The Siemens 3VA1110-6MH36-0AE0 is a 3-pole IEC molded-case circuit breaker from the 3VA1 series, built on a 160 A frame but fitted with a TM120M thermal-magnetic trip unit rated 100 A continuous. The description notes 'starter protection TM120M, AM' and explicitly states 'without overload protection'. This means the TM120M trip provides only short-circuit protection (magnetic trip adjustable Ii=5...15 x In), with no thermal overload element active. It is intended for use upstream of a separate motor starter or soft starter that handles the overload function — common in IEC motor control centers where the breaker acts as a disconnecting means and short-circuit protector, not the overload relay. The clamp connection (box lug) terminal style accepts copper or aluminum conductors up to the rated wire range, typical for panel-mount installations where ring or fork terminals are not used. Four integrated auxiliary switches (HQ) provide status feedback for the open/closed/tripped positions — enough for remote indication and interlocking without adding external switch modules.
Where it fits and lifecycle reality
The 160 A frame means the physical footprint is the same as other 3VA1 frame-160 breakers up to 160 A, so it can be swapped into an existing panel without re-drilling or re-bussing — provided the line and load conductors are sized for 100 A.
Sourcing and procurement posture
Because the lifecycle is current, there is no urgency to buy ahead of a phase-out — but for a critical BOM line, locking in a multi-year blanket order ensures continuity and protects against supply-chain volatility.