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The LTMR08PFM is a motor management relay developed by Schneider Electric. It is a versatile and reliable device designed to provide comprehensive protection and control for motors. This compact relay offers a wide range of features and functionalities, including motor thermal protection, load monitoring, and programmable functions. It assists the safe and efficient operation of motors by preventing overheating, monitoring performance, and enabling quick diagnostics. With its user-friendly interface and seamless integration capabilities, the LTMR08PFM is suitable for various motor applications, helping optimize performance, increase energy efficiency, and enhance overall motor reliability.
Products specifications
| Attribute name | Attribute value |
|---|---|
| Main | |
| Device short name | LTMR |
| Device application | equipment monitoring and control |
| Supply voltage limits | 93.5-264 V AC |
| Bus type | Profibus DP polarised 2-wire RS485 interface, addressing 1...125, transmission rate 9.6 kbit/s...12 Mbit/s, terminal block with 2 shielded twisted pairs, type A, Profibus DP polarised 2-wire RS485 interface, addressing 1...125, transmission rate 9.6 kbit/s...12 Mbit/s, SUB-D 9 with 2 shielded twisted pairs, type A |
| Communication port protocol | Profibus DP |
| [Us] rated supply voltage | 100...240 V AC 50/60 Hz |
| Current consumption | 8...62.8 mA |
| Range | TeSys |
| Measurement current | 0.4-8 A |
| Product name | TeSys T |
| Product or component type | motor controller |
| Complementary | |
| Metering type | phase current I1, I2, I3 RMS, imbalance current, temperature, earth-fault current, average current Iavg |
| Maximum operating frequency | 2 Hz |
| Depth | 122.5 mm |
| Tightening torque | control circuit: 0.5-0.6 N.m flat screwdriver 3 mm |
| Overvoltage category | III |
| Load current | 5 A at 30 V DC for logic output, 5 A at 250 V AC for logic output |
| Width | 91 mm |
| Web services | web server |
| Protection type | overload (long time), thermal overload protection, power factor variation, thermal protection, load fluctuation, reverse polarity protection, earth-leakage protection, phase failure, phase unbalance, overload, locked rotor |
| Compatibility code | LTMR |
| Short-circuit withstand | 100 kA conforming to EN/IEC 60947-4-1 |
| [Ui] rated insulation voltage | 690 V conforming to UL 508, 690 V conforming to CSA C22.2 No 14, 690 V conforming to EN/IEC 60947-1 |
| Current state 0 guaranteed | logic input: 0...40 V and <= 15 mA for 25 ms |
| Measurement accuracy | 5 % active and reactive power, 1 % current, 0,02 temperature, +/- 30 min/year internal clock, 5 % earth fault current external measurement, 3 % power factor, 1 % voltage (100...830 V), 5...15 % earth fault current internal measurement |
| Electromagnetic compatibility | control circuit: surges (serial mode), 1 kV, conforming to EN/IEC 61000-4-5, temperature sensor: surges (common mode), 1 kV, conforming to EN/IEC 61000-4-5, temperature sensor: surges (serial mode), 0.5 kV, conforming to EN/IEC 61000-4-5, conducted RF disturbances, 10 V, conforming to EN/IEC 61000-4-6, voltage dips and interruptions immunity test, 70 %, 500 ms, conforming to EN/IEC 61000-4-11, fast transients immunity test (on supply and relay outputs), level 4, 4 kV, conforming to EN/IEC 61000-4-4, fast transients immunity test (other circuits), level 3, 2 kV, conforming to EN/IEC 61000-4-4, radiated RF fields, 3, 10 V/m, conforming to EN/IEC 61000-4-3, control circuit: surges (common mode), 2 kV, conforming to EN/IEC 61000-4-5, relay outputs and supply: surges (common mode), 4 kV, conforming to EN/IEC 61000-4-5, relay outputs and supply: surges (serial mode), 2 kV, conforming to EN/IEC 61000-4-5, communication: surges (common mode), 2 kV, conforming to EN/IEC 61000-4-5, electrostatic discharge, 3, 8 kV air, 6 kV contact, conforming to EN/IEC 61000-4-2 |
| Associated fuse rating | 0.5 A gG for control circuit, 4 A gG for output |
| [Uimp] rated impulse withstand voltage | 0.8 kV communication circuit conforming to EN/IEC 60947-4-1, 6 kV current or voltage measurement circuit conforming to EN/IEC 60947-4-1, 4 kV supply, inputs and outputs conforming to EN/IEC 60947-4-1 |
| Net weight | 0.53 kg |
| Current state 1 guaranteed | logic input: 79...264 V and >= 2 mA for 25 ms |
| Input current | 7.5 mA at 240 V, 3.1 mA at 100 V |
| Connections - terminals | control circuit: connector 2 cable(s) 0.2-1 mm² (AWG 24...AWG 14) solid without cable end, control circuit: connector 2 cable(s) 0.5-1.5 mm² (AWG 24...AWG 14) flexible without cable end, control circuit: connector 2 cable(s) 0.2-1.5 mm² (AWG 24...AWG 14) flexible without cable end, control circuit: connector 2 cable(s) 0.2-1 mm² (AWG 24...AWG 14) flexible with cable end, control circuit: connector 1 cable(s) 0.2-2.5 mm² (AWG 24...AWG 14) solid without cable end, control circuit: connector 1 cable(s) 0.25-2.5 mm² (AWG 24...AWG 14) flexible without cable end, control circuit: connector 1 cable(s) 0.2-2.5 mm² (AWG 24...AWG 14) flexible without cable end, control circuit: connector 1 cable(s) 0.25-2.5 mm² (AWG 24...AWG 14) flexible with cable end |
| Maximum operating rate | 1800 cyc/h |
| Logic input number | 6 |
| Pollution degree | 3 |
| Network and machine diagnosis type | remaining operating time before overload tripping, trip context information, running hours counter/operating time, motor control command recording, event recording, waiting time after overload tripping, fault recording, starting current and time, trip history information, phase fault and earth fault trip counters |
| Permissible power | 30 W (DC-13), Ie = 1.25 A, 500000 cycles (output), 480 VA (AC-15), Ie = 2 A, 500000 cycles (output) |
| Connection pitch | 5.08 mm |
| Height | 61 mm |
| Contacts type and composition | 3 NO, 1 NO + 1 NC fault signal |
| Environment | |
| IP degree of protection | IP20 |
| Fire resistance | 960 °C conforming to UL 94, 650 °C conforming to EN/IEC 60695-2-12 |
| Operating altitude | <= 2000 m without derating |
| Protective treatment | TH conforming to EN/IEC 60068, 48 h conforming to EN/IEC 60070-2-11, 12 x 24 hour cycles conforming to EN/IEC 60068-2-30 |
| Ambient air temperature for storage | -40-80 °C |
| Standards | CSA C22.2 No 14, IACS E10, EN 60947-4-1, IEC 60947-4-1, UL 508 |
| Ambient air temperature for operation | -20-60 °C |
| Mechanical robustness | shocks half sine wave acceleration: 15 Gn for 11 ms conforming to EN/IEC 60068-2-27, vibrations plate mounted: 4 Gn, 5...300 Hz conforming to EN/IEC 60068-2-6, vibrations mounted on symmetrical rail: 1 Gn, 5...300 Hz conforming to EN/IEC 60068-2-6 |
| Product certifications | KERI, ATEX, RMRoS, RINA, DNV, BV, EAC, GL, ABS, NOM, LROS (Lloyds register of shipping), CCC, UL, C-Tick, CSA |
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