The Phoenix Contact CB TM2 2A SFB P is a two-pole thermomagnetic device circuit breaker engineered for selective protection of DC control and auxiliary circuits in industrial automation, machine building, and panel building applications. Its compact, plug-in design enables quick installation on the matching base element while providing dependable branch protection in demanding environments.

Combining thermal overload and magnetic short-circuit release, the TM S-type mechanism with SFB trip curve ensures ultra-fast fault clearance without nuisance tripping of upstream supplies. The unit is rated up to 80 V DC in accordance with IEC 60934, offers two changeover contacts for remote status indication (auxiliary circuit up to 277 V AC at 0.5 A), and achieves a short-circuit breaking capacity of 1000 A AC at 277 V AC. Robust insulation strength of 3 kV AC and 2.5 kV impulse withstand, Pollution Degree 2, IP30 in operation, and a -30 to 60 °C ambient range underline its suitability for modern control cabinets.

Whether in new builds or retrofits, this breaker supports selective coordination and clear diagnostics to keep machines running and downtime low, and it delivers this performance with the added assurance of a 1-year warranty from the date of purchase.

• Brand: Phoenix Contact
• Series: CB TM
• Model: CB TM2 2A SFB P (2800870)
• Poles: 2
• Trip characteristic: SFB, thermomagnetic S-type, free trip
• Rated voltage: 80 V DC (IEC 60934)
• Short-circuit breaking capacity: 1000 A AC at 277 V AC
• Connection type: Plug-in for base element