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Picture of Electronic over current relays, TeSys LT47, manual, 3 to 30A, 24VAC/DC
SKU:

LT4730BS

Electronic over current relays, TeSys LT47, manual, 3 to 30A, 24VAC/DC

$235.97
Electronic over current relays, TeSys LT47, manual, 3 to 30A, 24VAC/DC
  • The device has a reset button, a test/stop button, 2 LED indicators (Run/Trip)
  • Manual or automatic reset depending on model
  • Reduces the production loss and associated downtime
  • Simple setting and signaling features
  • Compact and easy integration into motor starter functions
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Manufacturer: Schneider Electric
Estimated Delivery Date: 28-Nov-2024
Instruction sheet
End of life manual
Catalogue
Product Page Link
Product Data Sheet
TeSys LR47 electronic overcurrent relay, 30A/690V, with manual reset, to be supplied with 24V AC/DC, 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.

Products specifications

Attribute nameAttribute value
Main
Device short nameLT47
Device applicationprotection
[Us] rated supply voltage24 V DC, 24 V AC
[Ui] rated insulation voltagepower circuit: 690 V AC conforming to IEC 60947-4-1, power circuit: 600 V AC conforming to UL, power circuit: 600 V AC conforming to CSA
RangeTeSys
Product nameTeSys LT
Product or component typeelectronic over current relay
Relay applicationoverload Imax > Isetting, locked rotor, mechanical jamming I > 3 x Isetting, sensitivity to phase failure
Thermal protection adjustment range3-30 A
Range of productTeSys LT electronic over current relays
Complementary
Depth77.2 mm
Width71 mm
Compatibility codeLT47
Mounting supportrail
Control typeelectrical: reset,  push-button: reset
Tightening torquesignalling circuit: 1.7 N.m M3.5
Tripping threshold3...25 A
Local signalling1 LED (red), 1 LED (green)
Connections - terminalssignalling circuit: screw clamp terminals 2 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 1 1-2.5 mm² - cable stiffness: flexible without cable end, signalling circuit: screw clamp terminals 1 1-2.5 mm² - cable stiffness: flexible with cable end
[Uimp] rated impulse withstand voltage6 kV
Net weight0.192 kg
Associated fuse rating3 A BS for signalling circuit, 3 A gG for signalling circuit
Electromagnetic compatibilityconducted HF disturbances: 10 V conforming to IEC 61000-4-6, surge withstand: 6 kV conforming to IEC 61000-4-5, immunity to fast transients: 2 kV conforming to IEC 61000-4-4, immunity to electromagnetic interference: 10 V/m conforming to IEC 61000-4-3, conducted emission: class A conforming to EN 55011, resistance to electrostatic discharge: 6 kV in direct mode conforming to IEC 61000-4-2, resistance to electrostatic discharge: 8 kV in open air conforming to IEC 61000-4-2
[Ith] conventional free air thermal current3 A for signalling circuit
Auxiliary contact composition1 NO + 1 NC
Height70.3 mm
Network frequency50...60 Hz
Time range0.3...10 s - control type O-time, 0.5..30 s - control type D-time
Environment
Operating altitude2000 m
Protective treatmentTH conforming to IEC 60068
Ambient air temperature for storage-30-80 °C
IP degree of protectionIP20 conforming to VDE 0106, IP20 conforming to IEC 60529
Dielectric strength2 kV at 50 Hz conforming to IEC 60255-5
Ambient air temperature for operation-25-60 °C without derating conforming to IEC 60947-4-1
StandardsIEC 60255-6, IEC 60947
Mechanical robustnessvibrations: 4 gn conforming to IEC 60068-2-6, shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
Product certificationsUL, CSA
Packing Units
Unit Type of Package 11
Number of Units in Package 11
Package 1 Height6.6 cm
Package 1 Width8.3 cm
Package 1 Length7.6 cm
Package 1 Weight193.0 g
Unit Type of Package 22
Number of Units in Package 216
Package 2 Height15.0 cm
Package 2 Width30.0 cm
Package 2 Length40.0 cm
Package 2 Weight3.543 kg

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