Documentation & Downloads
Schneider Electric LRD07 TeSys Deca Thermal Overload Relay 690VAC 1.6-2.5A 1NO+1NC Class 10A
- MPN: LRD07
- PPN: SCH-LRD07
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Description
TeSys LRD thermal overload relay, 2.5A/690V, thermal setting range 1.6-2.5A, tripping class 10A, for protection of 3-phase motors 0.75kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector, a test selector for simulation of a tripping, reset and stop buttons, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by screw clamp terminals, it connects directly to the bottom terminals of 3-pole contactors LC1D09-D38. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LAD7B106 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).
Features
- The LRD07 is a TeSys Deca differential thermal overload relay designed to protect AC motors from overcurrent, phase unbalance, and phase failure. It monitors the current flowing to the motor and automatically trips the circuit if the levels exceed safe limits, preventing the motor windings from overheating and suffering permanent insulation damage.
- This unit features a precision adjustment dial with a range of 1.6 to 2.5 Amps. This allows you to calibrate the protection exactly to your motor's Full Load Amps (FLA), ensuring a tight safety margin that prevents nuisance tripping during normal operation while reacting instantly to mechanical jams or electrical faults.
- The LRD07 is a differential relay, meaning it is specifically engineered to detect an imbalance between phases. If one phase is lost—a common cause of rapid motor burnout—the relay will trip significantly faster than a standard overload, providing an essential layer of defense for your three-phase equipment.
- The relay comes equipped with 1 NO (Normally Open) and 1 NC (Normally Closed) auxiliary contacts. Typically, the NC contact is wired in series with the contactor coil to stop the motor upon a fault, while the NO contact provides a signal to a pilot light or PLC input to alert operators that a trip has occurred.
- The LRD07 features a blue selector lever that allows you to toggle between Manual and Automatic reset modes. It also includes an integrated "Stop" button that allows you to manually break the control circuit and a "Test" function to verify the integrity of the internal trip mechanism without disconnecting any wiring.
Documentation & Downloads
Specifications
Additional
- Amperage
- 1.6-2.5 A
- Network Frequency
- 0-400 Hz
- Conventional Thermal Current
- 5 A signalling circuit
- Rated Impulse Withstand Voltage
- 6 kV
- Control Type
- Red push-button stop, Blue push-button reset
- Thermal Overload Class
- Class 10A IEC 60947-4-1
- Dielectric Strength
- 1.89 kV 50 Hz IEC 60947-1
- Climatic Withstand
- IACS E10
- Standards
- IEC 60947-4-1, 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
- Ambient Air Temperature for Operation
- -20 to 60 °C without derating IEC 60947-4-1
- Associated Fuse Rating
- 4 A gG and BS for signalling circuit
- Height
- 66 mm (2.60 in)
- Depth
- 70 mm (2.76 in)
- Connections - Terminals
- Screw clamp terminals for control and power circuits, accommodates 1-10 mm² wires, with or without cable end
- Device Short Name
- LRD
- Network Type
- AC, DC
- Circularity Profile
- ENVEOLI0802006
- Eu Rohs Directive
- Compliant with Exemptions
- Reach Regulation
- Contains SVHC above threshold
- Mercury Free
- Yes
- Warranty
- 18 months
Voltage690 V AC
Tripping Threshold1.14 ± 0.06 Ir
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 phases
Temperature Compensation-20 to 60 °C
Mechanical RobustnessVibrations 6 Gn, Shocks 15 Gn for 11 ms IEC 60068
IP RatingIP20 IEC 60529
Flame RetardanceV1 UL 94
Product CertificationsIEC, UL, CSA, CCC, EAC, BV, RINA, DNV GL, Lloyds Register, ATEX, INERIS, UKCA
Ambient Air Temperature for Storage-60 to 70 °C
Mounting Supportplate, rail, or under contactor with specific accessories
Width45 mm (1.77 in)
Weight0.124 kg (0.27 lb)
MountingDIN rail or screw fixing
Product CompatibilityLC1D09, LC1D12, LC1D18, LC1D25, LC1D32, LC1D38
Relay ApplicationMotor protection
Environmental DisclosureENVPEP080206EN
China Rohs RegulationProduct out of China RoHS scope, substance declaration provided
Rohs Exemption InformationYes
Sustainable Offer StatusGreen Premium product
Country of OriginFrance
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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
Looking to buy a large quantity?
To view product inventory
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