Heater: 5.5 kW Tube LCD EYELET STYLE

6500-403 – 5.5 kW Low Flo Square Back Heater

Can replace with 6500-402 – except the terminal connections would need to be changed

Product Features and Benefits

• 5.5 kW Titanium Element: A long-life titanium heating element delivers full heating power at 240 volts, and it also runs at reduced output on 120 volts.
• Low-Flo Square-Back Design: A compact square-back heater assembly with a stainless steel tube and 3/4″ fitting, made for low-flow spa plumbing.
• Built-In Thermal Cut-Out: Protects the spa from overheating, and the high limit disk (6000-093) comes with the heater.
• 3-Wire Fork Connectors: The 3-wire harness with fork connectors makes it easier to hook up to the spa.
• Matches Original Performance: Meets or exceeds the specifications of the original heater made by Laing Thermotech (Laing no longer makes heaters) or Therm Products.
• Wide Sundance and Jacuzzi Fit: Covers many Sundance 680 and 780 series spas, Palermo, Bahia and Cayman, and a long list of Jacuzzi J-series models.
• Companion Barb Fitting Available: If you need the newer stainless steel heater barb fitting, it is available as a related item.

Product Specifications

• Manufacturer: Balboa Water Group
• Type: Low-flo square-back heater assembly
• Power: 5.5 kW at 240 V; 1.375 kW at 120 V
• Heating Element: Titanium
• Tube: Stainless steel
• Fitting Size: 3/4″
• Wiring: 3-wire with fork connectors
• Safety: Built-in thermal cut-out; high limit disk 6000-093 included
• Replaces: 6500-403 (same as the 6500-402 except the terminal connections would need to be changed)
• Barb Fitting Note: In November 2010 the heater barb adapter was removed from all 680/780 models with a circulation pump and a plug (6000-124) was installed in its place; if you need the barb fitting, order it from the related items

Dimensions

• Overall Size: 23″ x 10″ x 15″

Electrical Information

• Rating: 5.5 kW at 240 V; 1.375 kW at 120 V
• Connections: 3 wires with fork connectors
• Typical Element Resistance: 9 to 12 ohms across the two heater terminals, per the page’s testing guide (under 25 ohms can be acceptable depending on the heater’s kW)

Used in the following Hot Tubs

• Sundance Spas
• Jacuzzi Spas
• Sweetwater
• Sundance Spas models: 2011+ select Constance and Victoria; 780 Montclair (04/2013-03/2017); 780 Hamilton, Chelsee and Certa (2007-03/2017); 780 Camden (2007-03/2013); 680 Hartford and Hawthorne with a circulation pump (2007-2012); 680 Burlington with a circulation pump (2008-2012); Palermo, Bahia and Cayman (2003-2006)
• Jacuzzi models: all 2011+ J-LX and J-LXL; J-350 and J-330 (2002-2006); J-335, J-345 and J-355 (2004+); J-325 (2005-2007); J-375 and J-365 (2007+); J-270 and J-280 with circulation pumps (2007+); J-300 LED series including J-320, J-325 (except 2004 and 2008+), J-330, J-335, J-340, J-345, J-270, J-280 and J-230

Related Items

• 2560-040 – Flow Switch, Sundance Spas
• 6540-034 – Hose Barb for Sweetwater, Portofino Spa Heater (stainless steel)
• 6000-124 – Plug, 1/8-27 NPT SS (used when the heater barb adapter is removed)

Alternate Part Numbers

• 2040056 (Balboa Water Group part number)
• 6500-403 (same heater with different terminal connections)