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The Siemens 5SJ4318-7HG42 is a 3-pole miniature circuit breaker designed for reliable circuit protection in industrial and mechanical engineering applications. It offers a rated operational current of 15A and a switching capacity of 10kA according to EN 60898 and 15kA according to IEC 60947-2.
This circuit breaker operates with a C-curve tripping characteristic and supports AC/DC voltage with a rated supply voltage of 400V AC and a maximum operating voltage of 277V AC per UL 489. It also supports DC operation up to 60V single channel and 125V 2-channel.
Featuring a compact design with a width of 54mm and a depth of 70mm, it mounts on a standard DIN rail. The breaker includes combined terminals for top and bottom connections and offers features like touch protection, sealability, and halogen-free construction. Its mechanical service life is typically 10,000 switching cycles.
15 A at 30°C and 40°C ambient.
Rated supply voltage of 400 V AC, with maximum operating voltage of 277 V AC per UL 489 and 60 V DC (single channel) or 125 V DC (2-channel).
10 kA according to EN 60898 and 15 kA according to IEC 60947-2.
C-curve.
DIN rail mounting.
Height 121 mm, width 54 mm, depth 70 mm.
487 g.