Description
Schneider LTMR27EFM Motor Management
Product Overview
The Schneider Electric LTMR27EFM is an advanced, high-performance motor management controller from the TeSys T range. It integrates motor control, full thermal and electrical protection, comprehensive monitoring, and industrial Ethernet fieldbus communications into a single compact unit.
Designed for critical process control applications, it protects 3-phase asynchronous motors across a current range of 1.35 A to 27 A (expandable with external CTs) while communicating seamlessly with PLCs, SCADA systems, and industrial automation networks via Ethernet/IP and Modbus TCP protocols.
Technical Specifications
| Parameter | Specification Details |
| Product Model | LTMR27EFM |
| Product Range | TeSys T |
| Device Function | Advanced Motor Management / Controller Unit |
| Rated Operational Current (I_e) | 1.35 A – 27 A (Direct pass-through; expandable up to 810 A via external CTs) |
| Control Supply Voltage (U_c) | 100 V AC – 240 V AC (50/60 Hz) |
| Network Communication | EtherNet/IP & Modbus TCP (Dual RJ45 ports with integrated Ethernet switch) |
| Digital Inputs / Outputs | 6 Logic Inputs (100–240 V AC) / 3 Logic Relay Outputs (NO) |
| Measurement Functions | Current (phase, zero-sequence), Voltage, Active/Reactive Power, Power Factor (cos\,\phi), Energy, Frequency, Temperature (PTC/PT100) |
| Protection Functions | Thermal overload, overload/underload, locked rotor, current unbalance, phase reversal, phase failure, ground fault, overvoltage/undervoltage, power factor drop |
| Operating Temperature | -20 °C to +60 °C |
| Mounting & Dimensions | DIN rail (35 mm) or screw fixing; 91 mm (H) × 91 mm (W) × 122.5 mm (D) |
Key Advantages
- Dual Ethernet Ports with Embedded Switch: Supports Daisy-Chain and Ring topologies (Device Level Ring – DLR), simplifying network wiring and enhancing network redundancy.
- Comprehensive Protection & Metering: Replaces multiple standalone devices (overload relays, voltage monitoring relays, power meters) by consolidating motor protection and power diagnostics into one device.
- Predictive Maintenance Data: Tracks motor operating hours, time-to-trip, time-to-reset, number of starts, and historical fault logs to prevent unplanned downtime.
- Flexible Automation Integration: Easily pairs with Schneider Electric’s SoMove software and integrates into standard industrial architectures (EcoStruxure, Rockwell Automation Logix, third-party PLCs).
- Modular Expansion: Supports additional extension modules (such as LTME extension modules) for custom I/O expansion or local Operator Control Units (LTMCU).
Important Usage & Installation Precautions
- Current Range Calibration: Ensure the motor’s Full Load Current (FLC) fits within 1.35 A–27 A for direct primary wiring. For motors above 27 A, external current transformers (CTs) must be used, and the CT transformation ratio must be correctly set in the controller configuration software.
- Network IP Configuration: Default IP addressing (DHCP/BOOTP) should be properly configured prior to commissioned operation using rotary switches or the configuration tool to prevent network address conflicts.
- Wiring Separation: Keep signal lines (analog/digital inputs, temperature sensor wiring) separate from high-power line cables to minimize electromagnetic interference (EMI).
- Ground Fault Sensing: If sensitive ground-fault protection is required at low current levels, connect an external 50/60 Hz zero-sequence current transformer (Earth Leakage CT) to the dedicated terminals.
- Firmware & Configuration Backup: Always back up parameters using SoMove software or an LTMCU operator panel prior to firmware updates or replacing hardware.
Applications
- Oil & Gas and Petrochemical: Critical motor starters in Motor Control Centers (MCC) requiring continuous process uptime and advanced diagnostics.
- Water & Wastewater Treatment: Large pump stations, aerators, and filtration systems requiring dry-run (underload) and phase failure protection.
- Mining, Minerals & Metals: Heavy-duty conveyors, crushers, and ball mills needing overload, locked-rotor, and jam protection.
- Pharmaceutical & Power Utilities: Continuous-process industrial fans, blowers, and pumps requiring continuous energy monitoring and fieldbus integration.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
Please make an inquiry for more models：
| SCHNEIDER | 140CPU43412AC |
| SCHNEIDER | 140CPU43412U |
| SCHNEIDER | 140CPU43412UC |
| SCHNEIDER | 140CPU53414BC |
| SCHNEIDER | 140CPU65260C |
| SCHNEIDER | 140CPU65160C |
| SCHNEIDER | 140CHS11000C |
| SCHNEIDER | 140CHS21000C |
| SCHNEIDER | BMXDDI1602 |
| SCHNEIDER | BMXDDO1602 |
| SCHNEIDER | BMXAMI0810 |
| SCHNEIDER | BMXAMO0802 |
| SCHNEIDER | BMH2052P11A2A |
| SCHNEIDER | BMXDAO1605 |
| SCHNEIDER | BMXCPS3020 |
| SCHNEIDER | BMXDDO6402K |
| SCHNEIDER | BMXP342020H |
| SCHNEIDER | BMXEHC0800 |
| SCHNEIDER | BMXAMO0410 |
| SCHNEIDER | BMXXBP1200 |
| SCHNEIDER | 140CRA21120 |
| SCHNEIDER | 140ERT85420 |
| SCHNEIDER | 140N0E77100 |
| SCHNEIDER | 140NOC78000 |
| SCHNEIDER | 140NRP95400 |
| SCHNEIDER | 140SDI95300S |
| SCHNEIDER | 140SDO95300S |
| SCHNEIDER | TSXP57303AM |
| SCHNEIDER | 416NHM30032A |
| SCHNEIDER | 416NHM30030A |
