Carling Technologies MS IP68 Hydraulic-Magnetic Circuit Breakers

Carling Technologies MS IP68 Hydraulic-Magnetic Circuit Breakers are designed/tested to operate in harsh environments and are suited for COTS (commercial off-the-shelf) military applications. A space-saving envelope meets IP68 requirements and features a durable metal and sealed mounting bushing with MIL-PRF-39019F ingress protection when mounted in a panel. The cost-effective design complies with the requirements of MIL-PRF-55629 and MIL-STD 202. The MS Circuit Breakers are compact, reliable, and ideal for crucial communication equipment and other mission-critical components where shock, vibration, moisture resistance, salt spray, and thermal shock are a consideration.


  • Sealed toggle actuator
  • 1 to 3 poles
  • Optional auxiliary switch
  • Materials non-nutrient to fungus growth
  • Compact design
  • Eco-friendly
  • 65VDC, 240VAC, and 120/240VAC voltage ratings
  • 0.02A to 30A current rating range
  • 100MΩ minimum insulation resistance at 500VDC
  • -40°C to +85°C operating temperature range
  • IP68, MIL-PRF-39019F ingress protection
  • MIL-PRF-55629 and MIL-STD 202 compliant
  • TUV certified


  • COTS military
  • Communication equipment
  • Off-highway equipment
  • Construction, mining, and agriculture
  • Generators and power supplies
  • Harsh environments


Published: 2015-11-12 | Updated: 2022-03-11