The Siemens SENTRON 3VA1163-1AA36-0CH0 is a 3-pole switch disconnector in MCCB design, rated at 63 A continuously from 40 °C through 70 °C ambient — no derating needed across that span. It is built on the IEC frame 160 platform and ships without overload or short-circuit protection elements, so it functions purely as a load-break disconnect for isolation and switching duty.
Undervoltage Release and Auxiliary Switching
Mechanical Life and Power Loss
Typical mechanical service life is 15,000 operating cycles — adequate for isolation duty where the disconnect is operated a few times per shift, not for high-frequency motor starting. Maximum power loss is 38 W at rated current, which factors into enclosure thermal calculations if multiple units are ganged in a small cabinet.
The mechanical service life is 15,000 cycles typical.