Documentation & Downloads
Schneider Electric LRD04 TeSys Deca Thermal Overload Relay 0.4-0.63A 690V Class 10A
- MPN: LRD04
- PPN: SCH-LRD04
CAD
$124.05
/ EA
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Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
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Description
TeSys LRD overload relays are designed to be used with TeSys D contactors to make a motor starter. This overload relay can be used with 9 amp through 38 amp TeSys D contactors. These differential thermal overload relays detect over currents in the lines to the motor. When an overcurrent is detected the overload relay working with the contactor will disconnect the power to the motor. This will minimize the damage to the motor windings. This overload relay has an adjustable trip current rating of 0.4 to 0.63 amperes. This trip current rating is calibrated per Class 10A. Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine).
Features
- Designed with integrated differential tripping, this bimetallic thermal overload relay offers precision protection against single-phasing and phase unbalance. By automatically cutting power when it detects a loss of phase, it prevents the excessive heat buildup that leads to catastrophic motor winding failure, saving you thousands in emergency replacement costs and unscheduled industrial downtime.
- Featuring a calibrated adjustment dial, this relay allows for fine-tuned setting between 0.4 and 0.63 Amps to match your motor s specific nameplate data. This high-resolution control ensures the relay isn't too sensitive to start-up spikes while remaining responsive enough to trigger a trip the moment a genuine overload occurs, providing a custom-tailored safety net for low-horsepower machinery.
- Engineered for seamless mechanical and electrical connection, the LRD04 plugs directly into the bottom of LC1D09 through LC1D38 contactors. This "plug-and-play" integration eliminates the need for additional mounting brackets or complex wiring, significantly reducing panel assembly time and ensuring a compact, vibration-resistant footprint within your control enclosure.
- Equipped with a blue "Reset" button and a red "Stop" button, this unit provides flexible control for your maintenance workflow. You can toggle between manual reset for supervised safety or automatic reset for remote applications, while the built-in test trip simulation allows you to verify the internal mechanism and control wiring without needing an actual fault, ensuring your safety systems are always "mission-ready."
Documentation & Downloads
Specifications
Additional
- Thermal Protection Adjustment Range
- 0.4-0.63 A
- Thermal Overload Class
- Class 10A IEC 60947-4-1
- Auxiliary Contacts
- 1 NO + 1 NC
- Conventional Free Air Thermal Current
- 5 A signalling circuit
- Rated Impulse Withstand Voltage
- 6 kV
- Temperature Compensation Range
- -20 to 60 C (-4 to 140 F)
- Connection Terminals
- Screw clamp terminals for control and power circuits, 1-10 mm2 cable cross-section
- Height
- 66 mm (2.60 in)
- Depth
- 70 mm (2.76 in)
- IP Degree of Protection
- IP20 IEC 60529
- Ambient Air Temperature for Storage
- -60 to 70 C (-76 to 158 F)
- Mechanical Robustness
- Vibrations 6 Gn IEC 60068-2-6, Shocks 15 Gn for 11 ms IEC 60068-2-7
- Standards
- IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, EN IEC 60947-5-1, GB/T 14048.4, EN 50495
- Reach Regulation
- Contains Substances of Very High Concern above threshold
- Mercury Free
- Yes
- Country of Origin
- France
Rated Operational Voltage690 V AC, 0-400 Hz power circuit IEC 60947-4-1
Relay ApplicationMotor Protection
Tripping Threshold1.14 0.06 Ir IEC 60947-4-1
Permissible Current3 A 120 V AC-15 signalling circuit, 0.22 A 125 V DC-13 signalling circuit
Phase Failure SensitivityTripping current 130% of Ir on two phase, last one at 0
Mounting SupportPlate, Rail with accessories, Under Contactor
Tightening Torque1.7 N m (15.05 lbf in)
Width45 mm (1.77 in)
Net Weight0.124 kg (0.27 lb)
Ambient Air Temperature for Operation-20 to 60 C (-4 to 140 F) without derating IEC 60947-4-1
Flame RetardanceV1 UL 94
Dielectric Strength1.89 kV 50 Hz IEC 60947-1
Product CertificationsIEC, UL, CSA, CCC, EAC, ATEX, UKCA, BV, RINA, DNV-GL, Lloyds register, Marine
RoHS ComplianceCompliant with Exemptions
Sustainable Offer StatusGreen Premium
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CAD
$124.05
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
Loading dialog...
Looking to buy a large quantity?
To view product inventory
Spec sheet
CAD$124.05/ EA
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