1-pole C-curve MCB for 6 A branch circuits
The SENTRON 5SQ2170-2YA06 is a 1-pole miniature circuit breaker with a C tripping characteristic, rated 6 A at 240 V AC and a breaking capacity of 3 kA according to EN 60898.
At the reference 30 °C ambient the breaker carries its full 6 A, but that number drops steadily as the panel warms: 5.55 A at 40 °C, 5.37 A at 45 °C, 5.22 A at 50 °C, 5.01 A at 55 °C, and 4.8 A at 60 °C. The derating curve is the real selection criterion for any panel where the ambient exceeds 30 °C.
Integration — DIN-rail fit and pollution class
The IP20 finger-safe terminals accept standard copper conductors up to the rated cross-section. The 55 mm depth keeps the breaker flush with most 60 mm deep enclosures, preserving wiring space behind the DIN rail.