Front And Left Side Views Of The Triac; Schematic Drawing For The Triac - Emerson Liebert iCOM Training And Service Manual

The triacs that Liebert uses are standard in the industry and are rated at a 2-amp
capacity. You can check these devices for proper operation while they are
connected in the circuit. If the load is removed from the device, you can get a
false reading from the meter. This is because the voltage potential is present and
is detected by the meter. When the load is applied to the device, the potential is
not detected by the meter. To test a triac for proper operation, energize the circuit
and connect the load.
O
Front View
As your view the triac from the front, the terminals are numbered as follows:
Terminal
Left
Middle
Right
Below is a simple schematic drawing for the triac using Liebert symbols.
24 VAC
Transformer
Triac
Power
1
iCOM
Heat Sink
Body
Terminals

Front and Left Side Views of the Triac

Connection
#2 Connects to the Load
#1 Connects to the Transformer power
G(ate) Connects to the Opto-Isolator
2
G
6
Opto
4

Schematic Drawing for the Triac

149
Control Training and Service Manual
Left Side View
Load
Device
2
1