Description

Schneider LRD02 | TeSys LRD thermal overload relays – 0.16…0.25 A – class 10A

Schneider LRD02: Ensuring Safety and Efficiency in Industrial Applications

it is a vital component in industrial settings, offering advanced protection for electrical motors against overload conditions. This article will delve into the features, applications, working mechanism, benefits, installation, maintenance, comparison with alternatives, and customer reviews of the Schneider LRD02.

Introduction to Schneider LRD02

it is a motor overload relay designed to safeguard electrical motors from excessive current flow. It is manufactured by Schneider Electric, a renowned global provider of energy and automation solutions.

Features of Schneider LRD02

Overload Protection

One of the primary features of it is its ability to detect overload conditions in electrical motors. It continuously monitors the current passing through the motor and triggers a protective action if it exceeds the preset threshold.

Compact Design

Despite its robust functionality, it boasts a compact and space-saving design. This makes it suitable for installations where space is limited.

Thermal Protection

In addition to overload protection, it also offers thermal protection. It detects overheating in motors and prevents damage by interrupting the power supply.

Easy Installation

it is designed for hassle-free installation, with clear instructions provided in the user manual. It can be easily integrated into existing motor control systems.

Applications

it finds wide-ranging applications in various industries, including:

  • Industrial Machinery: It is commonly used in manufacturing facilities to protect motors powering conveyor belts, pumps, and other machinery.
  • HVAC Systems: Schneider LRD02 ensures the smooth operation of heating, ventilation, and air conditioning systems by preventing motor overheating.
  • Electrical Panels: It is installed in electrical panels to provide comprehensive protection for motors across different applications.

How Schneider LRD02 Works

it operates by sensing the current passing through the motor and comparing it to the preset threshold. When an overload condition is detected, it activates the protective mechanism, which can include shutting off power to the motor.

Benefits of Using

Prevents Motor Damage

By promptly detecting and responding to overload conditions, it helps prevent costly damage to electrical motors, extending their lifespan.

Enhances Safety

The use it enhances safety in industrial environments by reducing the risk of motor-related accidents and fires caused by overload conditions.

Reduces Downtime

With its reliable protection mechanism, it minimizes downtime associated with motor failures, thereby improving overall productivity and efficiency.

Installation and Maintenance

Installation Guidelines

it should be installed according to the manufacturer’s recommendations, ensuring proper wiring and connection to the motor control system.

Maintenance Tips

Regular inspection and maintenance of it are essential to ensure its continued reliability. This includes checking for loose connections, cleaning, and testing functionality.

Comparing Schneider LRD02 with Alternatives

When compared to alternative motor overload relays, it stands out for its:

  • Cost-Effectiveness: Despite its advanced features, it offers excellent value for money.
  • Performance: It delivers reliable and precise protection against overload conditions, surpassing many competing products in terms of performance and durability.

Conclusion

Schneider LRD02 is an indispensable component for ensuring the safety and efficiency of electrical motors in industrial applications. With its advanced features, ease of installation, and proven reliability, it is the preferred choice for professionals seeking comprehensive motor protection.

Additional information

brands

Schneider Electric

Specifications

Main
Range TeSys TeSys Deca
Product name TeSys LRD TeSys Deca
product or component type Differential thermal overload relay
Device short name LRD
Relay application Motor protection
Product compatibility LC1D25 LC1D38 LC1D12 LC1D09 LC1D18 LC1D32
Network type DC AC
Thermal overload class Class 10A conforming to IEC 60947-4-1
Thermal protection adjustment range 0.16…0.25 A
[Ui] rated insulation voltage Power circuit: 600 V conforming to CSA Power circuit: 600 V conforming to UL Power circuit: 690 V conforming to IEC 60947-4-1
Complementary
Network frequency 0...400 Hz
Mounting support Plate, with specific accessories Rail, with specific accessories Under contactor
Tripping threshold 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
Auxiliary contact composition 1 NO + 1 NC
[Ith] conventional free air thermal current 5 A for signalling circuit
Permissible current 3 A at 120 V AC-15 for signalling circuit 0.22 A at 125 V DC-13 for signalling circuit
[Ue] rated operational voltage 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
Associated fuse rating 4 A gG for signalling circuit 4 A BS for signalling circuit
[Uimp] rated impulse withstand voltage 6 kV
Phase failure sensitivity Tripping current 130 % of Ir on two phase, the last one at 0
Control type Red push-button: stop Blue push-button: reset
Temperature compensation -20…60 °C
Connections - terminals Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² flexible without cable end Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² flexible with cable end Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² solid without cable end Power circuit: screw clamp terminals 1 cable(s) 1.5…10 mm² flexible without cable end Power circuit: screw clamp terminals 1 cable(s) 1…4 mm² flexible with cable end Power circuit: screw clamp terminals 1 cable(s) 1…6 mm² solid without cable end
Tightening torque Control circuit: 1.7 N.m - on screw clamp terminals Power circuit: 1.7 N.m - on screw clamp terminals
Height 66 mm
Width 45 mm
Depth 70 mm
Net weight 0.124 kg
Environment
Climatic withstand conforming to IACS E10
IP degree of protection IP20 conforming to IEC 60529
Ambient air temperature for operation -20…60 °C without derating conforming to IEC 60947-4-1
Ambient air temperature for storage -60…70 °C
Flame retardance V1 conforming to UL 94
Mechanical robustness Vibrations: 6 Gn conforming to IEC 60068-2-6 Shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
Dielectric strength 1.89 kV at 50 Hz conforming to IEC 60947-1
Standards EN/IEC 60947-4-1 EN/IEC 60947-5-1 UL 60947-4-1 UL 60947-5-1 CSA C22.2 No 60947-4-1 CSA C22.2 No 60947-5-1 GB/T 14048.4 GB/T 14048.5 EN 50495
Product certifications IEC UL CSA CCC EAC BV RINA DNV-GL LROS (Lloyds register of shipping) ATEX INERIS UKCA
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 5.000 cm
Package 1 Width 8.000 cm
Package 1 Length 9.000 cm
Package 1 Weight 136.000 g
Unit Type of Package 2 S02
Number of Units in Package 2 24
Package 2 Height 15.000 cm
Package 2 Width 30.000 cm
Package 2 Length 40.000 cm
Package 2 Weight 3.576 kg
Unit Type of Package 3 P06
Number of Units in Package 3 384
Package 3 Height 75.000 cm
Package 3 Width 60.000 cm
Package 3 Length 80.000 cm
Package 3 Weight 65.328 kg
Contractual warranty
Warranty 18 months

Main documents

Main documents

Datasheet Download Datasheet
Product datasheet LRD02
User guide
Download
Instruction sheet
Download
Catalogue
Download
CAD Files Download
Environmental disclosure
Download

Main documents

Datasheet Download Datasheet
Product datasheet LRD02
User guide
Download
Instruction sheet
Download
Catalogue
Download
CAD Files Download
Environmental disclosure
Download

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