5SJ4203-8HG42
Siemens
The Siemens 5SJ4203-8HG42 is a 2-pole miniature circuit breaker with a D-type tripping characteristic. It offers a 3A operational current and a 10kA switching capacity.
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This Siemens 5SJ4203-7HG42 is a 2-pole miniature circuit breaker (MCB) from the 5SJ4 series. It features a C-type tripping characteristic and a rated operational current of 3A at 30°C, with a switching capacity of 10kA according to EN 60898.
The breaker is suitable for AC/DC voltage types and operates at a rated supply voltage of 400V AC. It meets UL 489 standards for operating voltages up to 277V AC and 125V DC (2-channel).
Designed for mechanical engineering and industrial environments, this MCB offers a mechanical service life of 10,000 switching cycles. It has a protection class of IP20 with connected conductors and IP40 in the handle range. The unit is halogen-free, sealable, and silicon-free, with combined terminals at both the top and bottom for versatile connections.
Key electrical specifications include an insulation voltage of 440V AC and a short circuit breaking capacity of 10kA according to UL 1077. The device supports conductor cross-sections from 0.75 mm² to 25 mm² with a maximum tightening torque of 3.5 N·m.
With dimensions of 121mm height, 36mm width, and 70mm depth, it mounts on a standard DIN rail. The breaker operates within a vibration resistance of 50 m/s².
The rated operational current is 3A at AC (at 30°C and 40°C).
The tripping characteristic is C.
The switching capacity is 10kA according to EN 60898 and 15kA according to IEC 60947-2.
The rated supply voltage is 400V AC, with a maximum operating voltage of 277V AC (UL 489) and 60V DC (single channel) or 125V DC (2-channel).
The mechanical service life is 10,000 switching cycles.
It mounts on a standard DIN rail and can be installed in any position.
Yes, the product is halogen-free.