Suburban | E-Series 7-Gallon Electric Water Heater | SW7EC | 5402A | Electric Only | 120V AC
E-Series 120V Tank Water Heater Door Version SW7EC (5402A)
The Suburban 5402A SW7EC is a compact, fully electric RV water heater designed for recreational vehicles requiring a flameless heating solution. This 7-gallon capacity unit operates on 120VAC/15 amp service, providing hot water at temperatures up to 135°F without the need for propane or venting.
Key Features:
- 7-gallon tank capacity with compact footprint ideal for space-constrained RV installations
- Electric-only operation (120V/15A) eliminates the need for gas lines or LP tanks
- Flameless heating method requires no venting or surround clearances
- Porcelain-lined steel tank construction with anode rod protection
- Can be internally installed without sidewall cutout requirement
- Compact - less than 2 cubic feet
- Emission Free - fully electric heating, no exhaust = Less Maintenance
- Porcelain-Lined Glass Tank - Long lasting and easy to maintain
- Great for Campground Use - save on propane using shore power
- Fully Insulated - Saves energy, stays hot
The SW7EC E-series water heater is perfect for RVers who prefer all-electric operation or who camp primarily at locations with electrical hookups. Its compact design and lack of venting requirements make installation easier and provide greater flexibility in placement within the RV.
Can be used either as a stand-alone or supplemental water heater!
If used as a supplemental tanked water heater to support a Suburban ST or Advantage tankless water heater system, propane is conserved when electrical hook up is available.
If used as a stand-alone solution, when plugged into 120VAC/15 amp service, E-series water heaters provide 7 gallons of water at 135°F with a compact footprint. The fully electric, flameless heating method does not require venting or surround clearances.
The ECN model can be internally installed without the need for a sidewall cutout.
Alternately, the EC model can be installed with a sidewall cutout and exterior door for easy access.
When power is available, 135°F water is provided from the tank system.
Specifications:
- Power Source: 120V AC
- Output Water Temperature (Factory Preset): 135F
- Internal Water Storage Capacity: 7 Gallons
- Warranty: Suburban 2 Year Manufacturer Warranty
- SW=Suburban Water Heater, #=Gallon Tank, E=110V AC Electric C=Direct spark/control variant
Need help confirming fitment?
Our team at United RV Parts is here to help you find the right replacement or parts for your RV Water Heater.
Text or call 817-984-1852 with the make and model number of your existing water heater and we’ll make sure you get exactly what you need the 1st time.
Images are for illustration purposes only and are not an accurate way to determine the correct replacement.
Actual product may vary in appearance from the illustration photos.


