C-curve 4 A MCB for branch-circuit protection
2-pole 1P+N switching with neutral conductor
Two-pole design (1P+N) switches both phase and neutral, with neutral conductor switching confirmed. Occupies 2 modular width units (36 mm) on a DIN rail, with a depth of 76 mm and a 70 mm installation depth — fits standard 80 mm deep enclosures without door interference.
Thermal derating and environmental limits
Rated 4 A at 35 °C ambient; derates to 3.76 A at 40 °C, 3.5 A at 50 °C, and 3.22 A at 60 °C. In a warm panel, size the load accordingly or allow more ventilation around the breaker. Operating temperature range -40 to 75 °C, pollution degree 3, overvoltage category III.