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The Siemens 5SJ42207HG41 is a 2-pole miniature circuit breaker designed for industrial and mechanical engineering applications. It features a current rating of 20A and a voltage rating of 440V AC/DC. The tripping characteristic is Class C, suitable for protecting circuits against overcurrents and short circuits.
This circuit breaker is designed for DIN rail mounting and has a mechanical service life of 10,000 switching cycles. It offers a switching capacity of 10 kA according to EN 60898 and 15 kA according to IEC 60947-2. The device includes touch protection and is sealable, with combined terminals available at both the top and bottom.
Key electrical specifications include an insulation voltage (Ui) of 440V AC and a rated supply voltage of 400V AC at 50 Hz. It can operate at AC voltages up to 240V according to UL 489 and CSA C22.2 No. 5-02, and DC voltages up to 60V (single channel) or 125V (2-channel).
The physical dimensions are 110 mm in height, 36 mm in width, and 70 mm in depth, with an installation depth of 70 mm. It occupies 2 modular width units on a standard mounting rail. The protection class is IP20 with connected conductors and IP40 in the handle range.
The operational current rating for the Siemens 5SJ42207HG41 is 20A at 30°C and 40°C.
The insulation voltage (Ui) is rated at 440V AC, and the rated supply voltage is 400V AC. It operates at a maximum of 240V AC according to UL 489 and CSA C22.2 No. 5-02.
The tripping characteristic class is C.
This circuit breaker is designed for mounting on a standard DIN rail.
The short circuit breaking capacity (Icn) at AC according to UL 1077 and CSA C22.2 No.235 is 14 kA.