Hubbell CR User Manual

 

 

9

INDIVIDUALLY FUSED ELEMENTS 
To prevent the possibility of damage to control circuits and other elements in case of electrical 
overloads, fuses may be supplied for each element. Two types of fuses may be used; a type NON for 
voltages less than 250-volt or type JJS for voltage less than 600-volt. 
 
 
                                     

                                             

                                   

Type JJS         

     Type NON 

 
 
 
 
LOW WATER CUT-OFF   
Used as a safety device, the electronic low water cut-off is used to detect a low water situation and 
disengage the operating coils in the magnetic contactor(s). Once the condition is remedied, the low 
water cut-off switch is automatically reset.  

 

 
 
 
 
 
 
 
 
 
 

Conductive Type Low Water Cut-Off Relay 

 
OPTIONS 
The following optional features may be included in your water heater. Reference included drawing 
specific to your heater for further details. 
 
Stainless Steel Jacket 
An optional stainless steel outer jacket may replace the standard galvaneel covering. This optional 
jacket may be painted.