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Iota ITS50R Iota ITS50R Iota ITS50R Iota ITS50R Iota ITS50R Esco ES350 Wiring Esco ES350 Esco LPT50BRD Esco LPT50BRD click thumbnail image above to enlarge
Automatic Transfer Switch
120/240VAC, 50 amp
Safely connect an inverter and an AC generator to the same house wiring. Switch can be used with inverters that do not have built-in transfer switch capability. If the generator is not running, the inverter is connected to the house wiring. When the generator is started, the house wiring is automatically disconnected from the inverter and connected to the generator. A time delay feature allows the generator to warm-up before the transfer takes place. DC coils on relays eliminate chatter on low voltage.
Also can be used to transfer between an RV generator and "shore" power.
If system is 120VAC only (no 240VAC) you must connect to "HOT 1" on this switch. Connecting to "HOT 2" is optional.
Comparison with Other Transfer Switches
(some features not included can be added by user with additional auxiliary relays)
|Higher Cost Automatic Transfer Switches|
|Generator Capacity||50 amp (12 kW max)||200 amp (48 kW)
|Generator output sensed before transfer||Yes||Yes|
|Time delay before loading generator||Yes||Yes|
|Under voltage sensing starts generator||Not Included||Yes|
|Automatic retransfer when utility restored||No||Yes|
|Automatic generator exerciser clock||No||Usually included|
|Engine battery trickle charger||No||Usually included|
|Short circuit rating||Low||Medium-High|
|Factory Warranty||2 years
|Dimensions|| 7.5" x 8.5" x 4"
8.5" x 8.5" x 4.5"
12" x 10" x 6
|Iota ITS50R||Esco LPT50BRD|
|Esco ES350 (3 source switch)|