Line protection MCCB with TM240 release and undervoltage release
The Siemens SENTRON 3VA1116-6EF32-0DA0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current at 40 °C, designed for line protection per the product designation. It carries a TM240 thermal-magnetic overcurrent release — the thermal element handles overloads, the magnetic element handles short-circuits, with the trip threshold set at 240 A (1.5× the continuous rating). The unit includes a factory-installed undervoltage release (UVR) that trips the breaker when control voltage drops below the dropout threshold, per the design of the auxiliary release.
Breaking capacity across voltage levels
Breaking capacity varies with system voltage: 220 kA at 240 V AC, 154 kA at 415 V AC, 75.6 kA at 440 V AC, and 17 kA at both 500 V and 690 V AC. At 240 V this is a high-interrupting rating suitable for transformer secondary or large bus feeds where fault current is substantial. At 690 V the 17 kA figure still covers most industrial motor branch circuits — verify against the available fault current at the point of installation.
Thermal derating and ambient limits
Continuous current holds at 160 A from 40 °C through 50 °C ambient. Above that, derating applies: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. The operating ambient range is -25 °C to +70 °C; storage range is -40 °C to +80 °C. Maximum power loss at rated load is 40.5 W — factor that into enclosure heat dissipation calculations, particularly in sealed or high-density panels.
Physical footprint and panel fit
Dimensions: 130 mm height, 76.2 mm width (3 inches), 70 mm depth. The 3-inch width is standard for a 3-pole MCCB in this frame size — it occupies one 3-pole mounting position on a DIN rail or panel-mount adapter. The 70 mm depth leaves clearance for rear-access wiring in a standard 200 mm deep enclosure. Rated insulation voltage is 800 V, which covers 480/277 V and 600 V systems with margin.
Lifecycle and sourcing
The lifecycle stage is listed as current production. This is an active catalog item in the Siemens SENTRON 3VA platform. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.