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LB1LD03M57
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | LB1LD03M57 |
| Manufacturer | Telemecanique |
| Product Type | Protection Module |
| Utilisation Category | AC-43 |
| Poles Description | 3P |
| Rated Operational Voltage [Ue] | 690 V AC |
| Thermal Protection Adjustment Range | 35…50 A |
| Magnetic Tripping Current | 300…600 A |
| Trip Unit Technology | Thermal-magnetic |
| Protection Type | Phase imbalance |
| Thermal Overload Class | Class 20 |
| Motor Power kW | 11 kW at 220...240 V AC 50/60 Hz 25 kW at 400...415 V AC 50/60 Hz 25 kW at 440 V AC 50/60 Hz 33 kW at 480...525 V AC 50/60 Hz 45 kW at 600...690 V AC 50/60 Hz |
| Product Weight | 0.78 kg |
| Standards | NF C 63-650 |
| Protective Treatment | TH |
| IP Degree of Protection | IP20 B conforming to IEC 60144 IP20 B conforming to IEC 60529 |
| Ambient Air Temperature for Operation | -20…60 °C |
| REACh Regulation | REACh Declaration |
| EU RoHS Directive | Compliant |
The Telemecanique LB1LD03M57 is a robust protection module designed to safeguard electric starters in industrial settings. This thermal-magnetic device is part of the TeSys product range and is engineered to provide reliable protection for motors and circuits. It features a 3-pole configuration and is suitable for use in AC-43 utilisation categories.
With a rated operational voltage of up to 690 V AC, the LB1LD03M57 offers a thermal protection adjustment range of 35 to 50 A, ensuring precise control over motor operation. The magnetic tripping current is adjustable between 300 and 600 A, providing additional protection against short-circuit conditions.
This module is compatible with TeSys Integral contactor breakers and is designed to protect against phase imbalance and thermal overload with a Class 20 response. It is capable of handling motor power from 11 kW at 220...240 V AC up to 45 kW at 600...690 V AC, making it versatile for a wide range of applications.
The LB1LD03M57 is constructed to meet the highest standards, including NF C 63-650, and offers a protective treatment rated at TH. It also boasts an IP20 B degree of protection conforming to IEC standards, ensuring durability and safety in challenging environments. The ambient air temperature range for operation spans from -20 to 60°C, allowing for consistent performance under varying conditions.
This product is also environmentally conscious, complying with the REACh Regulation and the EU RoHS Directive, affirming its commitment to sustainability and the reduction of hazardous substances in its construction. The LB1LD03M57 is a dependable solution for industrial motor protection, delivering both performance and peace of mind.
Commonly Asked Questions
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Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
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Frequently Asked Questions
What is the utilisation category for this protection module?
The utilisation category for this protection module is AC-43, which is suitable for controlling and protecting motors.
Can you describe the trip unit technology used in this module?
The module employs thermal-magnetic trip unit technology, providing protection against phase imbalance and thermal overload.
What is the thermal protection adjustment range of this module?
The thermal protection adjustment range for this module is between 35 to 50 A.
What is the magnetic tripping current range for this device?
The magnetic tripping current range for this device is from 300 to 600 A.
What are the motor power ratings compatible with this module?
This module can handle motor power ratings up to 11 kW at 220...240 V AC, 25 kW at 400...415 V AC and 440 V AC, 33 kW at 480...525 V AC, and 45 kW at 600...690 V AC.
What is the weight of this protection module?
The weight of the module is approximately 0.78 kg.
What are the ambient air temperature limits for operating this module?
The module is designed to operate within an ambient air temperature range of -20 to 60°C.
What standards does this protection module comply with?
This module complies with the NF C 63-650 standard.
What is the IP degree of protection for this module?
The module has an IP degree of protection of IP20 B conforming to IEC 60144 and IEC 60529.
Is this product compliant with the EU RoHS Directive?
Yes, this protection module is compliant with the EU RoHS Directive.
What is the REACh Regulation status of this module?
The module is in compliance with the REACh Regulation, ensuring it meets European Union standards for chemical safety.
