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CT8 Thermal Overload Relays

 
  • Thermal Overload Protection For Connecting To CA7 Series Contactor (direct or separate mounting)
Thermal Overload Protection For Connecting To CA7 Series Contactor (direct or separate mounting)

Direct-Mount Thermal Overload Protection For Connecting To CA8 Series Contactors

 
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CT8
  • Overview
  • Product Comparison
  • Specifications
  • Documentation
  • Tips/FAQ

Overview

The CT8 is an economical thermal overload relay that includes standard features like "Differential tripping", Automatic/Manual reset modes, and isolated alarm circuit contacts.

The consistent high quality of Sprecher + Schuh thermal overload relays is ensured by a complex current calibration procedure performed after each unit is at full operating temperature. Calibration is performed at the largest and smallest current the overload can handle. The accurate time/current characteristic curve obtained in this manner guarantees reliable motor protection every time.

Overload Protection

CEP7
 
CT7N
 
CT8
 
CEP9

Product Comparison

CT8 Thermal Bimetallic
  • Ambient temperature compensation
  • Rated for DC and variable frequency drive applications up to 400 Hz
  • Optional remote reset solenoid
CEP7 Solid State Overloads
  • Current measurement based protection
  • Low energy consumption
  • Adaptive-mount expansion modules provide adjustable levels of protection
CEP9 Advanced Electronic Relay
  • Provides critical motor protection functions
  • Communication and diagnostics provide detailed logs and control from relay to motor
  • Can simplify control architecture

Specifications

  • Standard motor protection for AC and DC motors
  • Overload protection Trip Class 10A
  • Auxiliary switch (1 NO and 1 NC)
  • Phase loss sensitivity
  • Manual/Auto reset button
  • Test release
  • Stop button
  • Trip indicator

Looking for more?

Find selection guidance, technical information, wiring diagrams, and dimension drawings in the E-Catalog.

E-Catalog
 

Documentation

 
Resource Resource Type Publication Number
Choosing the Right Overload Relay Brochure F-MotorProtection
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