Schneider Electric LRD3503 TeSys Deca Thermal Overload Relay 37-50A Class 10A 1NO+1NC
Schneider Electric LRD3503 TeSys Deca Thermal Overload Relay 37-50A Class 10A 1NO+1NC
- MPN: LRD3503
- PPN: SCH-LRD3503
Spec sheet
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Description
TeSys LRD thermal overload relay, 50A/690V, thermal setting range 37-50A, tripping class 10A, for protection of 3-phase motors 22kW@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 EverLink BTR screw terminals , it connects directly to the bottom terminals of 3-pole contactors LC1D40A-D80A. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LAD96560 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, Marine), Green Premium compliant (RoHs/Reach).
Specifications
Environment
- Product Certifications
- IEC || UL || CSA || CCC || EAC || DNV-GL || RMRS || EU-RO MR || LROS (Lloyds register of shipping) || 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 Robustnessshocks15 Gn for 11 ms IEC 60068-2-7 || vibrations4 gn IEC 60068-2-6
Climatic WithstandIACS E10
Dielectric Strength1.89 kV 50 Hz IEC 60947-1
Flame RetardanceV1 UL 94
Contractual warranty
- Warranty
- 18 months
Offer Sustainability
- Rohs Exemption Information
- Yes
- Environmental Disclosure
- ENVPEP080405EN
- Toxic Heavy Metal Free
- Yes
- Reach Free Of Svhc
- Yes
- Circularity Profile
- ENVEOLI0804005_V1
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
Complementary
- Network Frequency
- 0...400 Hz
- [Ith] Conventional Free Air Thermal Current
- 5 A signalling circuit
- Connections - Terminals
- power circuit EverLink BTR screw connectors 1 1-35 mm² flexible without cable end || power circuit EverLink BTR screw connectors 1 1-35 mm² flexible with cable end || power circuit EverLink BTR screw connectors 1 1-35 mm² solid without cable end || control circuit spring terminals 1 1-2.5 mm² solid without cable end || control circuit spring terminals 1 1-2.5 mm² flexible without cable end
- [Ue] Rated Operational Voltage
- 690 V AC 0...400 Hz power circuit IEC 60947-4-1
- Net Weight
- 0.375 kg
- Permissible Current
- 0.95 A 380 V AC-15 signalling circuit || 0.06 A 440 V DC-13 signalling circuit
- Tightening Torque
- power circuit 5 N.m EverLink BTR screw connectors
- Mounting Support
- plate, with specific accessories || rail, with specific accessories || under contactor
- Depth
- 123 mm
Height70 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
Tripping Threshold1.14 +/- 0.06 Ir IEC 60947-4-1
Control Typered push-button stop || blue push-button reset
Width55 mm
Temperature Compensation-20-60 °C
Specifications
- Network Type
- AC || DC
- Relay Application
- motor protection
- Product Name
- TeSys LRD || TeSys Deca
- Range
- TeSys || TeSys Deca
- Product Compatibility
- LC1D50A || LC1D40A || LC1D65A
Thermal Protection Adjustment Range37-50 A
Product Or Component Typedifferential thermal overload relay
Thermal Overload Classclass 10A IEC 60947-4-1
[Ui] Rated Insulation Voltagepower circuit 600 V CSA || power circuit 600 V UL || power circuit 690 V IEC 60947-4-1
Device Short NameLRD
Downloads
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CAD$255.51/ EA
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