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This Siemens 5SJ4 miniature circuit breaker is designed for reliable protection in industrial and mechanical engineering applications. It features a 2-pole configuration with a 5A rated operational current and a C-trip characteristic, suitable for protecting circuits against overloads and short circuits.
The breaker operates at a rated supply voltage of 400V AC and has an AC operating voltage of up to 240V according to UL 489 and CSA C22.2 No. 5-02. It boasts a high switching capacity current of 10 kA according to EN 60898 and 15 kA according to IEC 60947-2, with a short circuit breaking capacity of 14 kA.
Constructed with halogen-free and silicon-free materials, this circuit breaker ensures environmental compliance. It features touch protection and combined terminals for ease of installation. The device is designed for DIN rail mounting and has dimensions of 110mm height, 36mm width, and 70mm depth, with an installation depth of 70mm. It supports conductor cross-sections from 0.75 mm² to 25 mm² with core end processing.
C-curve.
Rated AC supply voltage 400V, insulation voltage 440V; max AC operating voltage 240V (UL/CSA). DC operation: max 60V single-channel, max 125V 2-channel.
10kA per EN 60898, 15kA per IEC 60947-2, and 14kA per UL 1077.
On standard DIN rail, in any mounting position.
CCC, CE, CSA, EAC, UL, VDE.
The rated current is 5A at 30°C and 40°C, de-rating to 4.9A at 45°C, 4.8A at 50°C, 4.6A at 55°C, and 4.5A at 60°C.
IP20 generally, IP40 in the handle area with connected conductors.