ريليه حماية حرارية شنايدر LRD350 بمدى 37–50 أمبير فئة فصل 10A
أرسل طلب عرض السعر، وسيزوّدك فريقنا بعرض يؤكد السعر والتوفر.
Schneider Electric LRD350 is a TeSys LRD Class 10A thermal overload relay with an adjustable 37–50A range for motor protection. It includes phase-failure sensitivity, a 1NO+1NC signalling pair, test/stop controls and selectable manual or automatic reset. It mounts beneath compatible LC1D40A, LC1D50A and LC1D65A contactors; separate rail or plate mounting requires the appropriate accessory. Short-circuit protection and the contactor are selected separately.
أرسل طلب عرض السعر، وسيزوّدك فريقنا بعرض يؤكد السعر والتوفر.
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| Model | LRD350 |
|---|---|
| Series / type | TeSys LRD differential thermal overload relay |
| Adjustment range | 37–50A |
| Trip class | Class 10A, IEC 60947-4-1 |
| Application | Motor overload and phase-failure protection |
| Compatible contactors | LC1D40A, LC1D50A and LC1D65A |
| Tripping threshold | 1.14 ±0.06 × Ir, IEC 60947-4-1 |
| Phase-failure response | Trip at 130% of Ir in two phases with the third phase at zero |
| Auxiliary contacts | 1NO (97–98) + 1NC (95–96) |
| Signalling thermal current (Ith) | 5A; utilization-specific switching rating applies |
| Reset modes | Manual or automatic, selected to suit the control circuit; automatic reset can allow restart |
| Controls | Test, stop and reset |
| Mounting | Under contactor; rail/plate mounting with specific accessories |
| Power operational voltage (Ue) | 690VAC, manufacturer network-frequency range 0–400Hz |
| Network | AC/DC; manufacturer network-frequency range 0–400Hz |
| Power insulation voltage (Ui) | 690V IEC; 600V UL/CSA |
| Impulse withstand (Uimp) | 6kV |
| Temperature compensation | −20 to +60°C |
| Protection degree | IP20, IEC 60529 |
| Operating ambient | −20 to +60°C without derating |
| Storage ambient | −60 to +70°C |
| Signalling conductors | Two 1–2.5mm² conductors: solid or flexible with/without cable ends |
| Signalling terminal torque | 1.7Nm |
| Standards | EN/IEC 60947-4-1 and EN/IEC 60947-5-1 |
| Signalling utilization ratings | 0.95A at 380VAC AC-15; 0.06A at 440VDC DC-13 |
| Associated signalling fuse | 4A gG or 4A BS |
| Power terminals | EverLink BTR; single 1–35mm² conductor per datasheet |
| Power terminal torque | 5Nm for 1–25mm² single or paired conductors; 8Nm for 35mm² or mixed 1–25mm² + 35mm² per installation sheet |
| Power / signalling wire stripping | 16mm / 10mm per installation sheet |
| Mounting dimensions | 55mm width; use S1B31092-02 drawing for the selected contactor-mounted or separate-mounted assembly |
| Net weight | 375g |
Schneider TeSys LRD LRD350 37–50A Class 10A Thermal Overload Relay
Schneider Electric LRD350 is a TeSys LRD Class 10A thermal overload relay with an adjustable 37–50A range for motor protection. It includes phase-failure sensitivity, a 1NO+1NC signalling pair, test/stop controls and selectable manual or automatic reset. It mounts beneath compatible LC1D40A, LC1D50A and LC1D65A contactors; separate rail or plate mounting requires the appropriate accessory. Short-circuit protection and the contactor are selected separately.
Key specifications
- Model: LRD350
- Series / type: TeSys LRD differential thermal overload relay
- Adjustment range: 37–50A
- Trip class: Class 10A, IEC 60947-4-1
- Application: Motor overload and phase-failure protection
- Compatible contactors: LC1D40A, LC1D50A and LC1D65A
- Tripping threshold: 1.14 ±0.06 × Ir, IEC 60947-4-1
- Phase-failure response: Trip at 130% of Ir in two phases with the third phase at zero
- Auxiliary contacts: 1NO (97–98) + 1NC (95–96)
- Signalling thermal current (Ith): 5A; utilization-specific switching rating applies
- Reset modes: Manual or automatic, selected to suit the control circuit; automatic reset can allow restart
- Controls: Test, stop and reset
- Mounting: Under contactor; rail/plate mounting with specific accessories
- Power operational voltage (Ue): 690VAC, manufacturer network-frequency range 0–400Hz
- Network: AC/DC; manufacturer network-frequency range 0–400Hz
- Power insulation voltage (Ui): 690V IEC; 600V UL/CSA
- Impulse withstand (Uimp): 6kV
- Temperature compensation: −20 to +60°C
- Protection degree: IP20, IEC 60529
- Operating ambient: −20 to +60°C without derating
- Storage ambient: −60 to +70°C
- Signalling conductors: Two 1–2.5mm² conductors: solid or flexible with/without cable ends
- Signalling terminal torque: 1.7Nm
- Standards: EN/IEC 60947-4-1 and EN/IEC 60947-5-1
- Signalling utilization ratings: 0.95A at 380VAC AC-15; 0.06A at 440VDC DC-13
- Associated signalling fuse: 4A gG or 4A BS
- Power terminals: EverLink BTR; single 1–35mm² conductor per datasheet
- Power terminal torque: 5Nm for 1–25mm² single or paired conductors; 8Nm for 35mm² or mixed 1–25mm² + 35mm² per installation sheet
- Power / signalling wire stripping: 16mm / 10mm per installation sheet
- Mounting dimensions: 55mm width; use S1B31092-02 drawing for the selected contactor-mounted or separate-mounted assembly
- Net weight: 375g
أرسل طلب عرض السعر، وسيزوّدك فريقنا بعرض يؤكد السعر والتوفر.
| Model | LRD350 |
|---|---|
| Series / type | TeSys LRD differential thermal overload relay |
| Adjustment range | 37–50A |
| Trip class | Class 10A, IEC 60947-4-1 |
| Application | Motor overload and phase-failure protection |
| Compatible contactors | LC1D40A, LC1D50A and LC1D65A |
| Tripping threshold | 1.14 ±0.06 × Ir, IEC 60947-4-1 |
| Phase-failure response | Trip at 130% of Ir in two phases with the third phase at zero |
| Auxiliary contacts | 1NO (97–98) + 1NC (95–96) |
| Signalling thermal current (Ith) | 5A; utilization-specific switching rating applies |
| Reset modes | Manual or automatic, selected to suit the control circuit; automatic reset can allow restart |
| Controls | Test, stop and reset |
| Mounting | Under contactor; rail/plate mounting with specific accessories |
| Power operational voltage (Ue) | 690VAC, manufacturer network-frequency range 0–400Hz |
| Network | AC/DC; manufacturer network-frequency range 0–400Hz |
| Power insulation voltage (Ui) | 690V IEC; 600V UL/CSA |
| Impulse withstand (Uimp) | 6kV |
| Temperature compensation | −20 to +60°C |
| Protection degree | IP20, IEC 60529 |
| Operating ambient | −20 to +60°C without derating |
| Storage ambient | −60 to +70°C |
| Signalling conductors | Two 1–2.5mm² conductors: solid or flexible with/without cable ends |
| Signalling terminal torque | 1.7Nm |
| Standards | EN/IEC 60947-4-1 and EN/IEC 60947-5-1 |
| Signalling utilization ratings | 0.95A at 380VAC AC-15; 0.06A at 440VDC DC-13 |
| Associated signalling fuse | 4A gG or 4A BS |
| Power terminals | EverLink BTR; single 1–35mm² conductor per datasheet |
| Power terminal torque | 5Nm for 1–25mm² single or paired conductors; 8Nm for 35mm² or mixed 1–25mm² + 35mm² per installation sheet |
| Power / signalling wire stripping | 16mm / 10mm per installation sheet |
| Mounting dimensions | 55mm width; use S1B31092-02 drawing for the selected contactor-mounted or separate-mounted assembly |
| Net weight | 375g |