The 3VA2063‑5KQ46‑0AA0 sits at the top of the 3VA2 line‑up, pairing the flagship ETU860 trip unit with a 4‑pole M‑class frame. It is built for installations that demand full LSIG coordination, adjustable neutral protection and integrated communication – all while keeping a manageable 55 kA breaking footprint.

What the ETU860 delivers

• Overload (L): Ir = 25…63 A, I²t curve, delay tr = 0.5…25 s.
• Short‑time (S): Isd = 0.6…10 × In (38…630 A), tsd = 0.05…0.5 s.
• Instantaneous (I): Ii = 1.5…12 × In (95…756 A).
• Ground‑Fault (G): Ig = 0.25…1 × In, tg = 0.05…0.8 s. Detected via residual current summation; switchable.
• Neutral (N): Adjustable OFF, 40%…160% × In.

Why ETU860 over ETU560?

ETU860 provides finer granularity in short‑time and ground‑fault settings, a wider L‑delay range (up to 25 s), and enhanced communication capabilities with integrated measurement. It is the go‑to choice when you need comprehensive system data alongside protection.

Technical Specifications

Installation & Application

• Fixed mount on 35 mm DIN rail; clamp terminal connection.
• Suited for system protection in industrial main distribution boards, motor control centres, and infrastructure where 4‑pole LSIG coordination and remote monitoring are required.