The Siemens SENTRON 3VA1110-1AA32-0DH0 is a 3-pole switch disconnector in MCCB design, rated at 100 A continuously across the full 40 °C to 70 °C ambient range — no derating needed up to the enclosure's thermal limit. It handles 690 V AC or 500 V DC operating voltage, making it suitable for motor feeder isolation, panel main switches, and load-break applications where overload or short-circuit protection is handled upstream or downstream. Built into the IEC frame 160 footprint, it measures 130 mm high, 76.2 mm wide, and 70 mm deep — a compact 3-pole block that fits standard panel layouts with front-terminal busbar connections for the main circuit.
Integrated auxiliary and release options
This variant ships with an undervoltage release (UVR) rated 208-230 V AC 50/60 Hz, plus 2 HQ auxiliary switches and 1 HQ trip alarm switch — providing three CO contacts total for status feedback to a PLC or indication panel.