The Siemens SENTRON 3VA4130-4ED34-0AA0 is a 3-pole molded-case circuit breaker (MCCB) in the system protection version, carrying a TM210 thermal-magnetic release. It is rated 30 A at 40 °C, with interrupting capacity of 65 kA at 240 V AC and 25 kA at 480 V AC — figures that govern its use as a main or feeder breaker in distribution panels where fault current levels are known.
Interrupting capacity and selectivity
At 240 V the breaker clears 65 kA; at 480 V that drops to 25 kA, and at 600Y/347 V it is 14 kA. These are the numbers a panel designer uses to verify SCCR coordination with upstream gear — the 65 kA figure at 240 V is high enough for most service-entrance applications, while the 25 kA at 480 V still covers typical industrial distribution. The TM210 release provides fixed thermal and magnetic trip settings; there is no trip indicator on this variant, so a visual flag on the handle is the only local indication of a trip event.
Thermal derating and operating range
Current rating is temperature-dependent: 30 A at 40 °C, derating to 29 A at 45–50 °C, 28 A at 55 °C, 27 A at 60–65 °C, and 26 A at 70 °C. The breaker is rated for continuous operation from -25 °C to 70 °C ambient, with storage from -40 °C to 80 °C. Maximum power loss is 9 W, which matters for enclosure thermal calculations when multiple breakers are ganged.
Physical fit and panel integration
Dimensions are 76.2 mm wide, 129.4 mm high, and 75.1 mm deep — a standard 3-pole MCCB footprint that fits most Siemens SENTRON panelboards and distribution blocks. Front protection is IP40, meaning tools and fingers are kept out but the unit is not sealed against moisture. The breaker is rated for 690 V AC and carries UL file SEAB, confirming UL 489 listing for the US market.