TeSys LT47 electronic over current relays - manual - 3...30 A - 200...240 V AC
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TeSys LT47 electronic over current relays - manual - 3...30 A - 200...240 V AC
Description
TeSys LR47 electronic overcurrent relay, 30A/690V, with manual reset, to be supplied with 200-240V AC, for protection of motors with a rated current 3-25A. It provides 3 dials to adjust the protection, LOAD (3-30A) 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 there is a missing phase during more than O-TIME. The device has a reset button, a test/stop button, 2 LED indicators (Run/Trip), 2 auxiliary contacts 1NO+1NC for fault signalling. Settings can be locked by sealing the transparent cover. DIN rail mounting, without power terminals (currents monitored by 2 current transformers crossed by the motor cables). Multi standards certified (IEC, UL, CSA, CCC, EAC), it conforms to RoHS/REACh regulation.
Product Details
| Weight (in Kg) | 0.201 |
|---|---|
| Net weight | 0.192 kg |
| [Us] rated supply voltage | 200...240 V AC |
| Product Or Component Type | electronic over current relay |
| Control Type | push-button: reset electrical: reset |
| Protective Treatment | TH conforming to IEC 60068 |
| Tripping Threshold | 3...25 A |
| Network frequency | 50...60 Hz |
| Auxiliary Contact Composition | 1 NO + 1 NC |
| Thermal Protection Adjustment Range | 3-30 A |
| [IP] Degree of Protection | IP20 conforming to IEC 60529 IP20 conforming to VDE 0106 |
| Connections Terminals | signalling circuit: screw clamp terminals 1 1-2.5 mm² - cable stiffness: flexible with cable end signalling circuit: screw clamp terminals 1 1-2.5 mm² - cable stiffness: flexible without cable end signalling circuit: screw clamp terminals 2 1-2.5 mm² - cable stiffness: flexible with cable end signalling circuit: screw clamp terminals 2 1-2.5 mm² - cable stiffness: flexible without cable end |
| [Uimp] Rated Impulse Wthstand Voltage | 6 kV |
| Ambient air temperature for operation | -25-60 °C without derating conforming to IEC 60947-4-1 |
| Range of Product | TeSys LT electronic over current relays |
| Tightening Torque | signalling circuit: 1.7 N.m M3.5 |
| Standards | IEC 60255-6 IEC 60947 |
| Product Certifications | UL CSA |
| Mechanical Robustness | shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7 vibrations: 4 gn conforming to IEC 60068-2-6 |
| [Ith] Conventional Free Air Thermal Current | 3 A for signalling circuit |
| [ui] Rated Insulation Voltage | power circuit: 600 V AC conforming to CSA power circuit: 600 V AC conforming to UL power circuit: 690 V AC conforming to IEC 60947-4-1 |
| Associated Fuse Rating | 3 A gG for signalling circuit 3 A BS for signalling circuit |
| Mounting support | rail |
| Local Signalling | 1 LED (green) 1 LED (red) |
| Electromagnetic Compatibility | resistance to electrostatic discharge: 8 kV in open air conforming to IEC 61000-4-2 resistance to electrostatic discharge: 6 kV in direct mode conforming to IEC 61000-4-2 conducted emission: class A conforming to EN 55011 immunity to electromagnetic interference: 10 V/m conforming to IEC 61000-4-3 immunity to fast transients: 2 kV conforming to IEC 61000-4-4 surge withstand: 6 kV conforming to IEC 61000-4-5 conducted HF disturbances: 10 V conforming to IEC 61000-4-6 |
| Relay Application | locked rotor, mechanical jamming I > 3 x Isetting overload Imax > Isetting sensitivity to phase failure |
| Dielectric Strength | 2 kV at 50 Hz conforming to IEC 60255-5 |
| Time Range | 0.5..30 s - control type D-time 0.3...10 s - control type O-time |
| Device short name | LT47 |
| Depth | 77.2 mm |
| Ambient air temperature for storage | -30-80 °C |
| Height | 70.3 mm |
| width | 71 mm |
| Operating altitude | 2000 m |
| Compatibility code | LT47 |
| Device Application | protection |
| Brand | Schneider Electric |
| Height | 7 |
| Length | 8.7 |
| Width | 7.8 |