E O C R OCR

Description

Main
Range TeSys
Product name TeSys LT
Product or component type Electronic over current relay
Device short name LT47
Device application Protection
Relay application Locked rotor, mechanical jamming I > 3 x Isetting
Overload Imax > Isetting
Sensitivity to phase failure
[Us] rated supply voltage 200…240 V AC
Thermal protection adjustment range 3…30 A
[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
Complementary
Network frequency 50…60 Hz
Mounting support Rail
Tripping threshold 3…25 A
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
Auxiliary contact composition 1 NO + 1 NC
[Ith] conventional free air thermal
current
3 A for signalling circuit
Associated fuse rating 3 A gG for signalling circuit
3 A BS for signalling circuit
[Uimp] rated impulse withstand voltage 6 kV
Time range 0.5..30 s – control type D-time
0.3…10 s – control type O-time
Local signalling 1 LED (green)