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Specification & Description
| Specification | Description |
|---|---|
| Part Number | LT3SM00MW |
| Manufacturer | Schneider |
| Product Type | Monitoring Relay |
| Control Circuit Voltage | 24 to 230 V AC/DC |
| Reset Type | Manual |
| Contacts Type and Composition | 2 Changeover (C/O) Multi Voltage |
| Free Air Thermal Current (Ith) | 5 A |
| Rated Insulation Voltage (Ui) | 500 V AC |
| Rated Operational Voltage (Ue) | 250 V AC 50/60 Hz |
| Signalling Function | Fault Indication, Voltage Indication |
| Control Type | Manual Reset, Manual Test |
| Probe Interchangeability | Label mark A conforming to IEC 60034-11 |
| Hold-in Power Consumption | 1 W (Watt) |
| Hold-in Power Consumption in VA | 2.5 VA (Volt-Ampere) |
| Resistance for Reset | 1500 to 1650 Ohm |
| Resistance for Tripping | 2700 to 3100 Ohm |
| Number of Probes | 0 to 6 |
| Input Voltage for Probes | < 2.5 V (1500 Ohm), < 7.5 V (4000 Ohm) |
| Maximum Short Circuit Detection Resistance | 20 Ohm |
| Connection of Probes | 1000 m for ≥ 2.5 mm², 500 m for ≥ 1.5 mm² |
| Rated Impulse Withstand Voltage (Uimp) | 2.5 kV |
| Rated Power in VA | 100 VA at 220 V |
| 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 |
| Tightening Torque | 0.8 N.m |
| Dimensions (Height x Width x Depth) | 100 mm x 22.5 mm x 100 mm |
| Product Weight | 0.22 kg |
| Standards | IEC 60947-8, IEC 60034-11, VDE 0660 |
| IP Degree of Protection | IP20 conforming to IEC 60529 and VDE 0106 |
| Ambient Air Temperature for Operation | -25 to 60 °C |
| Ambient Air Temperature for Storage | -40 to 85 °C |
| Operating Altitude | ≤ 1500 m without derating in temperature, > 1500 to 3000 m with derating in temperature |
| Vibration Resistance | 1 gn 25 to 150 Hz, 2.5 gn 2 to 25 Hz |
| Shock Resistance | 5 gn 11 ms |
| Electromagnetic Compatibility | Compliant with various IEC 61000 standards for EMC |
The Schneider LT3SM00MW is a sophisticated monitoring relay designed to ensure the optimal performance and safety of temperature-sensitive systems. This component is part of Schneider's TeSys product range and is engineered to provide thermistor protection for a variety of applications. With a control circuit voltage ranging from 24 to 230 V AC/DC, it is versatile and suitable for diverse electrical setups.
The LT3SM00MW features a manual reset function, allowing for hands-on control and troubleshooting. It is equipped with 2 changeover (C/O) contacts, offering multi-voltage operation and a conventional free air thermal current of 5 A for the output control relay. The rated insulation voltage stands at 500 V AC, ensuring robust insulation and safety during operation.
This monitoring relay is designed with fault indication and voltage indication signalling functions, which contribute to easier diagnostics and maintenance. The manual test function adds an extra layer of convenience for system checks. Additionally, the relay supports probe interchangeability with a label mark A conforming to IEC 60034-11, which simplifies the replacement process.
The LT3SM00MW is built to withstand challenging environmental conditions, with an operating temperature range of -25 to 60 °C and storage temperatures from -40 to 85 °C. It also boasts a rated impulse withstand voltage of 2.5 kV and a rated power in VA of 100 VA at 220 V, with an electrical durability of 500,000 cycles.
With a compact design, the relay measures 100 mm in height, 22.5 mm in width, and 100 mm in depth, making it suitable for installations where space is at a premium. The unit's cage type connectors accommodate cables ranging from 0.75 to 2.5 mm², ensuring secure and reliable connections.
The Schneider LT3SM00MW is a testament to Schneider Electric's commitment to quality, reliability, and innovation, making it an excellent choice for monitoring and protecting your temperature-sensitive systems.
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Frequently Asked Questions
What is the control circuit voltage range for this monitoring relay?
The monitoring relay operates within a control circuit voltage range of 24 to 230 V AC 50/60 Hz and 24 to 230 V DC.
Can the relay be manually reset?
Yes, the relay features a manual reset function.
What type of contacts does this relay have?
The relay is equipped with 2 changeover (C/O) multi-voltage contacts.
What is the rated insulation voltage for this relay?
The rated insulation voltage for the output control relay is 500 V AC.
What is the thermal current rating for this device?
The conventional free air thermal current rating (Ith) for the output control relay is 5 A.
What are the dimensions of this temperature monitoring relay?
The dimensions of the relay are 22.5 mm in width, 100 mm in height, and 100 mm in depth.
What is the product weight?
The weight of the relay is approximately 0.22 kg.
What are the environmental operating conditions for this relay?
The relay can operate in ambient air temperatures ranging from -25 to 60 °C and can be stored in temperatures from -40 to 85 °C. It is also rated for operation at altitudes up to 1500 m without derating in temperature.
What is the resistance to vibration and shock for this relay?
The relay has a vibration resistance of 1 gn from 25 to 150 Hz and a shock resistance of 5 gn for 11 ms.
How does this relay perform in terms of electromagnetic compatibility?
The relay is designed to resist electrostatic discharge, fast transients, and surges, and is immune to microbreaks and voltage drops, conforming to various IEC standards for electromagnetic compatibility.
What is the significance of the IP degree of protection?
The IP degree of protection indicates the level of protection against ingress of solid objects and liquids. This relay has an IP20 rating, meaning it is protected against solid objects larger than 12.5 mm but not against water.
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