Switch disconnector for isolation and switching duty
The Siemens SENTRON 3VA1116-1AA42-0JC0 is a 4-pole switch disconnector in MCCB-style housing, rated 160 A continuously from 40 °C up to 50 °C, with a slight thermal derating to 150 A at 70 °C. It is designed for main circuit isolation and switching without overload or short-circuit protection — the shunt trip (STL) coil, rated 110-127 V DC/AC 50/60 Hz, provides remote tripping capability. Two built-in HQ auxiliary contacts (1 CO each) give status feedback to a PLC or indication lamp. Rated insulation voltage is 800 V, with AC operating voltage up to 690 V and DC up to 600 V. The front face carries IP40 protection — suitable for enclosed panel mounting where no water jets are present. Busbar connection on the front terminals matches standard SENTRON panel layouts.
Integration and mounting
The 3VA1116-1AA42-0JC0 occupies a 101.6 mm wide, 130 mm tall, 70 mm deep footprint in the panel. It is designed for busbar connection on the front terminals, typical of SENTRON distribution boards. The optional motor drive (listed as optional extension) allows remote motorized switching. Mechanical service life is rated 15,000 operating cycles typical.