What this breaker is and where it fits
The Siemens 5SY4610-5 is a 4-pole miniature circuit breaker from the SENTRON family, configured as 3P+N with neutral conductor switching. It occupies 4 modular width units on a DIN rail and is rated for any mounting position, which simplifies panel layout in mechanical engineering and industrial control enclosures. Characteristic A means the magnetic trip operates at 2 to 3 times rated current — faster than B or C curves — making this breaker suited for protecting semiconductor circuits, control transformers, or sensitive loads where short overcurrents must be cleared before they damage downstream electronics. The interrupting capacity is rated at 10 kA per EN 60898-1 for household-type installations, and 20 kA per IEC 60947-2 for industrial panel duty. Under UL 1077 and CSA C22.2 No. 235, the rating is 5 kA. For DC circuits, it carries 15 kA per IEC 60947-2 at 60 V, with a maximum DC operating voltage of 72 V. The AC voltage rating is 400 V nominal, with a maximum of 440 V in both single-phase and multi-phase operation. Frequency is 50/60 Hz. Ambient temperature range spans -40 °C to 75 °C, with humidity derating above 55 °C.
Lifecycle and sourcing posture
Compliance documentation includes IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077/CSA C22.2 No. 235 certifications. The breaker is halogen-free and silicon-free, and carries an IP20 protection class with connected conductors.
Integration notes
Mounts on a DIN rail via the quick assembly system. Depth is 76 mm, width 72 mm, height 90 mm; installation depth is 70 mm. The combined terminal design accepts supply from any position, and the enclosure is sealable for tamper-proofing. Pollution degree 3 and overvoltage category III suit it for fixed industrial installations where conductive contamination or transient overvoltages are expected. Vibration resistance per IEC 60068-2-6 covers ±1 mm at 5 to 25 Hz and 50 m/s² at 25 to 150 Hz.