It combines magnetic and electronic trip technology, with a magnetic tripping window of 42 to 98 A, so it handles inrush without nuisance trips but clears a hard fault fast. Rated breaking capacity hits 100 kA Icu at 240 V AC and 50 kA at 415 V AC per IEC 60947-2, which means it can interrupt a bolted fault on a 400 V line without upstream fuses having to clear — a real advantage when you're packing breakers into a compact MCC bucket. The rotary handle gives positive isolation indication — it's marked suitable for isolation per IEC 60947-1 — so a padlockable OFF position counts as a visible break for LOTO procedures.
Where it lands in a panel
At 81 mm wide, 155 mm tall, and 165 mm deep, it fits standard DIN-rail enclosures without crowding adjacent devices. The EverLink BTR screw terminals on top accept up to 70 mm² solid or 50 mm² flexible; the bottom side goes up to 95 mm² solid or 70 mm² flexible. Tightening torque is 9 N·m for the larger cables, 5 N·m for the smaller ones — no special tool needed beyond a decent torque screwdriver. IP40 front-of-panel protection and IK07 impact resistance mean it's fine for general industrial enclosure use, but not washdown zones. Pollution degree 3 per IEC 60947-2 — that's the standard for conductive pollution in industrial environments, so no special conformal coating or sealed enclosure required for most factory floors.
Compliance documentation covers EN/IEC 60947-4-1 and EN/IEC 60947-2, plus fire resistance tested to 960 °C per IEC 60695-2-11 and climatic withstand per IACS. The grey RAL 7016 housing is standard across the TeSys Deca line.
Sizing and selection notes
Motor power coverage at 400-415 V AC: 1.5 kW through 3 kW depending on the exact voltage and frequency. At 690 V it covers up to 7.5 kW. Electrical durability is 40,000 cycles at AC-3 duty at 440 V, both at full load and at half-load In/2. That's enough for frequent start-stop applications like a cycling compressor or a batch conveyor. Power dissipation per pole is 6.1 W, so total heat load for the three poles is about 18.3 W at rated current — factor that into your enclosure thermal calculation if you're packing multiple breakers in a small cabinet.