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LRD04 - Thermal overload relay, TeSys Deca, 690VAC, 0.4 to 0.63A, 1NO+1NC, class 10A, screw clamp - Schneider Electric

Reference No. LRD04
Product Category Over Load Relay
Stock In Stock
Condition Brand New, Sealed Packaging

In Stock 200+ Qty

$63.58 CAD/EA
Quantity (Total: 95 Units) Estimated Delivery
2 Units Jul 19 - Jul 23
93 Units Jul 24 - Jul 26

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Download LRD04 data sheet
Schneider LRD04 Over Load Relay Technical Specification
Over Load Relay
Bimetal relay Type LR-D
Contactor Type LC1D09...LC1D38
Current Range 0.4-0.63A
Range of Product TeSys LRD/TeSys Deca
Secondary Volt Ac 400Vac
Sub Family TeSys Deca
Type Thermal Overload Relay

LRD04 - Thermal overload relay, TeSys Deca, 690VAC, 0.4 to 0.63A, 1NO+1NC, class 10A, screw clamp - Schneider Electric

Schneider Electric LRD04 - TeSys LRD thermal overload relay, 0.63A/690V, thermal setting range 0.4-0.63A, tripping class 10A, for protection of 3-phase motors 0.12-0.18kW@400V. Differential device with phase failure (loss). It provides a thermal adjustement dial, a manual-automatic reset selector, a test selector for simulation of a ... View More
Schneider LRD04 Product Dimensions
Width 7.7000 cm
Height 4.9000 cm
Depth 8.8000 cm
Weight 0.1390 kg
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Product Overview

The Electrihub proudly presents the Schneider Electric LRD04 TeSys Deca Thermal Overload Relay, a robust and essential component for safeguarding industrial electrical motors. This high-performance relay, with product code LRD04, is engineered to provide reliable thermal protection for 3-phase AC motors, preventing damage from overcurrents and phase loss. Featuring a precise thermal setting range of 0.4 to 0.63 A and a tripping class of 10A, the LRD04 ensures optimal motor longevity and operational continuity in demanding industrial environments.

Key Features

  • Adjustable Thermal Protection: Offers a precise thermal setting range from 0.4 to 0.63 A with a Class 10A tripping characteristic, ideal for protecting motors up to 0.18kW at 400V.
  • Phase Failure Detection: Incorporates a differential device to detect and protect against critical phase loss, enhancing motor reliability and preventing costly damage.
  • Integrated Control Functions: Equipped with a thermal adjustment dial, manual-automatic reset selector, test selector for trip simulation, and dedicated reset/stop buttons for comprehensive control.
  • Auxiliary Contact Configuration: Features 2 auxiliary contacts (1 NO + 1 NC) for effective fault signaling and integration into control circuits.
  • Versatile Mounting & Connection: Designed for direct connection to TeSys D contactors (LC1D09-D38) via screw clamp terminals, with options for separate DIN rail or screw fixing using an accessory terminal block.

Applications

  • Protection of 3-phase AC motors in industrial machinery.
  • Integration into motor control centers (MCCs) and control panels.
  • Safeguarding pumps, fans, compressors, and conveyor systems.
  • Use in HVAC systems and material handling equipment.
  • Ensuring operational reliability in various manufacturing and processing plants.

Benefits

  • Enhanced Motor Longevity: Provides critical protection against thermal overload and phase loss, significantly extending the lifespan of industrial motors.
  • Reduced Downtime: Prevents motor damage and subsequent operational interruptions, ensuring continuous production and minimizing maintenance costs.
  • Simplified Installation: Direct mounting compatibility with Schneider Electric TeSys D contactors streamlines wiring and panel assembly.
  • Reliable Fault Indication: Auxiliary contacts and a flag indicator enable clear fault signaling for rapid troubleshooting and system recovery.
  • Global Compliance: Multi-standard certifications (IEC, UL, CSA, CCC, EAC, ATEX, Marine) ensure suitability for diverse international applications.

Technical Specifications

Product Code LRD04
Brand Schneider Electric (TeSys Deca, Square D)
Product Type Thermal Overload Relay
Thermal Setting Range 0.4 - 0.63 A
Tripping Class 10A
Rated Operational Voltage 690 V
Motor Power (400V) 0.12 - 0.18 kW
Phase Failure Protection Yes (Differential Device)
Auxiliary Contacts 1 NO + 1 NC
Connection Type Screw Clamp Terminals
Mounting Options Direct to LC1D09-D38 contactors, DIN rail, Screw Fixing (with LAD7B106)
Certifications IEC, UL, CSA, CCC, EAC, ATEX, Marine

Frequently Asked Questions for LRD04 Over Load Relay

The Schneider LRD04 Overload Relay provides thermal protection for motors by automatically disconnecting the circuit during overload conditions. Key features include adjustable current settings, Phase-loss protection, Class 10A or Class 20 tripping, test/reset functions, and compatibility with Schneider contactors such as LC1D series. It enhances motor safety and prevents overheating in industrial applications.

The Schneider LRD04 Overload Relay supports adjustable current ranges depending on the model series. These ranges allow precise tuning to motor full-load current. Accurate current adjustment ensures optimum motor protection and prevents nuisance tripping during startup loads.

The Schneider LRD04 typically supports Class 10A/20 overload tripping curves, designed to protect motors against prolonged overcurrent conditions. These trip classes are suitable for general-purpose industrial motors, conveyors, compressors, and pumps.

The Schneider LRD04 Overload Relay is designed for direct mounting on Schneider LC1D contactors. It supports screw terminals or EverLink terminals, depending on frame size. This ensures easy wiring, compact installation, and reliable coordination with motor starters.

The Schneider LRD04 Overload Relay is used in motor starters, control panels, pumping systems, compressors, elevators, industrial machinery, and conveyor automation. It ensures overload protection and prevents motor failures.

Schneider Overload Relay prices vary by model, current rating, and availability. ElectriHub provides competitive and real-time pricing for original Schneider products. You can request a quote directly from our platform for the best updated price.

The Schneider Overload Relay datasheet includes trip class, current range, mounting type, coordination type (Type 1/Type 2), electrical endurance, terminal torque, auxiliary contact configuration, and environmental ratings. ElectriHub can provide the complete official PDF datasheet upon request.

Every Schneider LRD04 purchased from Electrihub is 100% genuine, brand new, and supplied in original sealed packaging — ensuring top performance and reliability. We source all products from trusted Schneider supply channels, so you can buy with complete confidence. Electrihub offers competitive pricing, fast delivery, and expert support to help you select the right Over Load Relay for your application. Whether for industrial automation, electrical panels, or control systems, you can rely on Electrihub for authentic Schneider products that deliver consistent quality and safety.

Every Schneider LRD04 Over Load Relay purchased from Electrihub is 100% genuine, brand new, and supplied in original sealed packaging — ensuring top performance and reliability. We source all products from trusted Schneider supply channels, so you can buy with complete confidence. Electrihub offers competitive pricing, fast delivery, and expert support to help you select the right Over Load Relay for your application. Whether for industrial automation, electrical panels, or control systems, you can rely on Electrihub for authentic Schneider products that deliver consistent quality and safety.

Reviews and Ratings


LRD04 - Thermal overload relay, TeSys Deca, 690VAC, 0.4 to 0.63A, 1NO+1NC, class 10A, screw clamp - Schneider Electric

5

Average Rating based on 7 ratings and 7 reviews

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