When the main distribution panel demands an earth-fault protection that can sense residual currents across all four conductors, the 3VA2063‑6HM42‑0AA0 stands out. This 85 kA H‑class breaker packs an ETU330 LIG trip unit that combines overload, instantaneous and configurable ground‑fault detection, all terminated through vibration‑proof screw‑flat connectors for direct busbar integration.

Protection Functions

• Overload (L): Ir = 25…63 A, I²t characteristic, delay tr = 0.5…17 s.
• Instantaneous (I): Ii = 1.5…12 × In (95…756 A).
• Ground‑Fault (G): Ig = 0.25…1 × In, time delay tg = 0.1 s or 0.3 s. Detection by residual current summation across L+N conductors.
• Neutral (N): Adjustable OFF or 100% of In.

No communication function, no extra measurement — just reliable tripping when it matters.

Technical Specifications

Installation & Application

• Fixed mount on 35 mm DIN rail; screw‑flat connector (nut keeper kit) provides a secure, low‑resistance busbar termination.
• Suited for high‑fault industrial main distribution boards, motor control centres, and generator panels wherever 4‑pole switching, earth‑fault protection and mechanical resilience are required.