Littelfuse CP-5-460 Voltage Monitor Product Description

The CP5 Series are undercurrent monitors designed to monitor one leg of a 3-phase system. It is commonly used as a tower monitor on center pivot irrigation systems to detect stalled or jammed towers to prevent over watering.

The CP5 Series has both an adjustable trip level and an adjustable trip delay timer. When the current is sensed, the CP5 Series activates its output relay, thus starting the motor/pump. When the current in the monitored power line falls below the user-selectable trip point, the unit goes through a trip delay timer and then deactivates the output relay if the monitored current does not recover first.

Littelfuse CP-5-460 Voltage Monitor Typical Applications

• Fans
• Compressors
• HVAC
• Heat Pumps
• Well Pumps
• Sump Pumps
• Small Conveyor Motors
• Oil Rigs

Littelfuse CP-5-460 Voltage Monitor Features

• Protects Motor From:
  • Overload or Jammed Impeller
  • Underload or Dry Well
  • Current Unbalance
  • Current Single Phase
  • Reverse Phase
  • Rapid Cycling
• 3-Digit LED Diagnostic Display
• Last Fault Diagnostics
• Automatic or Manual Reset
• Remote Reset Capability
• UL Listed
• CSA Approved
• 5-Year Warranty
• Made in USA

Littelfuse CP-5-460 Voltage Monitor Specifications

Nominal Input Voltage . . . . . . . . . . . . 460 VAC

Frequency . . . . . . . . . . . . . . . . . . . . . 50*/60Hz

Operating Points . . . . . . . . . . . . 0.5-175A (direct) 176-800A (CTs required)

• Trip Level . . . . . . . . . . . 0-5 Amps
• Trip Delay . . . . . . . . . . . . 0-10 minutes
• Restart . . . . . . . . . . . . 1 second

Output Contact Rating

• SPDT . . . . . . . . . . .470VA @ 600VAC Pilot Duty

Terminal Torque . . . . . . . . . . . . . . . . . . . . . 7in.-lbs.

Wire Size . . . . . . . . . . . . . . . . . . . . . 12-18AWG

Safety Marks

Weight . . . . . . . . . . . . . . . . . . . . . . . . 16 oz.

Mounting Method . . . . . . . . . . . #8 screws

*Note: 50Hz will increase all delay timers by 20%

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Littelfuse CP-5-460 Voltage Monitor Resources

Littelfuse CP-5-460 Product Specifications

Littelfuse CP-5-460 Installation Bulletin