What this MCCB is, and what the ratings mean for fit
The Siemens 3VA4195-5ED34-0AA0 is a 3-pole SENTRON molded-case circuit breaker (MCCB) rated for 15 A continuous current (Iu) at 40 °C, with a TM210 thermal-magnetic overcurrent release that provides fixed LI protection — thermal for overload, magnetic for short-circuit. The magnetic trip is fixed at 300 A (li), so it clears hard faults fast without nuisance trips on motor inrush. Breaking capacity is the headline number here: 85 kA at 240 V and 35 kA at 480 V (also 35 kA at 480Y/277 V, 18 kA at 600Y/347 V). That SCCR means it safely interrupts faults up to those levels without cascading upstream — critical for high-fault panels near large transformers or utility feeds. The thermal derating curve matters for panel fit: full 15 A up to 45 °C, then 14 A from 50 °C to 60 °C, and 13 A at 65 °C to 70 °C. If your enclosure runs hot, you're not getting the full 15 A — plan your load accordingly.
Panel integration and physical fit
Dimensions are 76.2 mm wide, 129.4 mm tall, 75.1 mm deep — standard 3-pole MCCB footprint for a 15 A frame. Front IP40 protection keeps dust out of the terminal area; fine for enclosed panel mounting, not for washdown zones. Power loss is 9.8 W maximum at rated current — modest heat to manage in a sealed enclosure, but worth a glance at your thermal budget if the panel is densely packed. Rated for operation from -25 °C to 70 °C, storage from -40 °C to 80 °C. That covers most indoor industrial environments; the storage range is what governs a spare sitting on the shelf.
Lifecycle and sourcing reality
No communication function, no motor drive option, no ground-fault monitoring version on this variant — it's a straight thermal-magnetic MCCB for basic feeder and branch protection. The TM210 release is fixed, not adjustable on the thermal side, so what you see is what you get for overload pickup.