What the ratings mean for fit
The Siemens SENTRON 3VA2010-5HN36-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling, which simplifies panel thermal budgeting in a crowded enclosure. The insulation voltage is rated 800 V, so it sits comfortably in 400 V and 480 V distribution panels with headroom for fault-clearing coordination. Breaking capacity is the headline: 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. For a 100 A frame, those numbers mean this breaker can sit upstream of a high-fault panel without cascading — it clears a bolted fault at the main switchboard level where available fault current is highest. At 690 V the 3 kA rating is a secondary winding protection figure; the real duty is on the 400–480 V industrial range.
Lifecycle and sourcing reality
The 3VA2010-5HN36-0AD0 carries three auxiliary switches (HQ design) factory-fitted, which saves a separate order line and panel wiring step for status feedback to a PLC or annunciator. The basic switch variant is order code 3VA20105HN360AA0, so if the panel drawing references that bare breaker the 5HN36-0AD0 adds the aux contacts without a separate kit.
Panel integration and mounting
Dimensions are 181 mm height, 105 mm width, 86 mm depth — a 3-pole MCCB footprint that fits standard Siemens SENTRON mounting plates and busbar systems. The depth at 86 mm (3.39 in) leaves clearance for a standard 200 mm deep enclosure with wiring gutters. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C, so it handles unheated electrical rooms and outdoor kiosks. Maximum power loss is 13.5 W — negligible for thermal calculations in a multi-breaker panel, but worth noting if the breaker is in a sealed, high-density switchboard with other heat sources.