What This Part Is and What It Does
The Siemens 3VA1110-1AA46-0AA0 is a SENTRON switch disconnector in a molded-case circuit breaker (MCCB) design — it provides a visible-break isolation point for a circuit, but without overload or short-circuit protection. It is rated for continuous current of 100 A and is built for 4-pole (3-phase + neutral) switching. Rated insulation voltage is 800 V, with AC operating voltage at 690 V and DC at 600 V. The part carries its full 100 A rating flat across the entire operating temperature range from 40 °C up to 70 °C — no derating needed in a warm panel. Mechanical service life is 15,000 operating cycles typical. Maximum power loss is 38 W. Front protection is IP40; the main circuit connection is via front terminals.
Panel Integration and Mounting
Dimensions are 70 mm depth, 101.6 mm width, and 130 mm height. The MCCB form factor means it snaps onto a DIN rail or mounts via the standard 4-pole MCCB footprint — check the panel cutout against the 101.6 mm width before laying out the gland plate. No auxiliary contacts or releases are fitted as standard (no auxiliary switch, no undervoltage release, no shunt trip). If you need remote signaling or undervoltage protection, an optional motor drive can be added via the product extension slot.