from the elements to the neutral supply.
Instrument Switch
e
l
e
m
e
n
t
(s)
F1
F2
L1
PE
Filter
contactor
if fitted
SSR
SSR
SSR
e
l
e
m
e
n
t
(s)
e
l
e
m
e
n
t
(s)
instrument and fan
circuit as above
L2
L3
F2
F2
transformer
Instrument Switch