Carling K-Series Breaker

April 19, 2023

K-Series Hydraulic-Magnetic Circuit Breaker

The K-Series is a single-pole hydraulic-magnetic circuit breaker that can be configured for AC or DC applications with a maximum voltage rating of 65 or 80 VDC or 250 VAC. The micro-size circuit breaker is available with printed circuit board assembly (PCBA), push-on tab, or screw terminals as well as instantaneous, short, and medium time-delay options. The K-Series can also be configured with a current rating from 1 to 30 amperes.

As a temperature-stable, hydraulic-magnetic circuit breaker, the K-Series is appreciably unaffected by ambient temperature, so there is no need for a fan to keep it cool, which makes it an ideal solution for today’s confined and crowded Datacom and Telecom rack systems and 5G devices.

Easy to install with just a single screw, the K-Series hydraulic-magnetic circuit breaker is available with a hook mounting option for applications in harsh environments where protection against vibration is needed.


  • Agency Approvals: UL 489A, UL 1077, CSA 22.2 No. 235, TUV IEC/EN 60934, CCC GB17701
  • Number of Poles: 1 pole
  • Available Delays: Instant, Short, Medium
  • Maximum Current and Voltage Ratings: 30 amps max, 80VDC max, 250 VAC max
  • Maximum Interrupting Capacity: 1,000 amps
  • Available Circuits: Series
  • Actuator Style Handle: actuator
  • Terminal Options: PCBA soldering terminal (0.197) Push-On 0.250 Tab (Q.C) Screw Terminal 8-32 (Bus Type)
  • Mounting Method: Front Panel
  • Value Added: Micro-Sized and Versatile Design PC Terminals available

Download the datasheet for more information