Schneider Electric TeSys LR97D electronic overload relay for motor - 20...38 A - 200...240 V AC
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Schneider Electric TeSys LR97D electronic overload relay for motor - 20...38 A - 200...240 V AC
Incl. Tax
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Description
TeSys LR97D electronic overcurrent relay, 38A/690V, to be supplied with 200-240V AC, for protection of motors with a rated current 20-34A. It provides 3 dials to adjust the protection, LOAD (20-38A) for the overcurrent level, O-TIME (0.3-10sec) for the acceptable duration of the overcurrent, D-TIME (0.5-30sec) for the starting duration. In addition, the device trips when the current is higher than 3 x LOAD during more than 0.5sec in steady state and if there is a missing phase during more than 3sec. The settings include selectors for 1-phase/3-phase motors and manual/automatic reset, and the device has a reset button, a test/stop button, 2 LED indicators (Run/Trip), 2 auxiliary contacts 1NO/NC for fault signalling. Settings can be locked by sealing the transparent cover. For direct attachement to the bottom terminals of a 3-pole contactor LC1D25-D38, with screw clamp terminals on bottom, the separate mounting from the contactor is possible using the terminal block LAD7B106 (to be ordered separately). Multi-standards certified (IEC, UL, CSA, CCC, EAC), compliant RoHs/Reach.
Product Details
| Weight (in Kg) | 0.181 |
|---|---|
| Net weight | 0.172 kg |
| Quantity Per Set | set of 10 |
| [Us] rated supply voltage | 200...240 V AC |
| Product Or Component Type | electronic overcurrent relay |
| Protective Treatment | TH conforming to IEC 60068 |
| Reset | automatic reset 120 s fixed electrical by interruption of power supply for minimum 0.1 s manual reset |
| Tripping Threshold | 20...34 A |
| Network frequency | 50...60 Hz |
| Resistance To Radiated Fields | 10 V/m level 3 |
| Thermal Protection Adjustment Range | 20-38 A |
| [IP] Degree of Protection | IP20 conforming to IEC 60529 |
| Connections Terminals | control circuit: cable 1 x 1-25 mm²flexible with cable end power circuit: cable 1 x 2.5-10 mm²flexible with cable end power circuit: lug-clamp 1 x 1-6 mm²flexible without cable end power circuit: lug-clamp 1 x 2.5-10 mm²flexible with cable end control circuit: cable 1 x 1-25 mm²flexible without cable end control circuit: cable 2 x 1-25 mm²flexible without cable end control circuit: lug-clamp 1 x 1-25 mm²flexible with cable end control circuit: lug-clamp 1 x 1-25 mm²flexible without cable end control circuit: lug-clamp 2 x 1-25 mm²flexible with cable end control circuit: lug-clamp 2 x 1-25 mm²flexible without cable end control circuit: cable 2 x 1-25 mm² power circuit: cable 1 x 1-6 mm²flexible without cable end |
| Contacts Type and Composition | 1 C/O |
| [Uimp] Rated Impulse Wthstand Voltage | 6 kV |
| phase_failure_sensitivity | < 3 s |
| protection_type | BS fuse 3 A - for control circuit GB2 circuit breaker 3 A - for control circuit gG fuse 3 A - for control circuit |
| Ambient air temperature for operation | -25-60 °C conforming to IEC 60947-4-1 |
| Tightening Torque | control circuit: 0.6...1.2 N.m on lug-clamp power circuit: 2 N.m on cable |
| Standards | IEC 60947 IEC 60255-6 |
| Product Certifications | CSA GOST UL |
| [Ith] Conventional Free Air Thermal Current | 3 A for control circuit |
| [ui] Rated Insulation Voltage | power circuit: 600 V conforming to CSA power circuit: 600 V conforming to UL power circuit: 690 V conforming to IEC 60947-4-1 |
| Mounting support | direct on contactor rail |
| Fire Resistance | 850 °C conforming to IEC 60695-2-1 |
| Product Compatibility | LC1D25...D38 |
| Relay Application | overload Imax > Isetting sensitivity to phase failure locked rotor, mechanical jamming I > 3 x Isetting |
| Dielectric Strength | 2 V 50 Hz conforming to IEC 60255-5 |
| Disturbance Radiated/Conducted | 10 V conforming to EN 61000-4-6 class A conforming to EN 55011 |
| Maximum Power | 28 W at 110 V DC conforming to IEC 60947 28 W at 220 V DC conforming to IEC 60947 55 W at 24 V DC conforming to IEC 60947 55 W at 48 V DC conforming to IEC 60947 140 VA at 48 V AC conforming to IEC 60947 360 VA at 110 V AC conforming to IEC 60947 360 VA at 220 V AC conforming to IEC 60947 70 VA at 24 V AC conforming to IEC 60947 |
| Resistance to Electrostatic Discharge | 6 kV in indirect mode 8 kV in air |
| Resistance To Fast Transients | 2 kV |
| Shock Resistance | 15 gn 11 ms conforming to IEC 60068-2-7 |
| Time Range | 0.2...10 s - O-time knob 0.3...10 s - O-time knob 0.5..30 s - D-time knob |
| Device short name | LR97 |
| Depth | 67.5 mm |
| Ambient air temperature for storage | -30-80 °C |
| Height | 67.5 mm |
| width | 45 mm |
| Operating altitude | 2000 m |
| Compatibility code | LR97 |
| Surge Withstand | 6 kV conforming to IEC 61000-4-5 |
| Network type | AC |
| Signalling Function | 2 LEDs |
| Vibration Resistance | 4 gn conforming to IEC 60068-2-6 |
| [Ue] Rated Operational Voltage | 600 V AC 50/60 Hz for power circuit conforming to CSA 600 V AC 50/60 Hz for power circuit conforming to UL 690 V AC 50/60 Hz for power circuit conforming to IEC 60947-4-1 |
| Brand | Schneider Electric |