steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 weeks ago
Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
| Specification | Description |
|---|---|
| Part Number | LT3SM00ED |
| Manufacturer | Schneider |
| Product Series | LT3 |
| Device Short Name | LT3SE |
| Product Type | Thermistor Protection Unit |
| Control Circuit Voltage | 24...48 V DC |
| Reset Type | Manual |
| Contacts Type and Composition | 1 NC + 1 NO dual voltage |
| Conventional Free Air Thermal Current | 5 A for output control relay |
| Rated Insulation Voltage | Output control relay: 500 V AC |
| Rated Operational Voltage | 250 V AC 50/60 Hz for output control relay |
| Signalling Function | Fault indication, Voltage indication |
| Control Type | Manual test, Manual reset |
| Probe Interchangeability | Label mark A conforming to IEC 60034-11 |
| Hold-in Power Consumption | In W: 1 W, In VA: 2.5 VA |
| Resistance | 1500…1650 Ohm reset, 2700…3100 Ohm tripping |
| Number of Probes | 0…6 |
| Input Voltage for Probe | < 2.5 V (1500 Ohm), < 7.5 V (4000 Ohm) conforming to IEC 60034-11 |
| Maximum Short Circuit Detection Resistance | 20 Ohm |
| Condition of Use | Connection of probes 1000 m for ≥ 2.5 mm², Connection of probes 500 m for ≥ 1.5 mm² |
| Rated Impulse Withstand Voltage | 2.5 kV |
| Rated Power in VA | 100 VA at 220 V - electrical durability: 500000 cycles |
| Breaking Capacity | 2 A at 24 V DC DC-13, 3 A at 250 V AC AC-16, 6 A at 120 V AC AC-16 |
| Connections - Terminals | Power circuit: cage type connector for cables 0.75...2.5 mm² |
| Tightening Torque | 0.8 N.m |
| Dimensions (H x W x D) | 100 mm x 22.5 mm x 100 mm |
| Product Weight | 0.22 kg |
| IP Degree of Protection | IP20 conforming to IEC 60529 and VDE 0106 |
| Ambient Air Temperature for Operation | -25…60 °C |
| Ambient Air Temperature for Storage | -40…85 °C conforming to IEC 60068-2-2 |
| Operating Altitude | ≤ 1500 m without derating in temperature, > 1500...3000 m with derating in temperature |
| Vibration Resistance | 1 gn 25...150 Hz conforming to IEC 60068-2-6, 2.5 gn 2...25 Hz conforming to IEC 60068-2-6 |
| Shock Resistance | 5 gn 11 ms conforming to IEC 60068-2-27 |
| Electromagnetic Compatibility | Resistance to electrostatic discharge, fast transients, surges, and electromagnetic fields |
The thermistor protection unit is designed to monitor the temperature of motors equipped with PTC thermistor sensors. It provides protection by tripping the relay and cutting off the power supply when overheating is detected, thus preventing potential damage to the motor.
Yes, the LT3SM00ED features a manual reset function that allows users to reset the relay after a trip due to overheating, once the temperature has returned to a safe level.
The unit requires a control circuit voltage of 24 to 48 V DC to operate effectively.
The unit contains 1 Normally Closed (NC) and 1 Normally Open (NO) contact, providing a dual voltage capability for versatile application.
The rated operational voltage for the unit is 250 V AC at 50/60 Hz.
The device can operate within an ambient air temperature range of -25 to 60 degrees Celsius and can be stored in temperatures ranging from -40 to 85 degrees Celsius. It is also designed to withstand certain levels of vibration and shock.
The unit has an IP20 degree of protection, conforming to IEC 60529 and VDE 0106 standards, which means it is protected against solid objects larger than 12.5 mm but not against water.
Up to 6 probes can be connected to the unit, allowing for multiple monitoring points within the motor system.
RoHS compliance means that the unit adheres to the Restriction of Hazardous Substances Directive, which restricts the use of specific hazardous materials found in electrical and electronic products.
The unit should be disposed of according to local regulations for electronic waste to ensure it does not end up in general rubbish bins and is recycled or disposed of in an environmentally friendly manner.
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
All parts new or reconditioned are covered by EU Automation 12 month warranty
No hassle returns policy
Dedicated customer support team
We understand that credit is a necessary part of business and offer credit agreements on request, subject to status.
Payment optionsWe accept Bank transfers and the following methods of payment:
All transactions are handled securely by HSBC and HSBC Merchant Services. For more information, please visit our dedicated payments page.
Global supplier of quality automation and control components
Dispose of your old unit by exchanging it for a working part.
A comprehensive repair service for faulty equipment.
Discover how we do our part to keep your production lines moving.