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The Siemens 5SJ4140-6HG40 is a 1-pole miniature circuit breaker from the 5SJ4 series, suitable for industrial and mechanical engineering applications. It features a tripping characteristic class B and a rated operational current of 40A at AC.
This circuit breaker is designed for a rated supply voltage of 400V AC and offers a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2. It has an insulation voltage (Ui) of 440V AC and a short circuit breaking capacity (Icn) of 14kA according to UL 1077 and CSA C22.2 No.235.
With a mechanical service life of typically 10,000 switching cycles, the 5SJ4140-6HG40 is built for durability. It supports conductor cross-sections from 0.75 mm² to 25 mm² with core end processing and has a maximum tightening torque of 3.5 N·m for its screw-type terminals. The unit is designed for DIN rail mounting and has dimensions of 90mm height, 18mm width, and 70mm depth.
Additional features include touch protection, halogen-free construction, and suitability for sealable applications. It is rated for an overvoltage category of 3 and a degree of pollution of 3.
The rated operational current is 40A at AC, 30°C, and 40°C.
The rated supply voltage at AC is 400V.
The switching capacity is 10 kA according to EN 60898 and 15 kA according to IEC 60947-2.
It is designed for DIN rail mounting.
Yes, it is RoHS3 Compliant.
The MSL is 1 Unlimited.
Yes, it is halogen-free.