Omron K2CM Motor Relay User Manual

Motor Relay K2CM 923 is a static motor relay that can combine overcurrent, phase loss, reverse phase and other protection elements through switching. It has a compact integrated structure and can detect the operation of the circuit and output relay through the test switch.


Omron K2CM Motor Relay User Manual - cover page
Brand
Omron
Category
Motor
Document type
User Manual
Language
Chinese
Pages
16
File format
PDF
File size
332 KB
Published
10 December, 2011
Updated
28 September, 2023
MD5 checksum
2A6D197416CFC0C776D7E8D0A2EB4358

About this manual

This manual describes the features and protection functions of the Omron K2CM motor relay, including overload, phase‑loss, and reverse‑phase detection. It explains how to select the appropriate model, configure the control supply voltage, and adjust timing settings.

The document also covers installation details such as terminal configuration, wiring diagrams, torque specifications, and recommended maintenance procedures to ensure reliable long‑term operation. This manual is written in Chinese.

What's inside

  • Product Overview
  • Technical Specifications
  • Operation Characteristics
  • Wiring and Connections
  • Internal Block Diagram
  • Phase‑Loss Circuit
  • Reverse‑Phase Circuit
  • Terminal Configuration
  • External Connection Examples
  • Maintenance and Inspection

Specifications

Contact rating (LA)AC120 V/2 A, AC240 V/1 A, AC440 V/0.5 A
Weight780 – 800 g
Operating temperature range-10 °C to +60 °C
Operating humidity range35 %–85 % RH

Frequently asked questions

How can I test the overload and phase‑loss functions?

Use the test switch to operate the circuit and observe the output relay action for overload, phase‑loss, and reverse‑phase detection.

What tightening torque should be applied to the terminal screws?

The terminal screw tightening torque should be set to 0.98 N·m (or 177 N·mm) as specified.

What are the operating temperature limits for the K2CM relay?

The relay is rated for use from –10 °C up to +60 °C.

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