Baldor TS25 Installation & Operating Manual page 18

Transfer Switch Considerations
The following are general considerations for the safe use of a transfer switch:
Remote Start Contacts
This two−wire connection will start and stop the generator, when properly connected to a remote
start contact, shown in Figure 3-4. These contacts RR1 and RR2 are connected to the "Engine
Start Contacts" of the automatic transfer switch. A two pole normally open, closed to operate
switch may also be used to start the generator.
AC Input These connections are for units with float type battery charger or engine block heater. A
constant supply of 120 volts AC (or as specified) is needed at these terminals to power these
devices when generator is not operating.
Note: Power is not required when the unit is in operation. Internal battery charging and radiant
Battery Charger Considerations
General Wiring Considerations
Frame Ground Connection
WARNING: Be sure the system is properly grounded before applying power. Do not apply AC power
before you ensure that grounds are connected. Electrical shock can cause serious or fatal
injury. NEC requires that the frame and exposed conductive surfaces (metal parts) be
connected to an approved earth ground. Local codes may also require proper grounding of
generator systems.
It is important for safety reasons that the Generator set, transfer switch and battery charger share
a common Ground and neutral.
The NEC requires that the frame and exposed metal surfaces be at local ground reference
potential to avoid electrical shock hazard. A local ground reference may require a driven earth
ground conductor at the generator installation site. Make the ground connection as shown in
Figure 3-5. Use the appropriate size wire as required by NEC and local codes.
3-6 Receiving & Installation
1. The transfer switch should be located inside the building near the main breaker box or
the disconnect box.
2. The transfer switch must be kept away from any location that might allow water to get
on it.
3. If the transfer switch is mounted outside, it must be protected from the environment and
it's elements.
4. Do not mount the transfer switch on the generator set.
5. Do not mount the transfer switch where flammable liquids or vapors are present.
heat during operation eliminate the need for these devices.
1. Mount the battery charger inside the generator enclosure as close to the battery as is
reasonably possible.
2. Do not mount the battery charger where flammable liquids or vapors are present.
When the battery is charging it produces explosive gasses.
1. When routing the interface wiring, do not route it up against anything that could cut or
chafe the wiring. do not route the wire up against any hot or potentially hot object.
2. Make sure that all the electrical components (generator set, transfer switch, battery
charger, etc.) share a common ground.
3. Check with your local building inspector to determine what you must do to comply with
the local regulations for grounding of this type of permanent installation.
MN2416