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Schneider LR3D22 Thermal Overload Relay, TeSys Deca, 16 to 24 Amp
LR3D22 is a TeSys LRD thermal overload protection relay, bimetallic type, from Schneider Electric designed for direct mounting on TeSys D contactors to make a compact motor starter. With a thermal setting range 16-24A and a tripping class 10A, it protects unbalanced loads and motors 11kW@400V. It provides manual test and reset buttons, automatic reset, trip auxiliary contact and flag indicator. Direct mounting on the bottom terminals of a TeSys contactor LC1D25-D38 (to be ordered separately) to form a compact starter. Can be completed with terminal blocks for separate mounting (LAD7B, LAD96) and remote control devices (LAD703, LA7D03). Available worldwide, it is multi-standards certified (IEC, UL, CSA, CCC, EAC).
Specifications
| MPN | LR3D22 |
| Range | TeSys TeSys Deca |
| Relay Application | Motor protection |
| Product Compatibility | LC1D32 LC1D25 LC1D38 |
| Network Type | AC DC |
| Thermal Overload Class | Class 10A IEC 60947-4-1 |
| Thermal Protection Adjustment Range | 16...24 A |
| [Ui] Rated Insulation Voltage | Power circuit 600 V CSA Power circuit 600 V UL Power circuit 690 V IEC 60947-4-1 |
| Network Frequency | <= 400 Hz |
| Mounting Support | Under contactor Plate, with specific accessories Rail, with specific accessories |
| Tripping Threshold | 1.14 +/- 0.06 Ir IEC 60947-4-1 |
| Auxiliary Contact Composition | 1 NO + 1 NC |
| [Ith] Conventional Free Air Thermal Current | 5 A signaling circuit |
| Permissible Current | 1.5 A 240 V AC-15 signalling circuit 0.1 A 250 V DC-13 signalling circuit |
| [Ue] Rated Operational Voltage | 690 V AC 0...400 Hz power circuit IEC 60947-4-1 |
| Associated Fuse Rating | 4 A gG for signalling circuit 4 A BS for signalling circuit |
| [Uimp] Rated Impulse Withstand Voltage | 6 kV |
| Phase Failure Sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 |
| Control Type | Red push-button stop Blue push-button reset |
| Temperature Compensation | -4…140 °F (-20…60 °C) |
| Connections - Terminals | Control circuit screw clamp terminals 2 0.002…0.004 in² (1…2.5 mm²) flexible without cable end Control circuit screw clamp terminals 2 0.002…0.004 in² (1…2.5 mm²) flexible with cable end Control circuit screw clamp terminals 2 0.002…0.004 in² (1…2.5 mm²) solid without cable end Power circuit screw clamp terminals 1 0.002…0.02 in² (1.5…10 mm²) flexible without cable end Power circuit screw clamp terminals 1 0.002…0.006 in² (1…4 mm²) flexible with cable end Power circuit screw clamp terminals 1 0.002…0.009 in² (1…6 mm²) solid without cable end |
| Tightening Torque | Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Power circuit 22.1 lbf.in (2.5 N.m) screw clamp terminals |
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
Certifications
- IEC
- UL
- CSA
- CCC
- EAC
- BV
- RINA
- DNV-GL
- LROS (Lloyds register of shipping)
- ATEX INERIS
- UKCA
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