The Siemens 3VA2116-5HL32-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current with an ETU320 electronic trip unit. The 3-pole design is built for line protection in distribution panels. Its 187 kA interrupting capacity at 240 V AC means it can handle high-fault scenarios common in industrial mains without upstream cascading — useful when you're placing it close to a transformer or large motor bank. The IP40 front protection keeps dust and tools out of the breaker face in a standard panel enclosure.
Breaking capacity across voltages
The interrupting rating drops as voltage climbs: 187 kA at 240 V, 121 kA at both 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. At 690 V the breaker is still usable but the fault-current ceiling is low — plan your arc-flash study accordingly. The 800 V rated insulation voltage confirms this MCCB is designed for 690 V systems, not just 480 V.
Thermal performance and derating
The 160 A continuous rating holds flat from 40 °C through 70 °C ambient — no derating needed in a hot panel or next to a transformer. That's unusual for a compact MCCB and simplifies the panel schedule. Max power loss is 25.5 W, so ventilation requirements are modest. Operating range is -25 °C to 70 °C; storage range -40 °C to 80 °C.
Panel fit and dimensions
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep — roughly 4.1 by 7.1 by 3.4 inches. Three-pole footprint matches standard SENTRON 3VA panel cutouts. No undervoltage release, no voltage trigger, no communication function — this is a straightforward line-protection device with the ETU320 trip unit handling adjustable overload and short-circuit curves. The ETU320 is electronic, so coordination studies are easier than with thermal-magnetic units.