Overview of the thermal-magnetic circuit breaker product ranges (CB TM1, UT 6)

Thermal-magnetic device circuit breakers

Thermal-magnetic circuit breakers feature a thermal tripping mechanism as well as a magnetic tripping mechanism. This means that the protective devices trip faster in the event of a short circuit compared to thermal fuses. With their various characteristic curves, the device circuit breakers also satisfy the requirements for long cable paths. They therefore provide ideal protection against overload and short-circuit currents.

Your advantages

  • Maximum overcurrent protection over long cable paths, thanks to SFB tripping characteristic
  • Integration in remote signaling concepts, thanks to integrated changeover contact
  • Reduced installation costs, due to bridgeable device circuit breakers (in the base element)
  • Protection of 230/240 V AC control voltages, thanks to the M1 characteristic curve
  • Thermal-magnetic device circuit breakers are a part of the COMPLETE line system

New products

PTCB TM systemic device circuit breakers with alignable current monitoring on a DIN rail
CAPAROC circuit breaker sets

Systemic device circuit breakers

Reliable protection, easy handling

With an overall width of 8 mm, the new PTCB TM product family creates more space in the control cabinet. It is also ideal for higher currents and can be bridged to the CLIPLINE complete range. Through electrical isolation and easy current monitoring, it provides reliable protection.

Main features

  • Reliable startup of loads with high startup currents
  • Electrical isolation in the event of an error
  • Reliable with a resilient design
  • Large selection of rated current versions in increments from 0.5 to 16 A
  • Protective plug with M1 or F2 characteristic curve
  • Operating voltage: 10 V DC … 56 V DC, 24 V AC … 277 V AC

Your Advantages

  • More space in the control cabinet: protection and signaling in an overall width of just 8 mm
  • Simple application setup with the capability of bridging to the CLIPLINE complete terminal block range
  • Transparency regarding utilization and status with practical current monitoring and remote signaling
  • Easy handling from commissioning right through to maintenance due to clear functionality and switching state at all times

CAPAROC circuit breaker system

Sets for getting started quickly

The preassembled CAPAROC circuit breaker sets are quick to install. You can choose between simple status signals or an IO-Link interface for comprehensive diagnostics. They protect up to eight circuits against the effects of overloads and short circuits.

Main features

  • Supply voltage: 12 V DC ... 24 V DC
  • IO-Link interface
  • Group message, reset, warning at I >80%
  • Push-in connections: 16 mm² / protected output: 4 mm²
  • 8 preassembled channels per system
  • Total current monitoring ≤45 A
  • Test pick-off per connection
  • Power display with nominal current locking

Your Advantages

  • The customizable standard with individual expansion options
  • Particularly easy operation for everyone with preconfigured sets for direct use
  • Protection of eight circuits without additional installation effort
  • Evaluation options: from simple signals to comprehensive diagnostics with IO-Link

PTCB TM in the system with power supply, monitoring, device protection, and distribution

Compact. Systematic. Safe. PTCB TM

The PTCB TM product family offers a highly compact, thermal-magnetic circuit breaker system. The individual circuit breakers have an overall width of just 8 mm and feature integrated signaling. The base elements can be bridged to the CLIPLINE system. The tool-free Push-in connections simplify wiring. Other highlights include current monitoring, remote signaling options, and intuitive handling. This makes PTCB TM ideal for modern control cabinet solutions.

Thermal-magnetic device circuit breakers with different characteristic curves mounted on a DIN rail

Robust. Modular. Versatile. CB TM

The TM CB series thermal-magnetic device circuit breakers provide reliable protection against overload and short circuit. With their pluggable design, various tripping characteristics (e.g., M1, SFB), and integrated changeover contact, they are ideal for modular applications, even with long cable paths.

UT 6-TMC thermal-magnetic device circuit breakers mounted on a DIN rail

One-piece. Clear. Powerful. UT 6-TMC

The UT 6-TMC thermal-magnetic device circuit breakers provide reliable protection against overload and short circuit in a one-piece, easy-to-install design. With a clearly defined characteristic curve, the series focuses on proven applications. Ideal for modular systems with high availability and easy handling.

CB TM circuit breakers feature a two-piece design and can be individually adjusted with the protective plug

CB TM thermal-magnetic device circuit breakers

Thermal-magnetic device circuit breakers Function and design

Thermal-magnetic device circuit breakers are tripped both thermally and magnetically. The two systems, bimetal and solenoid, operate independently of one another.

This means that in the event of a short circuit, the thermal-magnetic device circuit breakers trip more quickly than thermal device circuit breakers.

As a rule, in the event of a short circuit, the tripping mechanism is actuated within 3 to 5 ms.

Use device circuit breakers with optimized SFB (Selective Fuse Breaking) characteristic curve to implement longer cable paths in your system. In conjunction with QUINT POWER power supplies from Phoenix Contact, you can achieve maximum protection for your cables and devices. The device circuit breakers can be switched on again at any time.

Our thermal-magnetic device circuit breakers are available in a one-piece and a pluggable design. Choose between screw connection and Push-in connection technology.

Thermal-magnetic circuit breakers in the control cabinet of a machine

Circuit breakers are installed in the control cabinets of a wide range of machines

Areas of application

Thermal-magnetic device circuit breakers are primarily used in information and communication technology as well as in process control. Due to the various tripping characteristics and precise nominal current levels, the device circuit breakers can be used in a wide range of applications.

For example, they are ideal for protecting programmable logic controllers, valves, motors, and frequency converters.