Page last updated Jun 16, 2023 @ 02:29pm
ATS3W50
Iota ITS50R Iota ITS50R Esco ES350 Wiring Esco ES350 Esco LPT50BRD Esco LPT50BRD Powermax
PMTS-50LKPowermax
PMTS-50LKclick thumbnail image above to enlarge Automatic Transfer Switch
for Mobile Applications
120/240VAC, 50 ampThese automatic transfer switches are designed for use in RVs with an AC "shore power" grid service. When plugged into the shore power they will automatically provide AC power to all AC appliances in the RV. To operate your appliances from an onboard generator or alternative Power source simply start them and these switches will automatically transfer the electrical power from the generator to AC appliances. They also feature a time delay of 20 to 30 seconds to allow the generator voltage to stabilize. To comply with the requirements for mobile applications the neutral is also switched. DC contactors are used to reduce chance of chatter and arcing.
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)
Feature | ITS50R LPT50BRD ES350 |
Higher Cost Automatic Transfer Switches | |
Generator Capacity | 50 amp (12 kW max) | 200 amp (48 kW) or larger |
|
Voltage | 120/240Vac 60Hz | 120/240Vac 60Hz | |
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 | |
Dimensions (L x W x D) |
Iota ITS50R |
7.5" x 8.5" x 4" 8.5" x 8.5" x 4.5" 12" x 10" x 6 8" x 8" x 8" |
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Iota ITS50R | Esco LPT50BRD | |
discontinued | Item Number: LPT50BRD Price: $271 Price last updated 06/16/2023 Shipping Weight: 9 lbs. This item normally ships in approximately 1 week or less. |
|
Powermax PMTS-50LK | Esco ES350 (3 source switch) | |
Item Number: PMTS-50LK Price: $161 Price last updated 06/16/2023 Shipping Weight: 9 lbs. This item normally ships in approximately 1 week or less. |
Item Number: ES350 Price: $1,031 Price last updated 04/11/2022 Shipping Weight: 9 lbs. This item normally ships in approximately 3 days or less. |
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