The Siemens SENTRON 3VA2116-8JQ46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 160 A continuous current at ambient temperatures from 40 °C up to 70 °C — no derating needed across that band. It is the line protection variant, meaning it protects feeders and distribution circuits, not motor branches. The ETU560 electronic trip unit gives you adjustable long-time delay (0.5 to 20 s) and N-conductor protection configurable from OFF to 100 % of phase current. Breaking capacity is the headline here: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 53 kA at 690 V. That puts it in the high-interrupting class — suitable for large transformer secondaries, main switchboards, or high-fault industrial distribution where a standard MCCB would weld shut.
What the ETU560 trip unit gives you
The ETU560 is an electronic, not thermal-magnetic, overcurrent release. That means you get adjustable long-time pickup and delay (Ir and tr), plus short-time and instantaneous settings — not just a fixed bimetal curve. The N-conductor protection can be switched off or set between 20 % and 100 % of the phase current, which matters for 4-wire distribution where neutral loading varies. Power loss is 19.7 W maximum at rated current — manageable for panel thermal budgeting. Mechanical endurance is 20,000 operations.
Mounts on a standard backplate or mounting plate. The 86 mm depth fits most enclosures with clearance for rear terminals and wiring.