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

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.