1700-1800°
Chamber
C
IRCUIT
D
IAGRAM
7.1
Single Phase Example - Manual Door & Electric Door Versions
GR/Y Green/Yellow
R
Red
TC
temperature
programmer
BU
Blue
OTC
overtemperature
controller
P
Pink
G
Grey
notes: 1. Autowound element transformer shown; an isolating transformer may be fitted.
2. Door actuator circuits may differ from the example shown.
7.2
Three-Phase Models
Each set (pair) of elements has its own transformer, controlled by a thyristor complete with
thyristor fuse. For 3-phase with neutral, supply and control fuses are not fitted on the neutral sides
of the circuits. For 3-phase delta, fuses are fitted on both sides of the circuit.
The control circuit is taken off L1 and N (L1 and L2 for delta supplies).
MF22
13
Содержание HTF 18/15
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