Siemens SENTRON 3VA1096-4ED32-0AF0 — MCCB, 16 A, 121 kA at 240 V
The Siemens SENTRON 3VA1096-4ED32-0AF0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection. It carries a rated continuous current Iu of 16 A and a rated insulation voltage Ui of 800 V. The overcurrent release is a TM210 thermal-magnetic type, adjustable for time-delay response up to 1 second at the tr max setting. Breaking capacity is 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — figures that cover most industrial distribution panels and motor control centers. The 121 kA at 240 V means this MCCB can safely interrupt a fault current up to that level without upstream cascading, which is relevant for high-fault-capacity service-entrance or sub-distribution applications. Thermal derating is documented across the operating range: full 16 A up to 50 °C, then linearly down to 14.4 A at 70 °C. The operating temperature spans -25 °C to 70 °C, with storage from -40 °C to 80 °C. A trip indicator is fitted, and the auxiliary contact configuration is 1 auxiliary switch plus 1 trip alarm switch (HQ type).
Panel Integration and Mounting
Dimensions are 130 mm height, 76.2 mm width, and 70 mm depth. The front face carries an IP40 protection rating, suitable for standard enclosure mounting with a gland plate or cover. The 3-pole footprint matches the SENTRON 3VA family panel cutout, so a panel originally specified for a similar 3VA frame can accept this unit without rewiring the bus bars or modifying the DIN-rail mounting base.