Product Manual

2. Introduction8-2018

4. Transfers the load to the generator set

5. Senses the return of utility power

6. Sends utility available signal to generator set

7. Receives retransfer command from generator set control

8. Retransfers the load to the utility

The transfer switch design is intended to signal when the utility voltage is not present and when it returns.

The utility sense relay coil will energize or stay energized at voltages other than nominal. Therefore, the

unit should not be expected to signal a failed utility to the generator set during undervoltage or overvoltage

conditions.

2.4 Model Identification

Identify the model by referring to the Model and Specification number as shown on the nameplate.

Electrical characteristics are also shown on the nameplate.

Refer to Figure 6 for the key to the model character meanings.

FIGURE 6. RA SERIES TRANSFER SWITCH MODEL CHARACTER KEY