LTC 600-SF

## **Current Transducer LTC 600-SF** 

## _I_ **= 500 A** P N 

For the electronic measurement of currents: DC, AC, pulsed..., with galvanic separation between the primary circuit and the secondary circuit. 

## ~~**Electrical data**~~ 

|_I_P N|Primary nominal RMS current||500|||A|
|---|---|---|---|---|---|---|
|_I_P M|Primary current, measuring range|@ ±24 V|0 ... ±1500|||A|
|_Î_P max|Primary withstand peak current (maximum)||10/10|||kA/ms|
|_R_M|Measuring resistance||_R_M min|_R_M max|||
||with ±15 V<br>@ ±500  Amax||0||70|Ω|
||@ ±1200 Amax||0||5|Ω|
||with ±24 V<br>@ ±500  Amax||0|150||Ω|
||@ ±1500 Amax||0||20|Ω|
|_I_S N|Secondary nominal RMS current||100|||mA|
|_N_P/_N_S|Turns ratio||1 : 5000||||
|_U_C|Supply voltage (±5 %)||±15 ...|24||V|
|_I_C|Current consumption||< 32(@ ±24 V)+|||_I_SmA|
|~~**Accuracy - Dynamic performance data**~~|||||||
|_ε_tot|Total error @_I_P N,_T_A= 25 °C||< ±0.7|||%|
||@_I_P N,_T_A= −40 °C ... +85 °C||< ±1.6|||%|
|_ε_L|Linearity error||< 0.1|||%|
||||Max||||
|_I_O|Ofset current @_I_P= 0,_T_A= 25 °C||±0.5|||mA|
|_I_O_T_|Temperature variation of_I_O|−40 °C ... +85 °C|±1|||mA|
|_t_D 90|Delay time to 90 % of the fnal output value for_I_P Nstep||1)< 1|||µs|
|_BW_|Frequency bandwidth (−1 dB)||DC ... 100|||kHz|
|~~**General data**~~|||||||
|_T_A|Ambient operating temperature||−40 ...|+85||°C|
|_T_A st|Ambient storage temperature||−45 ...|+90||°C|
|_R_S|Resistance of secondary winding @_T_A= 85 °C||44|||Ω|
|_m_|Mass||780|||g|
||Standards||EN 50155: 20172)||||
||||UL 508:||2010||
||||EN 50121-3-2: 2016||||



## **Features** 

- ●Closed loop (compensated) current transducer using the Hall effect 

- ●Insulating plastic case recognized according to UL 94-V0. 

## **Advantages** 

- ●Excellent accuracy 

- ●Very good linearity 

- ●Low temperature drift 

- ●Optimized response time 

- ●Wide frequency bandwidth 

- ●No insertion losses 

- ●High immunity to external interference 

- ●Current overload capability. 

## **Applications** 

- ●Single or three phase inverters 

- ●Propulsion and braking choppers 

- ●Propulsion converters 

- ●Auxiliary converters 

- ●Battery chargers. 

## **Application Domain** 

- ●Railway (fixed installations and onboard). 

Notes: 1) For a d _i_ /d _t_ = 100 A/µs 

- 2) Additional information available on request. 

N° 97.A2.52.000.0 

Page 1/3 LEM International SA Chemin des Aulx 8 1228 PLAN-LES-OUATES Switzerland www.lem.com 

16August2021/version 3 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice 

## **Current Transducer LTC 600-SF** 

## ~~**Insulation coordination**~~ 

_U_ d RMS voltage for AC insulation test, 50 Hz, 1 min 13.4[1)] kV 1.5[2)] kV _U_ t Partial discharge RMS test voltage ( _q_ m < 10 pC) > 2.8[3)] kV Min _d_ Cp Creepage distance 66.7 mm _d_ CI Clearance 45.9 mm _CTI_ Comparative tracking index (group I) 600 

Notes:[1)] Between primary and secondary + shield 

- 2) Between secondary and shield 

- 3) Test carried out with a busbar ⌀ 40 mm centred in the through-hole. 

## **Safety** 

This transducer must be used in limited-energy secondary circuits according to IEC 61010-1. 

This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the manufacturer’s operating instructions. 

Caution, risk of electrical shock 

When operating the transducer, certain parts of the module can carry hazardous voltage (eg. primary busbar, power supply). 

Ignoring this warning can lead to injury and/or cause serious damage. 

This transducer is a build-in device, whose conducting parts must be inaccessible after installation. A protective housing or additional shield could be used. Main supply must be able to be disconnected. 

Page 2/3 LEM International SA Chemin des Aulx 8 1228 PLAN-LES-OUATES Switzerland www.lem.com 

LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice 

16August2021/version 3 

## **Dimensions LTC 600-SF** (in mm) 

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## ~~**Mechanical characteristics**~~ 

- ●General tolerance 

±1 mm 

- ●Transducer fastening 

4 slots ⌀ 6.5 mm 4 M6 steel screws 

Recommended fastening torque 4.7 N·m 

- ●Primary through-hole ⌀ 42 mm ●Connection of secondary 4 M5 threaded studs Recommended fastening torque 2.2 N·m 

   - Faston 6.3 × 0.8 mm 

## **Remarks** 

- _I_ S is positi ~~ve~~ when _I_ P flow ~~s~~ in the direction of the arrow. 

- ●Temperature of the primary conductor should not exceed 100 °C. 

- ●Installation of the transducer must be done unless otherwise specified on the datasheet, according to LEM Transducer Generic Mounting Rules. Please refer to LEM document N°ANE120504 available on our Web site: **.** 

- **https://www.lem.com/en/file/3137/download/** 

- ●Dynamic performances ( d _i_ / d _t_ and delay time) are best with a single bar completely filling the primary hole. 

- ●This is a standard model. For different versions (supply voltages, turns ratios, unidirectional measurements...), please contact us. 

Page 3/3 

16August2021/version 3 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice 

LEM International SA Chemin des Aulx 8 1228 PLAN-LES-OUATES Switzerland www.lem.com