What this 160 A MCCB delivers in the panel
The Siemens 3VA1116-6GF46-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated at a continuous 160 A across four poles, carrying a TM240 thermal-magnetic release for line protection. It's built for main feeder or large subfeed duty in distribution panels where you need a full 160 A frame — no derating down to a smaller continuous rating. The interrupting capacity sits at 220 kA at 240 V, 154 kA at 415 V, and still holds 17 kA at 690 V, so it handles high-fault scenarios without cascading upstream.
Thermal derating and operating limits
This breaker carries its full 160 A up to 50 °C ambient. Above that, it derates: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. The operating temperature range is -25 °C to 70 °C, with storage from -40 °C to 80 °C. Maximum power loss is 38 W. If you're packing this into a high-density enclosure, that thermal curve and loss figure tell you where the ventilation needs to be.
Fit and panel integration
Dimensions are 101.6 mm wide, 130 mm tall, 70 mm deep — a 4-inch-wide footprint that matches the standard SENTRON 3VA frame. The front face carries IP40 protection, so it's fine for general indoor panel use but not washdown. No undervoltage release, no trip indicator, no communication module on this variant — it's a straightforward thermal-magnetic line-protection breaker. Rated insulation voltage is 800 V.