The Siemens 3VA1110-1AA36-0AF0 is a SENTRON 3VA1 IEC-frame 160 switch disconnector — a 3-pole, 100 A rated continuous current (Iu) device built in an MCCB-style housing but without overload or short-circuit protection elements inside. It functions purely as a manual load-break switch for isolation and disconnection, rated for AC 50/60 Hz up to 690 V and DC up to 500 V. The front terminal connection and 70 mm depth suit standard panel layouts where a compact disconnect point is needed between a supply and downstream protection.
The 100 A continuous rating (Iu) sets the maximum uninterrupted current the switch can carry without exceeding a 38 W power loss at full load. Short-time withstand is 2 kA for 1 s and also 2 kA for 0.5 s — this is the fault current the disconnector can hold closed during a downstream short until an upstream breaker clears it. The 15 000 latching-endurance cycles indicate mechanical life; electrical life will be lower under load-break duty. The trip alarm switch changes state only when the disconnector is tripped (by the optional shunt or undervoltage release, not included here), so it can signal a fault condition separately from the main auxiliary. The optional motor drive (product extension) allows remote motorized operation if needed later.
Where it sits in the panel
The 3VA1 frame is designed for DIN-rail or panel-mount installation in a distribution board or control cabinet. At 76.2 mm wide (roughly 4.5 module spaces on a 17.5 mm DIN grid) and 130 mm tall, it fits alongside standard SENTRON MCBs and other 3VA breakers. The front terminal connection keeps wiring accessible from the front, simplifying gland-plate layout. The IP40 front rating means the disconnector can be mounted behind a door or cover; no additional front sealing is required for basic splash protection.