What this MCCB delivers
The Siemens SENTRON 3VA1180-4EF36-0DH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 80 A continuous at up to 50 °C ambient without derating — above that it steps down to 76.8 A at 55 °C and 72 A at 70 °C, so the thermal curve is flat across most panel environments. Breaking capacity hits 121 kA at 240 V, 75.6 kA at 415 V, and 52.5 kA at 440 V — numbers that cover most industrial distribution boards and motor control centers fed from a transformer of moderate impedance. The TM240 thermal-magnetic release handles the overload and short-circuit curve; there is an undervoltage release (UVR) fitted, and the auxiliary contact block carries 2 auxiliary switches plus 1 trip alarm switch (HQ type) — enough for status feedback to a PLC or remote annunciator.
Panel fit and mounting
The 3VA1180-4EF36-0DH0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a compact footprint for a 3-pole MCCB at this interrupting level, so it fits standard distribution panelboards without crowding adjacent breakers. Front face carries IP40 protection, meaning it is sealed against tools and wires over 1 mm but not against water ingress — suitable for indoor panel installation, not washdown zones. Storage range from -40 °C to 80 °C and operating range from -25 °C to 70 °C cover unheated warehouses and hot switchgear rooms alike.
Lifecycle and sourcing posture
The integrated auxiliary trip uses order code 3VA9608-0BB25 — order that separately if you need a spare release module.