Product Introduction
The Schneider Electric TeSys T LTMR100MFM is a motor management controller developed for industrial motor protection, monitoring, control, and diagnostics.
Unlike a conventional overload relay that primarily focuses on motor protection, the TeSys T system combines motor protection and monitoring with control and communication functions. The LTMR100MFM can acquire motor operating information, process protection and control conditions, and communicate operating or diagnostic information to an automation system through Modbus. 施耐德电气产品信息
The controller supports motors in the 5–100 A range and operates with a 100–240 VAC control voltage. It provides six built-in logic inputs and relay outputs, as well as connections for a motor temperature sensor and ground current sensor. 施耐德电气产品信息
This makes it particularly useful when the motor is part of a larger automated process and the user needs more information than simply whether the motor is running or stopped.
Key Features
1. Motor Management from 5 to 100 A
The LTMR100MFM is designed for motors with a current range of 5–100 A, allowing one controller platform to be used across a relatively wide range of industrial motor applications. 施耐德电气产品信息
2. Modbus Communication
The Modbus communication interface allows motor-related operating information, alarms, diagnostics, and control functions to be exchanged with a supervisory or automation system.
This is useful when motor information needs to be available from a central control cabinet, PLC, HMI, or plant monitoring system rather than only at the motor itself.
3. Integrated Motor Protection and Monitoring
The controller provides functions for:
- Motor current protection
- Current metering and monitoring
- Motor control
- Alarm and trip management
- Diagnostic information
- Motor temperature monitoring
- Ground current monitoring
The TeSys T controller is therefore intended to provide continuous information about motor operating conditions rather than acting only as a basic switching device. 施耐德电气产品信息
4. Six Logic Inputs
The LTMR controller provides six logic inputs for receiving external control or status signals. These inputs can be assigned to functions such as motor start/stop, reset, local/remote control, and other application-specific logic depending on the operating mode. 施耐德电气产品信息
5. Local and Remote Control
Motor control can be handled through the controller's terminal strip, HMI, or communication port. This provides flexibility when the motor needs to be operated locally during commissioning or maintenance while also being controlled remotely as part of an automation system. Schneider Electric
6. Expandable Measurement Functions
When additional measurement information is required, the TeSys T system can be expanded with an optional module to add voltage, power, and energy measurement capabilities. Schneider Electric
Suitable Applications
Industrial Production Equipment
Suitable for motors used in production machinery where protection, operating status, and communication with the plant control system are required.
Pumps
The controller can be used for pump motors where monitoring motor current, detecting abnormal operating conditions, and communicating motor status to a PLC or supervisory system are important.
Fans and Blowers
For industrial ventilation, extraction, and process-air equipment, the LTMR100MFM can provide motor protection and operating information while allowing the motor to be managed through the control system.
Compressors
Suitable for compressor motor applications where motor protection and diagnostic information are important for maintaining process availability.
Conveyors and Material Handling
For conveyor motors and other material-handling equipment, centralized motor status and protection can make it easier to identify abnormal operating conditions and manage multiple motors from a control system.
Critical Process Equipment
The TeSys T system is also designed for applications where motor availability is important and operating conditions need to be monitored continuously. Schneider Electric specifically positions the system for critical processes and harsh industrial environments. Schneider Electric
Technical Highlights & Important Selection Considerations
When is LTMR100MFM a better fit than a basic motor protection device?
The main advantage is the combination of protection + monitoring + control + communication.
If the requirement is simply to protect a motor against overload, a conventional protection device may be sufficient. However, when the customer needs motor information to be available to a PLC/HMI or plant management system, a motor management controller such as the LTMR100MFM becomes more useful.
Consider the Motor Current Carefully
The LTMR100MFM is designed for the 5–100 A range. The actual motor full-load current should therefore be checked before selecting the controller.
For replacement projects, customers should also check the existing TeSys T configuration rather than selecting the replacement solely by appearance or model number.
Check the Communication Requirement
LTMR100MFM is the Modbus version of the LTMR controller. If the existing control system uses another communication protocol, the communication architecture should be checked before ordering. Schneider's LTMR platform was available in different communication versions. 施耐德电气产品信息
Check the Complete Motor Control System
The controller is part of the TeSys T motor management system, so customers replacing an existing unit should check the associated components, wiring, sensors, HMI, and expansion modules where applicable.
This is particularly important for replacement projects because an identical-looking controller does not necessarily mean that the complete system configuration is interchangeable.
Product Status
Schneider Electric's U.S. product page currently lists LTMR100MFM for discontinuation in 2026, with standard service scheduled to end on January 31, 2027. Schneider Electric's U.S. page currently lists TeSys Tera combinations as recommended replacements, including the LTMTMFM Modbus main unit with the appropriate current sensor. Schneider Electric
For customers looking for an existing LTMR100MFM, the actual availability and condition should therefore be confirmed before ordering. For a replacement project, it is better to provide the existing model, motor current, control voltage, communication requirement, and existing system configuration so the replacement can be checked properly.
FAQ
1. What is Schneider Electric LTMR100MFM used for?
LTMR100MFM is a TeSys T motor management controller used for industrial motor protection, monitoring, control, diagnostics, and Modbus communication.
2. What motor current range does LTMR100MFM support?
The LTMR100MFM is designed for a 5–100 A motor current range. 施耐德电气产品信息
3. Does LTMR100MFM support Modbus communication?
Yes. The M in the LTMR100MFM reference identifies the Modbus communication version. It can communicate motor-related information with an industrial automation system. 施耐德电气产品信息
4. How many logic inputs does LTMR100MFM have?
The controller has six built-in logic inputs. These can be used for external control and status signals depending on the selected operating mode and application configuration. 施耐德电气产品信息
5. Is LTMR100MFM discontinued?
Schneider Electric's U.S. website currently lists LTMR100MFM as scheduled for discontinuation in 2026, with standard service ending on January 31, 2027. Availability may therefore depend on remaining stock. Schneider currently lists TeSys Tera components as replacement options on its U.S. product page.
