Documentation & Downloads
Schneider Electric LRD3359 TeSys Deca Thermal Overload Relay 48-65 A Class 10A
- MPN: LRD3359
- PPN: SCH-LRD3359
CAD
$266.09
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Description
TeSys LRD thermal overload relay, 65A/1000V, thermal setting range 48-65A, tripping class 10A, for protection of 3-phase motors 30kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector acting also as reset button, a trip test button for simulation of a tripping, a stop button, 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 LC1D80-D95. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LA7D3064 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).
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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CAD$266.09/ EA
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