IEC 60947-4-1 Standards for Contactors and Motor Starters Explained
Master AC-3 rating selection under IEC 60947-4-1 for contactors and motor starters, including utilization categories and coordination types. Shop at Stoklink.
- Part number
- LTMTCT3T
- Model no
- LTMT
- UL
Schneider Electric LTMTCT3T TeSys Tera CT Horizontal 0.3-3 A Sensor Module Automation Component
TeSys Tera CT sensor module, 0.3-3 A, horizontal mount, 690 V insulation
Description
About the LTMT
About the LTMT
The Schneider Electric LTMTCT3T is a TeSys Tera horizontal-mount sensor module measuring 0.3-3 A current for a TeSys Tera motor management system, with a 100 kA short-circuit withstand rating and an integral input for ground-fault CT.
Certifications & Standards
- IEC
- UL
- cUL
- EN/IEC 60947-4-1
- UL/CSA 60947-4-1
Selection Notes
Match the sensor's 0.3-3 A current range to the motor's full-load current rather than to the frame size of the breaker or contactor ahead of it; choose a CTV-coded module instead if the application also needs phase voltage, undervoltage/overvoltage or power-factor monitoring.
Specification
Full specification
Main 5
| Range | TeSys |
|---|---|
| Product name | TeSys Tera |
| Device short name | LTMT |
| Product or component type | Sensor |
| Device application | Motor protection |
Complementary 17
| [Ui] rated insulation voltage | 690 V conforming to EN/IEC 60947-1 |
|---|---|
| Overvoltage category | III |
| Pollution degree | 3 |
| [In] rated current | 0.3…3 A at 60...690 V, AC 45...65 Hz |
| [Uimp] rated impulse withstand voltage | 6 kV current or voltage measurement circuit |
| Protection type | Overload protection, Stalled rotor, Locked rotor, Short-circuit, Undercurrent, Overcurrent, Current unbalance, Phase reversal, Phase loss, Earth fault protection internal, Excessive starting time, Max number of start, Temperature protection, Communication failure, Fail to stop, Anti-backspin timer, Block output, DI interlock protection |
| Short-circuit withstand | 100 kA conforming to EN/IEC 60947-4-1 |
| Measurement accuracy | +/- 1 % current |
| Mounting mode | Horizontal |
| Connection pitch | 5.0 mm |
| Input type | Analog |
| Sensor type | Current sensor |
| Electromagnetic compatibility | Immunity to radiated electromagnetic interference (in open air), level 3, 10 Vrms, conforming to EN/IEC 61000-4-3, Resistance to electrostatic discharge (in open air), level 3, 8 kV, conforming to EN/IEC 61000-4-2, Digital output: resistance to electrostatic discharge (on contact), level 3, 6 kV, conforming to EN/IEC 61000-4-2, Digital output: immunity to shock waves (common mode), 4 kV, conforming to EN/IEC 61000-4-5, 24 V DC sensors: immunity to shock waves (common mode), 1 kV, conforming to EN/IEC 61000-4-5, 100...240 V inputs: immunity to shock waves (common mode), 2 kV, conforming to EN/IEC 61000-4-5, Communication: immunity to shock waves (common mode), 2 kV, conforming to EN/IEC 61000-4-5, Temperature sensor: immunity to shock waves (common mode), 1 kV, conforming to EN/IEC 61000-4-5, Digital output: immunity to shock waves (serial mode), 2 kV, conforming to EN/IEC 61000-4-5, 24 V DC sensors: immunity to shock waves (serial mode), level 3, 1 kV, conforming to EN/IEC 61000-4-5, 100...240 V inputs: immunity to shock waves (serial mode), 1 kV, conforming to EN/IEC 61000-4-5, Temperature sensor: immunity to shock waves (serial mode), 0.5 kV, conforming to EN/IEC 61000-4-5, Immunity to radiated radio-electrical interference, level 3, 10 Vrms, conforming to EN/IEC 61000-4-6 |
| Depth | 60.5 mm |
| Height | 74.7 mm |
| Width | 110.3 mm |
| Tightening torque | Control circuit: 0.5 N.m - with screwdriver flat 3 mm |
Environment 8
| Product certifications | IEC, UL, cUL |
|---|---|
| Standards | EN/IEC 60947-4-1, UL/CSA 60947-4-1 |
| Fire resistance | 650 °C conforming to EN/IEC 60695-2-12, 960 °C conforming to UL 94 |
| Protective treatment | 12 x 24 hour cycles conforming to EN/IEC 60068-2-30 |
| Ambient air temperature for storage | -40…80 °C |
| Operating altitude | <= 2000 m without derating |
| Mechanical robustness | Shocks half sine wave acceleration: 15 Gn for 11 ms conforming to EN/IEC 60068-2-27, Vibrations mounted on symmetrical rail: 1 Gn, 5...300 Hz conforming to EN/IEC 60068-2-6, Vibrations plate mounted: 4 Gn, 5...300 Hz conforming to EN/IEC 60068-2-6 |
| Ambient air temperature for operation | -20…70 °C |
Show all 54 specifications ↓ Show less ↑24 more values in Identification, Contractual warranty, Logistics.
Identification 7
| Part number | LTMTCT3T |
|---|---|
| Type designation | LTMT |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 16
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 7.000 cm |
| Package 1 Width | 9.000 cm |
| Package 1 Length | 14.000 cm |
| Package 1 Weight | 333.000 g |
| Unit Type of Package 2 | S01 |
| Number of Units in Package 2 | 2 |
| Package 2 Height | 15.000 cm |
| Package 2 Width | 15.000 cm |
| Package 2 Length | 40.000 cm |
| Package 2 Weight | 917.000 g |
| Shipping weight | 0.333 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for LTMTCT3T
No documents are on file for this part yet.
Ask us for the datasheet
Certifications
Certifications and standards
- UL
- EN/IEC 60947-4-1
- UL/CSA 60947-4-1
Quick answers
Questions about the LTMT
What is the HS code of LTMT for customs?
The tariff (HS) code on file for LTMT is 853890.
Where does LTMT ship from, and how fast?
LTMT ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Guides
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