Documentation & Downloads
Schneider Electric LRD3359 TeSys Deca Thermal Overload Relay 48-65 A Class 10A
- MPN: LRD3359
- PPN: SCH-LRD3359
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$266.09
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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 80 amp through 95 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 48 to 65 amperes. This trip current rating is calibrated per Class 10A. Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine).
Features
- Featuring an integrated setting dial that adjusts from 48 to 65 Amps, this bimetallic relay allows electrical contractors to match the precise Full Load Amperage (FLA) of three-phase motors. This granular adjustment prevents premature or nuisance tripping during normal, heavy startup draws while guaranteeing robust overcurrent protection for large 30kW pumps, fans, and compressors.
- Purpose-built for the Schneider Electric TeSys Deca framework, this relay mounts directly beneath standard LC1D80 and LC1D95 3-pole contactors. The plug-and-play pin alignment eliminates the labor, space, and wiring costs of separate mounting bases, allowing panel builders to optimize space inside crowded control enclosures.
- This differential overload relay monitors incoming current and rapidly triggers a trip if it detects a single-phase loss or a major phase unbalance. By breaking the control circuit before the motor windings overheat from running on unbalanced voltage, it shields critical plant equipment from catastrophic insulation failure and expensive burnouts.
- Calibrated strictly to a Class 10A trip curve, this safety device guarantees a reliable circuit interruption within 10 seconds of an overcurrent or locked-rotor event. This standard-speed response safely absorbs temporary inrush currents when starting high-inertia loads while responding quickly enough to preserve the operational lifespan of your motor infrastructure.
Documentation & Downloads
Specifications
Additional
- Amperage
- 48-65 A
- Voltage
- 1000 V AC 0-400 Hz power circuit IEC 60947-4-1
- Phase
- 3-phase
- Tripping Threshold
- 1.14 +/- 0.06 D7 Ir IEC 60947-4-1
- Permissible Signalling Current
- 0.72 A AC-15 at 500 V, 0.06 A DC-13 at 440 V
- Rated Impulse Withstand Voltage
- 6 kV IEC 60947-1
- Control Type
- Red push-button stop, Blue push-button reset
- Net Weight
- 0.51 kg (1.12 lb)
- Tightening Torque
- Control circuit 1.7 NB7m, Power circuit 9 NB7m
- Ambient Operating Temperature
- -20 to 60 B0C (-4 to 140 B0F) without derating IEC 60947-4-1
- Vibrations Resistance
- 6 Gn IEC 60068-2-6
- Dielectric Strength
- 2.2 kV 50 Hz IEC 60947-1
- Product Certifications
- IEC, UL, CSA, CCC, EAC, ATEX, INERIS, UKCA
- Flame Retardance
- V1 UL 94
- Country of Origin
- France
Thermal Overload ClassClass 10A IEC 60947-4-1
Power Rating30 kW @ 400 V
Thermal Protection Adjustment Range48-65 A
Maximum Conventional Free Air Thermal Current5 A signalling circuit
Rated Operational Voltage1000 V AC 0-400 Hz power circuit IEC 60947-4-1
Phase Failure SensitivityTrips at 130% of Ir on two phases (one phase at 0)
Dimensions (H x W x D)81 mm x 70 mm x 115 mm (3.19 in x 2.76 in x 4.53 in)
Connection TerminalsPower circuit screw clamp terminals 1 4-35 mmB2 flexible or solid; Control circuit screw clamp terminals 2 1-2.5 mmB2 flexible or solid
IP Degree of ProtectionIP20 IEC 60529
Storage Temperature Range-60 to 70 B0C (-76 to 158 B0F)
Shock Resistance15 Gn for 11 ms IEC 60068-2-7
StandardsIEC 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
Environmental ComplianceRoHS compliant, REACH free of SVHC, Mercury free, China RoHS compliant
Warranty18 months
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CAD
$266.09
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
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Looking to buy a large quantity?
To view product inventory
Spec sheet
CAD$266.09/ EA
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