Elkhart ES50M-65N & LPT100 Transfer Switch Parts Reference

If an RV needs an Elkhart transfer switch, confirm whether the installed label reads ES50M-65N or LPT100. One is a 50A contactor arrangement with a higher-rated neutral; the other is a 100A heavy-duty transfer unit. These photographs and specifications help distinguish them before ordering.

How the ES50M-65N and LPT100 transfer power

Automatic transfer switches select between two appropriate power sources and supply one protected RV AC distribution system. Generator operation and the position of the internal relays depend on the exact unit and its factory controls.

ES50M-65N · 50A

Shore or generator inputTwo hot legs / neutral from one approved source
3-pole AC contactorAutomatic selection; only one source supplies the load
50A RV distributionConnected to RV AC load panel as approved

LPT100 · 100A

Shore or generator inputTwo hot legs / neutral from one approved source
Heavy-duty relay transferAutomatic selection; only one source supplies the load
100A RV AC distributionConnected to RV AC load panel as approved
Original functional system illustration. This is not a physical pinout or terminal wiring drawing; follow the exact manufacturer's lid and service schematic.

Compare original ESCO switch ratings

Exact model Current rating Voltage Main electrical distinction Time / enclosure
ES50M-65N 50A per pole, 65A neutral 240V AC rating 110V AC coil; 3-pole normally-open contactor About 30 seconds
LPT100 100A 120/240V Transfers hot poles and neutral; neutral interlock Manufacturer timed transfer

The ES50M-65N is specified for a 240V AC class system, rated 50A per hot pole and 65A neutral. LPT100 is a 100A, 120/240V system with a heavy-duty relay design and a neutral-transfer interlock. A higher current rating does not establish a plug-and-play substitute for a lower-rated switch.

Replacement selection: Verify source voltage, number of hot legs, contact rating, neutral switching, original model and physical mounting. A similarly rated switch from another family can have different terminal wiring and a different generator-priority circuit.

Exact model photos and parts listings

Each product card below links to the identified model on this store. Check the label on the installed switch and the current product listing before ordering.

Original Elkhart/ESCO installation documentation

The factory resources provide actual component and terminal placement for the relevant revision. Unlike the functional diagram above, those documents distinguish relay pins, source wiring and connections for servicing.

ESCO ES50M-65N service diagram and parts · ES50M-65N manufacturer data · LPT100 manufacturer data

Electrical safety: Shore, generator and inverter circuits must be fully isolated and tested before the enclosure is opened. Have a qualified RV electrician carry out mains-voltage installation and diagnostics to the exact factory schematic.

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