9.0 Wiring Diagrams
9.0
Wiring Diagrams
In all models the safety switch in the diagram is a positive-break door switch.
EMC Filters (if fitted): dependent on the model there may be one filter, or more than
one fitted in parallel. The circuit diagram examples do not show multiple filter
arrangements.
ISOLATOR: the industrial models have an internal isolator which is not shown in these
diagrams.
9.1
WA-33-30
Connections below show 3-phase +N with indirect safety switches.
Key
F1, F2, F3
Fuses
FIL
Filter (if fitted)
C
Controller
TC
Control Thermocouple
R
Relay
R1/1, R1/2, R1/3 Relay contactor
SW
Instrument Switch(es)
SSW
Safety Switch
EL
Element
SSR
Solid State Relay
N
Neutral
L
Live
PE
Earth
Cables
BU
Blue
R
Red
BL
Black
GR/Y Green + Yellow
G
Grey
P
Pink
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