2.14. Example Wiring Diagram
This example shows a heat/cool temperature controller
where the heater control uses a SSR and the cooling
control uses a relay.
L
Heater
Controller fuse
fuse
7
Solid State
8
Relay
(e.g. TE10)
9
ELK
10
11
Heater
12
N
Safety requirements for permanently connected
equipment state:
•
A switch or circuit breaker shall be included in the
building installation
•
It shall be in close proximity to the equipment and
within easy reach of the operator
Part number HA028438. Issue 3.0.
Relay
output
fuse
13
1
J
Snubber*
14
2
15
3
Cooling
16
4
relay
+
17
5
18
6
-
T/C
J
Oct-05
•
It shall be marked as the disconnecting device for
the equipment.
Note: a single switch or circuit breaker can drive more
than one instrument.
23