The Siemens 3VA1096-3ED32-0CC0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. It carries a 16 A rated current at 40 °C, holds that rating through 55 °C, then derates to 15 A at 60 °C and above — per the datasheet, the thermal curve is flat across the typical panel ambient range, so no headroom adjustment needed unless the enclosure runs hot.
Breaking capacity across voltages
This 3-pole MCCB delivers 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. The rated insulation voltage is 800 V. For a 16 A frame, those interrupting ratings cover most industrial service-entrance and feeder applications — the 7.5 kA at 690 V is the limiting case if the supply transformer is close-coupled at that voltage.
Integrated auxiliaries and release
Factory-fitted with an undervoltage release (UVR) and two HQ auxiliary switches. The UVR trips the breaker when control voltage drops below the dropout threshold — standard for safety circuits where loss of control power must open the main contacts. The two auxiliary switches provide status feedback (open/closed) to a PLC or indication lamp without needing a separate accessory module.
Physical fit and panel integration
Dimensions: 130 mm height, 76.2 mm width (3 inches), 70 mm depth. The 3-pole width is standard for a 16 A frame MCCB — fits a 3-inch cutout in a panel or enclosure gland plate. No communication module, no ground-fault monitoring; this is a straightforward line-protection breaker with a UVR and aux switches, intended for hardwired control circuits.