MCCB for panel protection — 100 A, 3-pole, TM210 release
The Siemens 3VA1010-3ED36-0BA0 is a SENTRON molded case circuit breaker (MCCB) in the 3VA platform, sized for line protection in distribution panels. Rated continuous current Iu is 100 A across three poles, with a TM210 thermal-magnetic overcurrent release handling the trip curve. Breaking capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V — covering most LV fault scenarios without cascading upstream. The 800 V rated insulation voltage (Ui) gives headroom for 690 V line-to-line systems. Current rating holds at 100 A up to 50 °C ambient, then derates linearly to 90 A at 70 °C. The 15 000 latching endurance cycles suit frequent-switching applications like motor control centers or capacitor bank switching.
Mounting and integration — 76.2 mm wide, IP40 front
Width at 76.2 mm (3-pole) fits standard MCCB panel cutouts. Depth 70 mm, height 130 mm — check enclosure depth before committing; the 70 mm depth is the body, not including handle throw. IP40 on the front face protects against tool entry; the back and sides are unrated, so panel clearance around live busbars is on the installer. No auxiliary contact version fitted as standard. An undervoltage release (UVR) is integrated — design 3VA9608-0BB11 is the trip unit that interfaces with the UVR coil. No communication function, no voltage trigger, no phase failure detection on this variant.
Selectivity and coordination notes
For selectivity studies: the 75.6 kA breaking at 240 V and 52.5 kA at 415 V allow this MCCB to serve as a main or feeder breaker upstream of smaller MCBs. The TM210 release is thermal-magnetic — fixed thermal pickup, fixed magnetic trip at 10× In (typical for TM releases). No electronic adjustment, so coordination is curve-based, not programmable. Operating temperature range -25 °C to 70 °C covers most indoor panel environments. Storage range -40 °C to 80 °C. Undervoltage release present — if the control voltage drops below the dropout threshold, the breaker trips open; useful for emergency-stop circuits or undervoltage protection on motor feeders.