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Chapter 2 Installation And Operation
ASCO Series 230 C2ADTL Transfer Switch User Manual
1.
The transfer switch inlet and outlet shall be properly connected. If a power is emergency power such as a generator or a
battery, emergency power supply should be connected to the Source II.
2.
Recommended torque to be used for transfer switch mounting screws during installation: M5: 3 N·m.
Dimensions of A, B, and C in Figure 2-1 are shown in Table 2-1.
Table 2-1 A, B, and C Dimensions
2 Pole
3 Pole
4 Pole
A (mm)
251
285
319
B (mm)
236
270
304
C (mm)
68
102
136
Weight (KG)
4.6
5.2
5.8
2.1.2 Accessory Installation
1. Bridging Busbar
It is used to connect the switch I and II load side terminals together.
The installation procedures are as follows:
1) Identify the transfer switch load side terminals.
2) As shown in Figure 2-2, insert the bridging busbar between the Source I load side terminal and the Source II load
side terminal with the long center plate of bridging busbar against the arc chamber wall surface.
3) Fix the bridging busbar with M10 × 30 terminal screws included with the package.
Bridging busbar
Bridging busbar
Load Connection
busbar
Source I
Connection busbar
Source II
Connection busbar
Load Side
Line Side
Bolt assembly
Nut
Washer
Bridging busbar
Source II Load Terminal
Source II Load Terminal
Figure 2-2 Installation of Bridging Busbar
WARNING
！
1. Make sure to install the bridging busbar in such a way that its long center plate must make solid contact with the arc chamber
surface.
2. The bridging busbar can only be used for the LOAD SIDE of the switch.
3. Recommended torque to be used for the bridging busbar connecting screws: M8: 11 N·m.
2. Pole Partition
The pole partition is used to isolate and insulate the poles and ensure electric safety.
The installation procedures are as follows:
1) The pole partition as shown in Figure 2-3.
