Documentation & Downloads
Schneider Electric LRD3363 TeSys Deca Thermal Overload Relay 63-80A, Class 10A, IP20
- MPN: LRD3363
- PPN: SCH-LRD3363
CAD
$308.69
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Description
TeSys LRD thermal overload relay, 80A/1000V, thermal setting range 63-80A, tripping class 10A, for protection of 3-phase motors 37kW@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
- Equipped with an adjustable dial spanning 63 to 80 Amps, this relay allows field technicians to calibrate thermal protection precisely to a motor's specific nameplate rating.
- Designed for a perfect mechanical layout, the LRD3363 mounts directly beneath standard TeSys Deca LC1D80 and LC1D95 3-pole contactors. This plug-and-play assembly completely eliminates extra interconnecting wires, reducing enclosure clutter, simplifying terminal torque steps, and saving significant installation time for commercial panel builders.
- This differential bimetallic device features built-in phase failure and load unbalance detection that rapidly trips the system if a power phase drops out. By promptly breaking the control circuit before winding heat can spike dangerously, it saves high-value three-phase industrial motors from terminal breakdown and catastrophic burnout.
- Featuring a clear, sealable protective cover, this relay physically secures your specific amp settings against accidental movement or unauthorized manipulation. Paired with explicit stop and manual/auto-reset buttons, a functional trip-test mechanism, and 1NO+1NC built-in auxiliary contacts, it delivers seamless fault signaling and safe, highly predictable maintenance workflows.
Documentation & Downloads
Specifications
Key Specifications
- Network Type
- DC || AC
- Relay Application
- motor protection
- Product Name
- TeSys LRD || TeSys Deca
- Range
- TeSys
- Product Compatibility
- LC1D80 || LC1D95
Thermal Protection Adjustment Range63-80 A
Product Or Component Typedifferential thermal overload relay
Thermal Overload Classclass 10A IEC 60947-4-1
[Ui] Rated Insulation Voltagepower circuit 1000 V IEC 60947-4-1 || power circuit 600 V CSA || power circuit 600 V UL
Device Short NameLRD
Complementary
- Network Frequency
- 0...400 Hz
- [Ith] Conventional Free Air Thermal Current
- 5 A signalling circuit
- Connections - Terminals
- power circuit screw clamp terminals 1 4-35 mm² flexible without cable end || power circuit screw clamp terminals 1 4-35 mm² flexible with cable end || power circuit screw clamp terminals 1 4-35 mm² solid without cable end || control circuit screw clamp terminals 2 1-2.5 mm² flexible without cable end || control circuit screw clamp terminals 2 1-2.5 mm² flexible with cable end || control circuit screw clamp terminals 2 1-2.5 mm² solid without cable end
- [Ue] Rated Operational Voltage
- 1000 V AC 0...400 Hz power circuit IEC 60947-4-1
- Net Weight
- 0.51 kg
- Permissible Current
- 0.72 A 500 V AC-15 signalling circuit || 0.06 A 440 V DC-13 signalling circuit
- Tightening Torque
- control circuit 1.7 N.m screw clamp terminals || power circuit 9 N.m screw clamp terminals
- Mounting Support
- plate, with specific accessories || rail, with specific accessories || under contactor
- Depth
- 115 mm
Height81 mm
Auxiliary Contact Composition1 NO + 1 NC
Phase Failure Sensitivitytripping current 130 % of Ir on two phase, the last one at 0
Associated Fuse Rating4 A gG for signalling circuit || 4 A BS for signalling circuit
[Uimp] Rated Impulse Withstand Voltage6 kV IEC 60947-1
Tripping Threshold1.14 +/- 0.06 Ir IEC 60947-4-1
Control Typered push-button stop || blue push-button reset
Width70 mm
Temperature Compensation-20-60 °C
Environment
- Product Certifications
- IEC || UL || CSA || CCC || EAC || ATEX INERIS || UKCA
- Standards
- EN/IEC 60947-4-1 || EN/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
- -20-60 °C without derating IEC 60947-4-1
- Ip Degree Of Protection
- IP20 IEC 60529
- Ambient Air Temperature For Storage
- -60-70 °C
Mechanical Robustnessvibrations6 Gn IEC 60068-2-6 || shocks15 Gn for 11 ms IEC 60068-2-7
Climatic WithstandIACS E10
Dielectric Strength2.2 kV 50 Hz IEC 60947-1
Flame RetardanceV1 UL 94
Contractual warranty
- Warranty
- 18 months
Offer Sustainability
- Rohs Exemption Information
- Yes
- Environmental Disclosure
- ENVPEP110101EN
- Toxic Heavy Metal Free
- Yes
- Reach Free Of Svhc
- Yes
- Circularity Profile
- ENVEOLI1101001
Mercury FreeYes
Sustainable Offer StatusGreen Premium product
Reach RegulationFree of Substances of Very High Concern above the threshold
China Rohs RegulationPro-active China RoHS declaration (out of China RoHS legal scope)
Eu Rohs DirectiveCompliant
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CAD
$308.69
/ 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
CAD$308.69/ EA
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