Hydraulic Magnetic Circuit Breaker-SF Series Long cover

Brand: FR-CBI / FR-MAG

Name: SF Hydraulic MagnetIc Circuit breaker

Model: SF(1,2,3)-G3

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SF series Hydraulic circuit breaker is mainly suitable for overload and short circuit protection. It adopt hydraulic magnetic trip instead bimetal .So it has a high sensitivity and it is also not effected by the ambient temperature. It is especially used for illumination and distribution in industry and commerce. They are mainly used for overload and short-circuit protection within the circuit of AC 50Hz/60Hz, rated voltage of single pole or double up to 240V, three poles up to 415V. They can also be used for an infrequent switch-over of the circuit and illumination under normal conditions. They are comply with IEC 157-1973, BC4752-1977 and BS 3871 part 1

Technical Data

TypeSF1-G3(Long Cover)SF2-G3(Long Cover)SF3-G3(Long Cover)
Number of poles 1 2 3
Standard Current Ratings(A)1-5-10-15-20-25-30-35-40-45-50-60-70-80-90-1001-5-10-15-20-25-30-35-40-45-50-60-70-80-90-1001-5-10-15-20-25-30-35-40-45-50-60-70-80-90-100
Rated Breaking Capacity 240/415V AC


Withstand Current - - -
Rated Voltage AC 240V 240V 415V
Max Current Rating 100A 100A 100A
Time Delay Curve 1 or 2 2 1 or 2
Sensitivity/Leakage initiating Curve


Number of Modules 2 4 6
107*26*66 107*52*66 107*52*66
Colour of handle Orange or white white Orange or white
Standrd approval IEC/BS/AS IEC/BS/AS IEC/BS/AS
Whether can be used as isolator

Overall Dimensions