What it is and what it does
The Siemens SENTRON 5SY1710-4 is a 1-pole device circuit breaker with an integrated auxiliary switch (normally open), designed for equipment protection in control panels and distribution boards. Its F2 tripping characteristic provides a defined overload and short-circuit response curve, with a rated current of 10 A at 230 V AC and 60 V DC, and a breaking capacity of 3 kA AC per IEC 60934 and UL1077.
Mounting and integration
Snaps onto a DIN rail (35 mm) per EN 60715, occupying a single modular width unit (18 mm). The 1P+AS pole configuration means the auxiliary switch tracks the main contact position — useful for remote status feedback or interlock circuits without adding an external auxiliary block. Mounts horizontally or vertically; the 76 mm depth (70 mm installation depth) leaves clearance for wiring in standard enclosures.
Key ratings and what they mean for your panel
The F2 characteristic is a fast-acting curve suitable for protecting sensitive semiconductor loads or control transformers. Rated for 10 A at 230 V AC and 60 V DC, with a maximum of 72 V DC and 250 V AC under single-phase operation.
Environmental and compliance
Rated for ambient temperatures from -40 °C to 70 °C, with derating above 30 °C depending on humidity (30 °C @ 85% rF, 60 °C @ 20% rF). IP20 finger-safe terminals. Halogen-free and silicon-free construction. Complies with IEC/DIN EN 60934 and UL1077; vibration resistance per IEC 60068-2-6. Overvoltage category III, pollution degree 2.