Three Phase Connections
Three phase connections are made at L1, L2, L3 and N connections shown in Figure
For power to be applied to these terminals, the Output Voltage Selector Switch must be in the 
120/208V, 120/240V or 277/480V positions.
Figure 3-5 Three Phase Connections
TS250/TS400 Connections
Customer Connections
L1, L2, L3 and N
Earth Ground Connection
(to Driven Earth Ground Rod)
Transfer Switch Considerations
The following are general considerations for the safe use of a transfer switch:
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.
Remote Start Contacts
This two−wire connection will start and stop the generator, when properly connected to a remote start contact, shown in Figure
Shore Power Use extension cord with appropriately sized conductors to connect the optional “Shore Power” receptacle to 120VAC (240VAC for TS400) single phase utility power. This powers battery chargers, block heaters etc. when the generator is not in operation. A single phase 20 amp breaker is provided for circuit protection.
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 heat during operation eliminate the need for these devices.
Battery Charger Considerations
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.
General Wiring Considerations
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.
MN2417 |