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Industrial Current Sensors

Industrial power conversion systems demand precise, reliable current measurement to maximize efficiency and protect critical equipment. Littelfuse industrial current sensors serve a broad range of applications: static converters for dc motor drives, solar inverters, ac variable speed drives, servo motor drives, uninterruptible power supplies, and switched-mode power supplies. To meet the diverse performance and packaging requirements of these applications, Littelfuse offers industrial current sensors across three core technologies.
  • Closed Loop, Closed Loop Fluxgate, and Open Loop Hall Effect technologies
  • Single +5V supply (PCB mount); +12V or +24V (standalone CAN)
  • Voltage or CAN digital output options
  • PCB through-hole and standalone busbar-mount packages
  • Measuring ranges from ±20A to ±1500A
  • Frequency bandwidth up to 300kHz
  • Over Current Detection (OCD) output on closed loop devices
  • Operating temperature range: -40°C to +105°C
  • Reinforced isolation up to 4.3kV AC; creepage/clearance up to 12.2mm
  • RoHS compliant; CE marked
  • High accuracy with low offset across full operating temperature range
  • Very small package size enables space-constrained PCB designs
  • Easy PCB mounting via automated handling
  • Integrated current jumpers eliminate external busbar routing (CC1P031N)
  • CAN digital output simplifies system integration in energy storage applications
  • Short response time for fast fault detection and control loop performance
  • High immunity to external electromagnetic interference
  • Wide measuring range supports overload and fault current visibility

Industrial Current Sensors Applications

Highlights Section

  • AC variable speed drives and servo motor drives
  • Solar inverters and DC-DC converters
  • Uninterruptible power supplies (UPS)
  • Switched-mode power supplies (SMPS)
  • Static converters for DC motor drives
  • Battery management and energy storage systems
  • Power supplies for welding applications
  • Home appliances and shunt replacement solutions