J Series Moulded Case Circuit Breaker

Brand: FR-CBI / FR-MAG

Name: J Series Moulded Case Circuit Breaker

Model: JS25(1P), J25S(3P)

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• AC and DC branch circuit installations• Telecom / datacom equipment• UPS equipment• Alternative energy equipment• Mobile power generation• Battery protection and switching• Municipal kiosks (feeder breaker).


• Hydraulic-magnetic technology• 100 % rating capacity; independent of ambient temperature• One and three poles• Ratings from 30 to 250 A• Trip button for mechanical confirmation of operation• Precision tripping characteristics• Reset immediately after overload

Technical Data

Product TypeCircuit Breaker
Circuit Breaker
Number of Poles13
Operating Voltages (AC)240VAC415VAC/512VAC
Minimum Current Rating30A
Maximum Current Rating250A
Interrupting Capacity25KA25KA/15KA
Operating Temperature Range-40 °C to +85 °C
Mounting OptionsSurface mount
Time Delay CurvesJS
Endurance10000 operations - 1500 electrical at rated current and voltage (IEC 60947-2)
Dielectric Strength1480 V (single pole) / 1830 - 2100 V (multi pole),50 Hz for one minute after testing
Humidity35 to 85% relative
AltitudeTested at 1600 m above sea level
Pollution DegreePD2 - Normally only non-conductive pollution occurs.
Temporary conductivity caused by condensation is to be expected.

Overall Dimensions




Time Delay Curves