Product Name: PTCB TM circuit breaker

Manufacturer: Phoenix Contact

Product Category: Electronic Components

Supporting Documentation (if available)

Phoenix Contact introduces the PTCB TM, the smallest pluggable thermal-magnetic circuit breakers on the market. Measuring just 8.2 millimeters wide, the individual circuit breakers feature both protection and signaling in a single module. The narrow design saves up to 65% space compared with other thermal-magnetic circuit breakers.

The thermal-magnetic circuit breakers have been specially developed for industrial applications with high inrush currents. The circuit breakers are available in finely graduated nominal currents from 0.5 A to 16 A and cover a wide range of applications with the characteristic trip curves F2 and M1. These applications range from sensitive electronic components to power-intensive loads such as motors and transformers.

The PTCB TM features alignable current monitoring with an adjustable signaling threshold, providing local and remote visualization of the load status. Digital outputs make it easy to integrate with a PLC to view the status remotely. A tilting lever clearly shows the switching status, even when the power is off. This reduces required training and minimizes operating errors.

The entire PTCB TM series can be bridged to Phoenix Contact’s CLIPLINE complete terminal block range for intuitive integration into existing applications. This makes wiring faster and easier. Plus, by isolating problematic circuits, PTCB TM ensures the rest of the system stays operational, boosting reliability and minimizing costly downtime.

PTCB TM circuit breakers provide a clear status indication directly on the device or via remote signaling. For advanced monitoring, add the optional Current Monitoring Unit (CMU). It displays real-time load status and offers remote signaling with no software or firmware required.

Thermal-magnetic circuit breakers are essential for device circuit protection in every electrical panel. Adding a UL 1077 circuit breaker is a simple way to enhance system safety and reliability while complementing other Phoenix Contact solutions.
PTCB TM circuit breakers are designed for use in industrial and manufacturing environments where reliable current protection is needed. Some common applications include:
• Machine and control panels: Provides reliable protection for individual devices and circuits in machinery and control cabinets
• Data centers and ICT systems: Offers instant and time-delayed overcurrent protection to safeguard sensitive IT equipment from electrical faults
• Demanding loads: Thermal-magnetic characteristics (F2 and M1 curves) handle high inrush currents from motors, valves, transformers, and frequency converters without nuisance tripping
• Infrastructure: Ensures operational safety in water/wastewater treatment plants, rail systems, and transportation networks
• Process industries: Designed for harsh environments, including marine, offshore, mining, and general process automation
• Power and energy: Protects equipment in solar and wind power systems, battery storage, and power transmission/distribution
• Manufacturing and automation: Supports automotive production lines and automated guided vehicles (AGVs)