When you need four‑pole switching on a high‑fault busbar system, the 3VA2063‑6HN42‑0AA0 delivers H‑class strength without the cost of communication modules. It packs a configurable ETU350 LSI trip unit into a compact frame, while the nut‑keeper‑kit terminals create a durable, low‑resistance connection that stays tight under vibration.

Protection capabilities

• Overload L: Ir 25‑63 A, I²t characteristic, tr 0.5‑17 s.
• Short‑time S: Isd 1.5‑10 × Ir – note ETU350 bases Isd on Ir, not In, for simpler coordination.
• Instantaneous I: Fixed Ii = 12 × In (756 A).
• Neutral: Switched OFF or 100%, ideal for 4‑pole isolation needs.
• No earth‑fault monitoring, no remote communications – what you get is solid, no‑nonsense protection.

Technical data

• Rated insulation voltage Ui: 800 V AC
• Rated operational voltage Ue: 690 V AC
• Breaking capacity Icu@415 V: 85 kA (H); Ics: 85 kA; Icm: 187 kA
• Mechanical life: 25 000 ops; Electrical life: 15 000 ops @415 V
• Degree of protection: IP40 front, IP20 overall
• Power loss: 1.8 W/pole (hot state)
• Net weight: 2.738 kg; Dimensions (H×W×D): 181×140×86 mm
• Standard: IEC/EN 60947‑2; Origin: Czech Republic

Installation & typical application

• Mounts on 35 mm DIN rail; nut keeper kit provides secure lug or busbar connection.
• Suited for high‑fault industrial main distribution boards, bus‑couplers, and machine‑group supplies where 4‑pole switching and N isolation are required without the need for communications.