Eaton Electrical
ECSTD Series CurrentWatch Current Switches

Key Features

  • Adjustable Start-Up/Delay Timer—Field adjustable from 0–15 seconds to eliminate nuisance alarms due to start-up inrush or temporary overcurrent conditions
  • Choice of NO/NC AC or Universal Outputs— Contact ratings of 1.0A at 240 Vac or universal outputs of 0.15A at 240 Vac/dc (NO models) and 0.2A at 135 Vac/dc (NC models) for use with most standard motor control systems
  • Improved Ease of Installation and Use— Self-powered, split-core models simplify installation, 1.0A AC rating eliminates need for time delay relay, and status LED provides visual indication of setpoint trip and contact action
  • Industrial Grade Performance—Constant hysteresis and linear response characteristics enhance setpoint accuracy 
  • Agency Approved—UL Listed, CE pending

Applications

  • Motor Protection— Serves as an electronic proof-of-operation; detects current draw changes in motors when they encounter problems such as pumps running dry or pending bearing failure; non-intrusive and less expensive to install than differential pressure flow sensors or thermal switches; much quicker response time than Class 10 overload relays
  • High Inrush or Temporary Overload Current—Adjustable startup/ delay timer allows 0–15 second delay to eliminate nuisance trips from high inrush or short overload conditions

Standards and Certifications

  • UL Listed
  • cUL Listed
  • CE (Pending)
  • UL 508 Industrial Control Equipment (USA and Canada)

Click to Enlarge

The CurrentWatch ECSTD Series from Eaton’s electrical sector is a family of high performance current operated switches with field adjustable time delay to help minimize nuisance trips during start-up and operation. Designed for motor status applications where setpoint accuracy and repeatability are critical, the ECSTD Series offers a linear setpoint characteristic and constant hysteresis. Standard features include self-powering, jumper-selectable ranges and a choice of outputs and housing styles.

For typical applications of the CurrentWatch ECSTD Series, see listing on this page.

Catalogs