The Siemens 3VA2110-6HN36-0AH0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current, with an ETU350 electronic trip unit configured for line protection. This 3-pole unit delivers 242 kA interrupting capacity at 240 V and 187 kA at 415 V, with a minimum of 5 kA at 690 V — covering most industrial distribution panels and motor control center infeeds.
Ratings and what they mean for the panel
The 100 A rating holds flat from 40 °C through 50 °C, then derates linearly to 85 A at 70 °C (–). For a panel that runs warm — say a packed MCC bucket at 55 °C — the usable current drops to 96.25 A, so the breaker should be upsized if the load is continuous at the full 100 A. The 242 kA at 240 V and 187 kA at 415 V mean this MCCB can be installed at high-fault locations like a transformer secondary or generator main without requiring upstream current-limiting fuses. The 5 kA at 690 V is the tail; at that voltage the breaker is still usable but the fault-current limitation is modest. The ETU350 electronic trip unit provides adjustable long-time, short-time, and instantaneous pickup settings, plus ground-fault alarm or trip when paired with the right accessory. This makes the breaker suitable for selective coordination studies — you can set the short-time delay to ride through downstream faults without nuisance tripping the main.
Physical fit and integration
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep. The width matches the standard 3-pole MCCB footprint for Siemens 3VA frames; it mounts on a DIN rail or directly to a panel backplate with the supplied hardware. IP40 on the front means the breaker face is protected against tools and solid objects over 1 mm — fine for a closed panel, but not for washdown areas. The auxiliary contact block is factory-fitted as 2 auxiliary switches plus 1 trip alarm switch HQ, so you get status feedback and a separate alarm contact without adding a module.
Comparison note against a sibling
The closest functional sibling is the 3VA2110-7HK42-0AA0, which shares the same 100 A frame and 3-pole count but carries a different trip unit configuration. The 3VA2110-6HN36-0AH0 includes the HQ auxiliary contact block (2 aux + 1 trip alarm) as standard.