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Transparent rectangular overload relay with front-mounted adjustment dial and terminal block connections

Dayton

Dayton 6ECA0 Overload Relay 48-65 A Trip Class 10

SKU CH-K0R0-FYJ3B

Thermal overload relay protects motors from 48 A to 65 A with Trip Class 10 and auto or manual reset

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Trip Class 10 enables fast motor protection
  • Adjustable 48 to 65 A range fits varied loads
  • 1NO/1NC auxiliary contacts simplify control wiring
  • Direct contactor mounting saves panel space
  • UL listed and CSA certified for code compliance

Application and Purpose

The Dayton 6ECA0 is a thermal overload relay designed for industrial motor protection. It suits maintenance engineers and panel builders who need reliable overload detection for three-phase circuits. The device mounts directly to a contactor and provides both automatic and manual reset options. It is not intended for buyers who need electronic overload features or communication capabilities.

Trip Class and Setting Range

Trip Class 10 defines the maximum tripping time under locked-rotor conditions, limiting how long a motor can sustain high inrush current before protection operates. The adjustable setting spans 48 A minimum to 65 A maximum, so the relay cannot protect motors whose full-load current falls outside this band. Installers must verify the motor nameplate value lies within these limits.

Key Selection Parameter

The 48 A to 65 A adjustment range is the single specification that determines whether this relay matches the application. If the motor’s rated current is below 48 A or above 65 A, a different overload device must be chosen.

Highlights

  • Trip Class 10 enables fast motor protection
  • Adjustable 48 to 65 A range fits varied loads
  • 1NO/1NC auxiliary contacts simplify control wiring
  • Direct contactor mounting saves panel space
  • UL listed and CSA certified for code compliance

Specifications

BrandDAYTON
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

Should I select the 48 A or 65 A current setting for my motor?

Choose a setting that matches the motor's full-load current; the relay adjusts continuously between 48 A and 65 A so you can dial in the exact value.

What does Trip Class 10 mean once the relay is installed?

Trip Class 10 indicates the relay will trip within ten seconds at six times the set current, providing fast thermal protection for standard motors.

Does the IEC 60947-4-1 standard limit the contactor I can mount this on?

The relay mounts directly to IEC-style contactors; IEC 60947-4-1 defines the performance requirements, not a specific contactor model, so any compliant contactor of suitable rating will work.

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