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Specification & Description
| Specification | Description |
|---|---|
| Part Number | LT3SM00M |
| Manufacturer | Telemecanique |
| Product Type | Overload Relay |
| Control Circuit Voltage | 115 to 230 V ac, 50/60 Hz |
| Operational Voltage | 250 V ac |
| Thermal Current (Ith) | 5 A |
| Rated Insulation Voltage (Ui) | 500 V ac |
| Contacts Type and Composition | 1NO/1NC |
| Reset Type | Manual |
| IP Degree of Protection | IP20 |
| Ambient Operating Temperature | -25 to 60 °C |
| Storage Temperature | -40 to 85 °C |
| Operating Altitude | <= 1500 m without derating in temperature |
| Vibration Resistance | 1 gn 25...150 Hz conforming to IEC 60068-2-6 |
| Shock Resistance | 5 gn 11 ms conforming to IEC 60068-2-27 |
| Electromagnetic Compatibility | Conforms to IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-3, IEC 61000-4-11 |
| Dimensions (H x W x D) | 100 x 22.5 x 100 mm |
| Net Weight | 0.22 kg |
| Rated Power in VA | 100 VA at 220 V |
| Breaking Capacity | 2 A at 24 V DC, 3 A at 250 V AC, 6 A at 120 V AC |
| Connections - Terminals | Cage type connectors for cables 0.75…2.5 mm² |
| Tightening Torque | 0.8 N·m |
| Commodity Code | 853620 |
The Telemecanique LT3SM00M is a high-quality overload relay from the LT3S Series, designed to provide efficient and reliable protection for electric motors against excessive current draw. This component is essential for safeguarding motors in various industrial applications, ensuring they operate within their specified current limits.
Crafted for use with a control circuit voltage range of 115 to 230 V ac at 50/60 Hz, the LT3SM00M features a manual reset function, allowing for quick intervention and restoration of normal operation following a trip due to overload. The relay is equipped with 1NO/1NC contacts, offering a dual voltage capability and a rated insulation voltage of 500 V ac, which contributes to its versatility in different electrical environments.
With a conventional free air thermal current of 5 A and a rated operational voltage of 250 V ac, this overload relay is capable of handling significant electrical loads. The compact dimensions of 22.5 x 100 x 100 mm and an IP20 protection rating make it suitable for installation in a variety of control panels and enclosures, where space efficiency and protection from solid objects are important considerations.
The LT3SM00M is compliant with international standards, including IEC 60947-8 and IEC 60034-11, as well as VDE 0660, ensuring its performance and reliability are recognised globally. Its robust design allows it to operate within an ambient temperature range of -25 to 60 °C and at altitudes up to 1500 m without derating, making it suitable for a wide range of environmental conditions.
This overload relay also boasts impressive resistance to vibrations, shocks, and electromagnetic interference, which is critical for maintaining consistent performance in industrial settings where such disturbances are common.
In summary, the Telemecanique LT3SM00M overload relay is an essential component for motor protection, offering robust performance, versatile application, and compliance with international standards, making it a valuable addition to any industrial motor control system.
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Frequently Asked Questions
What is the control circuit voltage range for this overload relay?
The control circuit voltage range for the Telemecanique LT3SM00M overload relay is 115 to 230 V AC at 50/60 Hz.
Can this overload relay be manually reset?
Yes, the Telemecanique LT3SM00M features a manual reset function.
What type of contacts does this overload relay have?
The overload relay has 1 Normally Closed (NC) and 1 Normally Open (NO) dual voltage contact.
What is the rated insulation voltage for this device?
The rated insulation voltage for the output control relay is 500 V AC.
What is the rated operational voltage for this overload relay?
The rated operational voltage for the output control relay is 250 V AC at 50/60 Hz.
What are the dimensions of the Telemecanique LT3SM00M?
The dimensions of the overload relay are 22.5 x 100 x 100 mm.
What is the IP degree of protection for this overload relay?
The Telemecanique LT3SM00M has an IP20 degree of protection, conforming to IEC 60529 and VDE 0106.
What is the ambient operating temperature range for this device?
The ambient operating temperature range is -25 to 60 °C.
What is the resistance range for the reset and tripping functions?
The resistance range is 1500 to 1650 Ohm for reset and 2700 to 3100 Ohm for tripping.
How many probes can be connected to this overload relay?
Up to 6 probes can be connected to the Telemecanique LT3SM00M.
What is the breaking capacity of this overload relay?
The breaking capacity is 2 A at 24 V DC DC-13, 3 A at 250 V AC AC-16, and 6 A at 120 V AC AC-16.
What is the hold-in power consumption for this device?
The hold-in power consumption is 1 W and 2.5 VA.
What is the maximum short circuit detection resistance?
The maximum short circuit detection resistance is 20 Ohm.
What type of connections does this overload relay support?
The Telemecanique LT3SM00M supports cage type connectors for power circuits, accommodating cables from 0.75 to 2.5 mm².
