TeSys Deca thermal overload relays - 37...50 A - class 10A
LR3D350 is a TeSys LRD thermal overload relay from Schneider Electric to be used with a TeSys D contactor. It protects motors 22kW@400V thanks to a thermal range 37-50A , a tripping class 10A, for use with unbalanced loads. LR3D350 is a TeSys LRD thermal overload relay from Schneider Electric for direct mounting on TeSys D contactors. With a thermal setting range 37-50A and tripping class 10A, it protects unbalanced loads and motors 22kW@400V. It provides manual test & reset buttons, automatic reset, trip auxiliary contact and flag indicator. Available worldwide, it is multi-standards certified (IEC, UL, CSA, CCC, EAC, Marine) and Green Premium compliant (RoHs/Reach). Thermal overload protection relay, bimetallic type, for use with unbalanced loads (non differential). Direct mounting on the bottom terminals of a Tesys contactor LC1D40A-D65A to form a compact starter. Light and compact, 55mm wide. Temperature compensated for a good accuracy of the protection. Manual control with test & reset buttons, manual / automatic reset selector. Trip signaling with 1NO+1NC auxiliary contacts and trip flag indicator. Can be completed with terminal blocks for separate mounting (LAD7B, LAD96) and remote control devices (LAD703, LA7D03).
Brand: Schneider Electric
Add to Quote CatalogueSpecifications
| Network Type |
|
|---|---|
| Thermal Protection Adjustment Range | 37-50 A |
| Relay Application | motor protection |
| Product Or Component Type | non differential thermal overload relay |
| Product Name |
|
| Thermal Overload Class | class 10A IEC 60947-4-1 |
| Range |
|
| [Ui] Rated Insulation Voltage |
|
| Product Compatibility |
|
| Device Short Name | LR3D |
| Warranty | 18 months |
| Network Frequency | 0...400 Hz |
| Height | 70 mm |
| [Ith] Conventional Free Air Thermal Current | 5 A signalling circuit |
| Auxiliary Contact Composition | 1 NO + 1 NC |
| Connections - Terminals |
|
| Phase Failure Sensitivity | tripping current 130 % of Ir on two phase, the last one at 0 |
| [Ue] Rated Operational Voltage | 690 V AC 0...400 Hz power circuit IEC 60947-4-1 |
| Associated Fuse Rating |
|
| Net Weight | 0.375 kg |
| [Uimp] Rated Impulse Withstand Voltage | 6 kV |
| Permissible Current |
|
| Tripping Threshold | 1.14 +/- 0.06 Ir IEC 60947-4-1 |
| Tightening Torque |
|
| Control Type |
|
| Mounting Support |
|
| Width | 55 mm |
| Depth | 123 mm |
| Temperature Compensation | -20-60 °C |
| Rohs Exemption Information | Yes |
| Mercury Free | Yes |
| Environmental Disclosure | ENVPEP080405EN |
| Sustainable Offer Status | Green Premium product |
| Toxic Heavy Metal Free | Yes |
| Reach Regulation | Free of Substances of Very High Concern above the threshold |
| California Proposition 65 | WARNING: This product can expose you to chemicals including: Antimony oxide & Antimony trioxide, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov |
| Reach Free Of Svhc | Yes |
| Weee | The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins. |
| China Rohs Regulation | Pro-active China RoHS declaration (out of China RoHS legal scope) |
| Circularity Profile | ENVEOLI0804005_V1 |
| Eu Rohs Directive | Compliant |
| Product Certifications |
|
| Mechanical Robustness |
|
| Standards |
|
| Climatic Withstand | IACS E10 |
| Ambient Air Temperature For Operation | -20-60 °C without derating IEC 60947-4-1 |
| Dielectric Strength | 1.89 kV 50 Hz IEC 60947-1 |
| Ip Degree Of Protection | IP20 conforming to IEC 60529 |
| Flame Retardance | V1 conforming to UL 94 |
| Ambient Air Temperature For Storage | -60-70 °C |
Documents
- Spec Sheet
- Industrial Automation and Control Product Lines Brochure - 998-20256927_2019_Line_Card_GM (pdf)
- Square D Model 6 Intelligent Motor Control Centers Brochure - 8998BR0001 (pdf)
- TeSys Refresh Informational Guide - Brochure - 998-20803955_GMA-US (pdf)
- Digest Catalog 16: NEMA and Definite Purpose Contactors and Starters (SEP 2022) - 0100CT1901_SEC-16_SEP2022 (pdf)
- Digest Catalog 18: Contactors and Starters-IEC - 0100CT1901_SEC-18 (pdf)
- TeSys Catalogue - 2022 - Chapter B11 - Overload relays TeSys LRK, Deca, Giga, RM1, LT3 - B11+-+Overload+relays_EN+(web) (pdf)
- LRD3.., LRD3..3, LRD3..L, LRD3..L3, LR3D3.., LR3D3..3 - Everlink 3-pole thermal overload relays 18.5 to 37 kW - Instruction sheet - AAV37571-04 (pdf)
