Product Manual

Table Of Contents

3. Installation 7-2019

RA Series transfer switches are only designed to be installed with the generator set models

identified in Section 2.1 on page 5. Installing this switch with any other generator set model will

void the warranty and may result in the transfer switch not working properly.

3.2.2 Equipment Inspection and Storage

Once you have received the transfer switch, inspect it for any damage. Check for damage to the

enclosure, the transfer switch, the control panel (if applicable), and the wiring harness.

Prior to installation, make sure the transfer switch is stored in a clean dry place, protected from dirt and

water. Provide ample air circulation and heat, if necessary, to prevent condensation from gathering on the

equipment. Be sure to adhere to the transfer switch storage and operating requirements listed below.

TABLE 3. TRANSFER SWITCH STORAGE AND OPERATING REQUIREMENTS

Storage Temperature

Operating Temperature

(Ambient)

Humidity

-22 °F to +158 °F

(-30 °C to +70 °C)

-4 to +140 °F

(-20 to +60 °C)

5 to 95%

(Non-Condensing)

3.2.3 Location

The location of the transfer switch in the existing electrical circuit varies with the application and the type

of entrance switch. The location and wiring must comply with all local codes.

There must be a service disconnect in the commercial power line ahead of the transfer switch.

A typical transfer switch installation plus cabinet dimensions and weights are shown in Section 3.2.4.

Choose a vibration-free mounting surface that supports the weight of the switch. Avoid locations that are

near flammable liquids or gases, or are hot, moist, or dusty.

WARNING

An electrical arc occurs during transfer that can ignite a flammable atmosphere, resulting in

severe personal injury or death. The switch must not be located near batteries, fuel tanks,

solvents, or other sources of flammable liquids or gases, or in areas sharing ventilation with

such sources.

3.2.4 Installing an Automatic Transfer Switch

NOTICE

Maximum continuous loads not to exceed 80% of the overcurrent protective device (circuit

breaker and fuses) ratings employed in other than motor circuits, except for those circuits

employing circuit breakers marked as suitable for continuous operation at 100% of their ratings.