Question
How should you choose between the K2CA-DO Over-Current Relay and K2CA-DO3 Over-Current Relay ?
Answer
Select the model according to the Breaker's trip method.
K2CA-DO-[]: Current transformer secondary current tripping
K2CA-DO3-[]: Voltage, no-voltage, DC tripping
Note:The box "[] " in the model number is for the case code. The following three types are available.
D2: Square embedded pull-out type
F4: Compact square embedded type
R2: Compact round embedded type
The appearance of each type is shown below.
 
       S8VS
S8VS 
                    
                  Multi-Function Indication Monitor for Production Site Visualization * (* Models with indication monitor)
 ZJ-FA20
ZJ-FA20 
                    
                  High-speed, High cost performance Ionization
 S8JX
S8JX 
                    
                  Flexible Selection of Reliability and Ease of Operation with the S8JX. New Models with Harmonic Current Suppression for a Broader Lineup.
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