UL Listed 489 breakers

UL 489 Listed for branch-circuit protection

The TMC 8 series — Phoenix Contact’s line of UL Listed 489 breakers — has been designed for a wide range of applications.

The TMC 8 series is Phoenix Contact’s line of UL Listed 489 breakers and is ideal for a wide array of applications, from machine building, oil and gas, and water/wastewater, to energy, transportation, and telecom. With multi-pole options, our breakers can satisfy a variety of needs while safely protecting your equipment and systems from overcurrent disturbances.


Trip-free design
With safety a key priority, our innovative breakers incorporate this feature to open during an overcurrent event, even if the switch is held closed.

Snap-action mechanism
Everyone wants a product with an exceptional life span. This design inherently creates a longer-lasting  product by eliminating contact welding and reducing contact wear and pitting.

Flexibility in innovation
Not only do the TMC 8 series breakers come in 1-, 2-, and 3-pole options, each one also comes in B-, C-, and D-curve options to ensure the proper trip speed based on your end devices. There are also a variety of accessories to further increase your system’s functionality including an auxiliary contact, alarm contact, and shunt trip. Our breakers can also be bussed together utilizing our cuttable UL Listed busbar.



1-, 2- and 3-pole  circuit breaker

  • UL 489 Listed
  • 1-63 A (1-32 A for 3-pole)
  • Up to 277/480 V AC (125 V DC)
  • 10 kA interrupt rating
  • B-, C-, and D-trip curves



Aux contact

  • Notification of breaker actuator

Alarm contact

  • Overcurrent trip indication
  • Not activated by manual operation of actuator

Shunt trip

  • Allows remote trip
  • Indicates if tripped remotely or via an overcurrent event


Cuttable busbar

Multi-pole, cuttable busbars

  • UL 508 Listed
  • Cut-and-cap installation
  • 80 A rating

Learn more about our complete line of UL 489 Listed TMC 8 circuit breakers


8240 Parkhill Drive
Milton, Ontario L9T 5V7

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