Electric Low Capacity

Light Duty Commercial

Electric cement lined water heater Model E
  • Light Duty
  • 6 - 119 Gallon Capacity
  • Up to 12KW - 1 Phase or 3 Phase

Ceiling Hung Horizontal

Electric horizontal ceiling hung water heater Model HE/HSE
  • Horizontal, Ceiling Hung
  • 19 or 30 Gallon Capacity
  • Up to 20 KW - 1 or 3 Phase

Heat Pump

Hybrid electric heat pump water heater Model PBX
  • Heat Pump Water Heater
  • 40 - 119 Gallon Capacity
  • 1 or 3 Phase

Point-Of-Use Water Heater

Mini compact point of use water heater
  • Point-of-Use
  • 2.5 Gallon Capacity
  • Digital Display

Point-Of-Use Storage

Point-of-use electric water heater Model CE110
  • Point-of-Use
  • 1 Gallon Capacity
  • 1000 or 450 Watts - 1 Phase

Point-Of-Use Tankless

Electric tankless point-of-use water heater Model R Tankless
  • Whole House / Point-of-Use
  • Availabe 3 thru 27 KW - 1 Phase

Circulation (Instantaneous)

Electric circulation heater Hubbell Model CR
  • Circulation (Instantaneous)
  • Heavy Duty Construction
  • 25-1600 KW - 1 or 3 Phase

Industrial Process Heater

Model V16
  • Process Systems & Industrial
  • ASME Stamped
  • Up to 88 KW - 1 or 3 Phase

Heavy Duty Commercial

Commercial heavy duty electric storage water heater Model SE
  • Heavy Duty
  • 6-119 Gallon Capacity
  • Up to 58 KW - 3 Phase

Tankless Commercial

Electric tankless water heater Model HX/TX
  • Tankless Commercial
  • Highly efficient tankless
  • Up to 162 KW - 1 or 3 Phase

Large ASME

Large capacity electric storage tank water heater Model SH
  • Large Capacity
  • 80-5000 Gallon Capacity
  • All KW ratings - 1 or 3 Phase

Commercial Condensing Gas Water Heater

Gas tankless water heater Model NX
  • High Efficiency Condensing Burner
  • 316L SS ASME Heat Exchanger
  • BTU input from 200,000 to 800,000 MBH

Commercial/ Industrial
Condensing Gas Water Heater

Gas tankless water heater Model NXT
  • High Efficiency Condensing Burner
  • 316L stainless steel and ASME stamped heat exchanger
  • BTU input from 200 to 400 MBH

DI / RO Gas

DI/RO gas fired tankless water heater Model DGX
  • DI/RO Water Heater
  • High Efficiency Condensing Burner
  • 199,950 and 250,000 BTU

Condensing Gas
Storage Water Heater

Condensing gas storage tank water heater Prime
  • High Efficiency Condensing Burner
  • Removable 316L SS Heat Exchanger
  • 55,000 BTUs

Large ASME
Steam Heater

Steam fired water heater large capacity Model ST
  • Storage Type
  • 80-5000 Gallon Capacity
  • ASME Stamped

Packaged Semi-Instantaneous

Semi-Instantaneous Steam Fired Water Heater Model STX
  • Semi-Instantaneous
  • Space saving design
  • Provides 10,500 GPH


Storage tank steam fired water heater Model PS
  • Light Duty
  • 65-119 Gallon Capacity
  • For low demand/recovery

High Capacity Instantaneous

Instantaneous steam fired water heater Model F
  • Instantaneous
  • 7 Sq. Ft. of floorspace
  • Up to 120 GPM

Semi-Instantaneous Indirect

Indirect fired semi-instantaneous water heater Hubbell Model BWX
  • Semi-Instantaneous
  • Vertical or Horizontal
  • ASME Stamped

Large ASME

Indirect fired storage tank water heater Hubbell Model BW
  • Storage Type
  • Vertical or Horizontal
  • 80-5000 Gallon Capacity

Small Capacity Indirect

Indirect fired storage tank water heater model T Transflow
  • Indirect Fired
  • 35-119 Gallon Capacity
  • Utilizes boiler water


Solar water heater Model SLN
  • Solar Heater
  • Vertical Storage Type
  • 65-119 Gallon Capacity

Indirect Plate Heat Exchanger

Plate Heat Exchanger Indirect Fired Water Heater Model BWP
  • Fully Packaged System
  • Full Range of Styles/Sizes
  • Storage Type

Indirect Plate Heat Exchanger

Plate Heat Exchanger Indirect Fired Water Heater Model BWXP
  • Compact Design
  • Instantaneous
  • Replaceable brazed plate or plate and frame


ASME and None ASME storage vessels Hubbell Model StorageTank
  • ASME & Non ASME designs
  • Hydrastone Cement
  • Vertical or Horizontal


ASME and None ASME storage vessels Hubbell Model BufferTank
  • Carbon Steel Construction
  • Long Warranty
  • ASME Section VIII, Division 1


Electric hazardous location water heater Model ER
  • Hazardous Location
  • 10-5000 Gallon Capacity
  • Up to 1600 KW - 1 or 3 Phase

Tepid Water for Emergency Fixtures

Electric safety shower water heater Model EMV
  • Emergency Tepid Water
  • Fully packaged system
  • Integrated mixing valve

Industrial Process Heater

Model V16
  • Process Systems & Industrial
  • ASME Stamped
  • Up to 88 KW - 1 or 3 Phase

RO / DI Heater Compact

DI/RO electric hot water heater Model HD
  • RO/DI Water Heater
  • Point-of-Use Heater
  • Up to 88 KW - 1 or 3 Phase

RO / DI Heater Storage

DI/RO electric hot water heater Model D
  • RO/DI Water Heater
  • 1-119 Gallon Capacity
  • Up to 88 KW - 1 or 3 Phase

Emergency Shower Tankless

Electric tankless safety shower water heater Model ETX
  • Tankless Emergency Tepid Water
  • NEMA 4 Standard
  • Up to 88 KW - 1 or 3 Phase

Fully Integrated Package

Model Packaged Skid Electric Fluid Heating System
  • Customized to your specifications
  • Full featured system ready for your application

Industrial Process Heater

Electric process industrial water heater Model V
  • Customized to your specification
  • Full featured system ready for your application

Light Duty

Electric water heater for shipboard marine use single phase power Model ME
  • Light Duty
  • 6-119 Gallon Capacity
  • Up to 6 KW - 1 Phase

Heavy Duty

Electric water heater for shipboard marine use three phase power Model MSE
  • Vertical
  • 6-119 Gallon Capacity
  • 1 or 3 Phase - Up to 58 KW

Large ASME

Electric water heater for shipboard marine use large capacity Model MSH
  • Large Capacity
  • 80-5000 Gallon Capacity
  • All KW ratings - 1 or 3 Phase


Naval shipboard marine electric water heater Hubbell Model 177
  • MIL Spec Navy Heaters
  • Comforms to MIL-H-965
  • Shock and EMI protection


Electric tankless water heater for shipboard marine use model MHX/MTX
  • Tankless Marine Heater
  • Provides 180°F water
  • 11 to 54 KW - 1 or 3 Phase

Fully Integrated Package

Shipboard Electric Water Heating System Model Integrated Skid
  • Customized to your specifications
  • Full featured system ready for your application

Electric Booster

Electric booster water heater Model J
  • Booster Heater
  • Provides 180°F water
  • Up to 88 KW - 1 or 3 Phase

Foodservice Tankless
Electric Booster

Electric tankless booster heater Model JTX
  • Tankless Booster Heater
  • Provides 180°F water
  • 11 to 54 KW - 1 or 3 Phase

Foodservice Gas
Fired Booster Heater

Gas fired booster heater Model PT
  • Gas Booster Heater
  • High Efficiency Condensing Burner
  • 55,000 to 199,000 BTU

Foodservice Point-of-Use
Water Heaters

Mini compact 2.5 Gallon Booster Heater
  • Hot water for remote locations
  • Perfect for glasswashers
  • 120V models available

Foodservice Sanitizing
Sink Heater

Model JSK
  • Provides rinse water for manual warewashing
  • Perfect for 3 compartment sinks
  • Available in 3,4,6 or 9 KW

Food Rethermalizer Baine-Marie Heater

Model JFR
  • Mounts under sink or holding vessel
  • Keeps food at SERV safe temperature
  • Available up to 9 KW

Foodservice Point-of-Use
Water Heater

Compact point-of-use electric water heater Model J1SSA
  • Point-of-Use
  • 1 Gallon Capacity
  • 1000 Watts - 1 Phase

Immersion Heating

Electric immersion tubular style heaters
  • Immersion Electric Heaters
  • Flanged or Screw Plugs Types
  • All KW ratings - 1 or 3 Phase

Heat Transfer

Heat exchanger and heating coil water heaters
  • Immersion Heat Transfer Coils
  • U tube type
  • Range of Materials

Stainless Steel T & P
Relief Valve

Stainless Steel T & P Relief Valve
  • 316 L Stainless Steel construction
  • Corrosion Resistant
  • ASME Section IV, HV Stamped

Gas Heat Exchanger

gas hx
  • 316 L SS Heat Exchanger/Burner
  • 55,000 BTU/HR input
  • Digital temperature controller
Electric High Capacity
Gas Fired
Steam Fired
Special Purpose
Foodservice Equipment
Elements & Exchangers
Product Center
Commercial heavy duty electric storage water heater Model SE
Still have questions? Complete this form
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Model SE

Commercial Electric Water Heater

6-119 Gallon Capacity, up to 58 KW in all Three Phase Voltages, Over 6 KW in all Single Phase Voltages

The Hubbell Model SE water heater incorporates a number of features not found in other conventional heaters which makes it better suited to resist the highly corrosive effects of hot water. The heart of a Hubbell water heater is a superior storage vessel which utilizes a specially formulated Hydrastone cement lining, solid copper-silicon threaded tank openings and a built-in trap device, all of which ensure a longer lasting and energy efficient water heater.

When you specify and install a Hubbell Model SE, you will have confidence in knowing that the owner will be provided with a long lasting, trouble-free source for hot water.

Learn More About Hydrastone Cement Lining

Lead Free Product cULUS Listed
  • Heavy Duty Construction

    • Hydrastone cement lining provides longer tank life
    • Copper-silicon alloy tappings cannot rust or corrode
    • High impact composite jacket cannot rust or corrode and elimantes damage during installation and transit
  • High Efficiency

    • Polyurethane foam insulation reduces heat loss
    • Built-in heat trap lowers operating costs
  • Wide Selection

    • Built to meet your exact needs
    • Numerous options available for specialized applications
  • Reliable

    • Full five (5) year Non Pro-rated tank warranty is standard
    • Full ten (10) year Non Pro-rated tank warranty can be specified for extended protection

Model SE Water Heater Specifications

Capacities: 6 thru 119 Gallons
Orientation: Vertical
Voltages: 208 thru 600 Volt
Phase: 1 Φ and 3 Φ
Inlet Size:
Below 45 KW: 3/4" Female NPT
45 KW and over: 1 1/2" Male NPT
Outlet Size:
Below 45 KW: 3/4" Male NPT
45 KW and over: 1 1/2" Male NPT
Drain Size: 3/4" GHT
Relief Valve Size: 3/4" Female NPT
Relief Valve Type: T&P, 210°F, 150 psi
Hi-Limit: 190°F Manual Reset
Thermostat Range:
Surface: 110-170°F
Immersion: 100-190°F
Design WP: 150 psi
Design TP: 300 psi
Elements: Incoloy Sheathed
Model SE: 2" Polyurethane Foam
Model SM: 3" Polyurethane Foam
Tank Warranty:
Standard: 5 Year Non Pro-Rated
Optional: 10 Year Non Pro-Rated
Electrical Warranty: 1 Year
Jacket: High Impact Colorized Composite
Color: White and Black

Standard Equipment

  • Non-ferrous solid copper-silicon threaded openings for maximum corrosion resistance
  • Magnetic contactor(s) are heavy duty resistive load type rated for 200,000 cycles
  • Incoloy sheathed immersion heating elements
  • Built-in heat trap to improve operating efficiency (3/4" inlet/outlet models only)
  • Surface thermostat 110-170°F range
  • Immersion thermostat (100-190°F) furnished as standard when required due to high recovery versus storage ratio.
    On 6-30 gallon heaters 5 KW and above
    On 40 and 50 gallon heaters over 8 KW
    On 65 gallon heaters over 12 KW
    On 80-119 gallon heaters over 15 KW
  • Surface safety hi-limit cut out with manual reset button (190°F)
  • Immersion safety hi-limit cut out with manual reset button (Standard on heaters 45 KW and above)
  • 1 1/2" Male NPT inlet/outlet connections (Standard on heaters 45 KW and above)
  • ASME/CSA rated temperature and pressure relief valve set at 150 psi, 210°F
  • 2" thick polyurethane foam insulation
  • High impact non-corroding colorized composite protective jacket
  • Cold water inlet diffuser with drain valve

Outline Dimensions

Model SE Outline Dimensions

Model SE Dimensional Data

Storage Capacity (Gallons) Base Model Number Maximum KW Input Dimensions (Inches) Shipping Weight (lbs.) Optional 3" Foam Insulated Models SM
Floor to Inlet
Floor to T&P
Storage Capacity (Gallons) Diameter "A"
6 SE06 3 15 17.5 5 12.5 115 6 N/A
10 SE10 10 20 21 7 15 145 10 22.75
20 SE20 20 20 33 7 27 175 20 22.75
30 SE30 20 20 41.5 7 34 210 30 22.75
40 SE40 58 20 58.75 7 51 265 40 22.75
50 SE50 58 22.75 51 7 43 295 50 26
65 SE65 58 26 48 8 40 335 65 28
80 SE80 58 26 58 8 51 410 80 28
100 SE100 58 26 69.5 8 62 425 100 28
119 SE120 58 28 69.25 8 62 495 119 30
30 SEU30 20 22.75 33 7 24 215 30 26
40 SEU40 58 26 33 7 24 295 40 28
50 SEU50 58 28 36 7 27 300 50 30
Note: Under counter Models SEU40 and SEU30 hot water oulet is located on the side.

KW Selection Chart With Amperage

Standard Rating KW BTU/HR GPH Recovery at 100°F Rise (°FΔT) Amperage Ratings At Various Voltages
Single Phase Three Phase
208V 240V 480V 208V 240V 380V 415V 480V
3 10,236 12 14 13 6 8 7 5 4 4
4 13,648 16 19 17 8 11 10 6 6 5
6 20,472 25 29 25 13 17 15 9 8 7
8 27,296 33 39 33 17 22 19 12 11 10
10 34,120 41 48 42 21 28 24 15 14 12
12 40,944 49 58 50 25 33 29 18 17 15
15 51,180 62 72 63 31 42 36 23 21 18
18 61,416 74 87 75 38 50 43 27 25 22
20 68,240 82 96 83 42 56 48 30 28 24
24 81,888 98 115 100 50 67 58 37 33 29
30 102,360 123 144 125 63 83 72 46 42 36
36 122,832 148 173 150 75 100 87 55 50 43
40 136,480 164 192 167 83 111 96 61 56 48
45 153,540 185 216 188 94 125 108 69 63 54
50 170,600 205 240 208 104 139 120 76 70 60
54 184,248 221 260 225 113 150 130 82 75 65
58 197,896 238 279 242 121 161 140 88 81 70
1. The KW selections above are shown for convenience. A full selection of KW ratings from 1 to 58 KW is available by simply entering the desired KW into the model number.
2. Units 45 KW and over are supplied with 1 1/2" Male NPT inlet/outlet connections and immersion hi-limit.
3. For alternative voltages, including 220, 277, 440, 460, 575 and 600 volt, please contact us directly for available KW selection.

Optional Equipment

  • Full 10 Year Non Pro-Rated tank warranty
  • Low voltage control circuit (fused) transformer
  • Electronic solid state low water cut off
  • Power circuit fusing
  • Immersion thermostat (specify 100-190°F or 30-110°F Range)
  • Immersion adjustable safety hi-limit cut out with manual reset (100-240°F)
  • Solid state electronic digital display temperature controller with multi stage temperature control, low water cut out, and leak detection sensor
  • NSF approved floor mount 6" high legs
  • UL EPH/ANSI NSF tank lining
  • Storage tank constructed from (304L or 316L stainless steel, copper-nickel) for maximum tank life
  • ASME tank construction
  • 1 1/2", 2" Male NPT brass inlet and outlet water connections (heat trap not available)
  • Foam insulation 3" thick for improved operating efficiency
  • Combination temperature and pressure gauge; 2 1/2" dial, 70-250°F, 0-200 psi
  • Upper and lower heating element design for quicker recovery
  • Built-in circuit breaker with or without shunt trip protection
  • Built-in non-fused On/Off disconnect switch
  • Electro-mechanical 7-day time clock with battery back-up
  • Building Management System (BMS) control package for remote operating/alarm capability
  • Horizontal construction, ceiling hung or base mounted
  • NEMA 4 weather resistant construction for installation in "wet" areas
  • Steel wall shelf for 6-40 gallon models
  • Integrally welded seismic attachment points

Please note: optional equipment may impact overall dimensions and weight. Please request submittal drawing from factory.

Model Number Designation SE

Step 1
SE = 2" Foam
SM = 3" Foam
SEA = Pressure Vessel
is ASME Stamped
Step 2

6 - 119
U.S. Gallons
Step 3
Upper KW:
Element bank
0-58 KW
(typically 0)
Not available in
6, 10, 20 Gallon
capacity heaters

Step 4
Lower KW:
Element bank
1-58 KW

Step 5
SL = Hydrastone
Cement Lined Tank
CN = Solid 90/10
Copper Nickel tank
SS = Solid type
304L or 316L
stainless steel tank

Step 6
RS = 208-1-60
R = 208-3-60
S = 240-1-60
T = 240-3-60
W = 277-1-60
T3 = 380-3-50/60
T7 = 415-3-50/60
T5 = 440-3-60
T4 = 480-3-60
T4S = 480-1-60
T6 = 600-3-60



Model SE with a 2" foam insulated storage tank of 120 Gallons with 18 KW in the lower element bank. Storage tank is lined with Hydrastone cement and the electrical controls operate at 480 V, three phase, 60 Hz power.

Model SE Submittal Drawing
Printable Version
Search FAQs

Model SE Specific Questions

Which is better for me, a tankless or storage type water heater?

It depends. A tankless water heater is sometimes referred to as a Point-of-Use (POU) or instantaneous water heater. Due to the relative small physical size of a tankless water heater compared to a storage tank water heater, a tankless option can be advantageous from a space saving perspective and can sometimes be installed closer to where you want hot water (hence the term POU). However, tankless heaters are not suited for many applications, so it is critical that before choosing to go tankless you have carefully considered all of the factors that sometimes make the tankless option more complicated and risky compared to a storage type water heater. In particular, you should understand the operational characteristics, maintenance requirements, reparability, and sometimes significant installation requirements of a tankless water heater before making a decision. Tankless units do not store heated water like a storage type water heater; they only heat water as there is demand and therefore must be sized to meet the maximum flow for the application. In some cases a tankless water heater may improve operating efficiency, but possibly at the expense of user comfort. Hubbell tankless water heaters are available in Electric Tankless or Gas Tankless. Watch our video on tankless vs storage.

How does the heat trap work?

The Hubbell water heater is constructed with a heat trap installed within the water heater’s hot water outlet connection. This device helps prevent heat from escaping through the storage tank’s hot water outlet during standby periods, resulting in improved operating efficiency. The heat trap is constructed from a specially designed bronze nipple with an internal floating ball that during standby periods of no flow settles and closes off the storage tank thereby preventing thermal conduction of hot water radiating through the hot water outlet.

What is the max water temperature setting?

The Hubbell cement lined tank is suitable for storing water up to 194°F. However, it should be noted that your water heater will likely require optional control accessories to achieve this temperature, but there is no concern regarding the ability of the lining to withstand this temperature. Additionally, there are numerous safety concerns that must be considered when storing water at elevated temperature, please consult factory.

When should I specify an immersion thermostat?

An immersion thermostat should be specified when the desired operating temperature either is below 110F or above 170F, or the water heater is to be used in an unusual application that is outside of the normal operating parameters of a typical domestic water heater. Otherwise, the type of thermostat (surface or immersion) is determined by Hubbell as is appropriate for the kw and storage tank size of the water heater.

Why is Hydrastone Cement a better choice over glass lining?

Cement lining provides guaranteed 100% coverage with a minimum thickness of 0.5” over all internal tank surfaces. In comparison, glass lining is approximately 0.005” thick and includes imperfections, pinholes and variation in coverage thickness resulting in portions of unprotected steel tank exposed to corrosion. In an attempt to compensate, glass lined tanks include a sacrificial anode in an effort to slow down the corrosion of the tank. Cement lined tanks on the other hand do not require an anode due to the integrity of the lining. As such, a cement lined tank will far outlast a glass lined tank. For a more complete explanation of the benefits of the Hubbell cement lining please click on the following link Cement Lining

General Questions

Where can I purchase a Hubbell water heater?

There are numerous ways to purchase a Hubbell water heater depending upon the model you desire and your geographic location. The easiest way is to contact Hubbell directly at 800-647-3165 and ask for the sales department where you will be directed to either our local representative or our order entry department for quick and easy ordering.

Where can I purchase replacement parts?

Parts are available for your Hubbell water heater direct from the factory. Please call 800-647-3165 and ask for our parts department. Please have your model and serial number handy.

I don't see the size or feature I need, what do I do?

Hubbell has more than 35 product families available in over 4,000,000 configurations. There are numerous features, configurations and ratings we provide but for practical reasons are are not listed in the sales brochure. If you have a specific requirement and you do not see it in the brochure, please contact a Hubbell Sales Engineer...chances are we have what you need.

What should I know about Legionella disease?

Legionella is the bacteria responsible for Legionnaire’s Disease, an acute bacterial infection of the lower respiratory tract. This bacterium was first identified in 1977 by the Centers for Disease Control as the cause of an outbreak of pneumonia that caused 34 deaths at a 1976 American Legion Convention in Philadelphia. Pontiac Fever is a less severe, non-pneumonia, flu-like disease that is associated with and likely caused by Legionella bacteria. Legionella is a fairly common water bacterium and has been found to exist widely in many surface water sources including lakes, rivers, streams and ponds. It can also be found in ground water sources and some soils. At the levels found in these naturally occurring sources it typically does not pose a threat to public health. When the bacterium enters a domestic water system it can find an ideal host environment of warm water temperatures (105-115°F), stagnant water areas (isolated storage tanks and dead-end piping legs) and ample food sources (sediment, scale, deposits and biofilm). Under these conditions Legionella can rapidly colonize, forming higher concentrations that can pose the public health threat of Legionnaire’s Disease. There are many methods of controlling colonization of Legionella bacteria. However, a widely accepted and preferred method is to maintain the hot water system storage temperature continually at or above 140°F. Unfortunately, the elevated temperature necessary to minimize the growth of and kill Legionella bacteria has the potential to cause serious thermal shock and scalding injuries. As such, many plumbing engineers will specify that the water heater be set to maintain water temperatures at 140°F or higher to reduce the risk of Legionella, but then specify the appropriate mixing valve to ensure safe delivery of hot water to the fixtures. For a more thorough discussion of Legionella please go to here and the following link to the US Department of Labor OSHA information regarding Legionnaires’ Disease OSHA here

My question is not found in these FAQ’s, where do I look next?

Check out the Hubbell Product Center at Here for a complete listing of all technical documentation available by model. Get easy access to Installation, Operation & Maintenance manuals, Sales Brochures, Service Bulletins, Wiring Schematics, Parts Breakdowns and various other technical documents related to the full line of Hubbell water heaters. Or, if you prefer, please call us at 800-647-3165 and ask to speak to a Sales Engineer.


Many of our products literature is available online for download. To open these files, a PDF viewer is required. If you do not have one, Adobe provides Acrobat Reader free of charge for viewing only. Use this link to download Acrobat Reader. You may also choose to download the file to your PC for future reference or printing. On most operating systems, simply right-click on the links below, choose "Save target as..." or "Save link as...", choose a location and it will save the document to your computer for future reference.

Model SE Specific Questions

Where can I purchase replacement parts?

Parts are available for your Hubbell water heater direct from the factory. Please call 800-647-3165 and ask for our parts department. Please have your model and serial number handy.

For Further Assistance Please Contact a Hubbell Tech Support Rep.

Tech Support Email

Hubbell Heaters
45 Seymour Street
P.O. Box 288
Stratford, CT 06615-0288
Tel: 203-378-2659
Fax: 203-378-3593
Product Center
Hubbell Binder

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