TeSys LRD thermal overload relays - 90...150 A - class 20
Description
TeSys LR9D electronic overload relay, 150A/1000V, thermal setting range 90-150A, tripping class 20, for protection of 3-phase motors 55-75kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, buttons for test, stop and reset, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by bolt terminals for bars or cables with lugs, it connects directly to the bottom terminals of 3-pole contactors LC1D115, D150. Mounting on DIN rail or screw fixing, separated from contactor, can be done without accessories. Multi-standards certified (IEC, UL, CSA, CCC, Marine), Green Premium compliant (RoHs/Reach).
Product Details
| [ue] Rated Operational Voltage | 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
|---|---|
| [ui] Rated Insulation Voltage | power circuit: 1000 V conforming to IEC 60947-4-1 |
| [uimp] Rated Impulse Withstand Voltage | 6 kV conforming to IEC 60947-1 |
| [us] Rated Supply Voltage | 24 V DC |
| Ambient Air Temperature for Operation | -20-60 °C without derating conforming to IEC 60947-4-1 |
| Ambient Air Temperature for Storage | -60-70 °C |
| Climatic Withstand | conforming to IACS E10 |
| Compatibility Code | LR9D |
| Control Type | red push-button: stop |
| Depth | 125 mm |
| Device Short Name | LR9D |
| Dielectric Strength | 1.89 kV at 50 Hz conforming to IEC 60947-1 |
| Height | 118 mm |
| Ip Degree of Protection | IP20 conforming to IEC 60529 |
| Mechanical Robustness | vibrations: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6 |
| Mounting Support | under contactor |
| Net Weight | 0.885 kg |
| Network Frequency | 50...60 Hz |
| Network Type | AC |
| Product Certifications | UL |
| Product Compatibility | NSX circuit breaker |
| Product Name | TeSys LRD |
| Product or Component Type | electronic thermal overload relay |
| Range | TeSys |
| Standards | EN/IEC 60947-4-1 |
| Tightening Torque | alarm circuit: 0.45 N.m - on screw clamp terminals |
| Width | 115 mm |
| Connections - Terminals | power circuit: bars |
| [ith] Conventional Free Air Thermal Current | 5 A for signalling circuit |
| Associated Fuse Rating | 4 A gG for signalling circuit |
| Auxiliary Contact Composition | 1 NO + 1 NC |
| Maximum Voltage Drop | <2.5 V closed state |
| Operating Altitude | <= 2000 m without derating |
| Phase Failure Sensitivity | tripping in 4 s +/- 20 % conforming to IEC 60947-4-1 |
| Relay Application | motor protection |
| Signalling Function | alarm |
| Supply Voltage Limits | 17-32 V |
| Switching Capacity in Ma | 0...150 mA |
| Temperature Compensation | -20-60 °C |
| Thermal Overload Class | class 20 conforming to IEC 60947-4-1 |
| Thermal Protection Adjustment Range | 90-150 A |
| Tripping Threshold | 1.05 +/- 0.06 In alarm conforming to IEC 60947-4-1 |