Current Transducer LAH 100-P

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

Electrical data

IP N = 100 AFeatures

IP N Primary nominal RMS current						
100		AIP M Primary current, measuring range 1)					0 ... ±160
A
RM Measuring resistance @ 						TA = 70 °C
TA = 85 °C							RM minRM max RM minRM max
with ±12 V@ IP N [±A DC]
063		057 Ω		@ IP N [A RMS] 2)01105Ω
with ±15 V@ IP N [±A DC]
20 12045 114 Ω		@ IP N [A RMS] 2)
20 51
45 45 Ω		@ IP < IP N 3)
IS N Secondary nominal RMS current						50		mA
NP/NS Turns ratio							1 : 2000
UC Supply voltage (±5 %)							±12 ... 15VICCurrent consumption							10 (@ ±15 V) + IS mA

Accuracy - Dynamic performance data
εtot
Total error 4) @ IP N, TA = 25 °C						±0.25		εLLinearity error							< 0.15										TypMax
IO
Offset current referred to primary @ TA = 25 °C			
±300
IO
Offset current referred to secondary @ TA = 25 °C		 ±0.15
IO M Magnetic offset current @ IP = 0, referred to secondaryand specified RM, after an overload of 5 × IP N		 ±0.10 ±0.15
IO T Temperature variation of IO, referred to secondary				 0 °C ... +70 °C±0.10 ±0.40		
‒25 °C ... +85 °C ±0.10 ±0.50
tD 10 Delay time to 10 % of the final output value for IP N step 5) < 200		tD 90 Delay time to 90 % of the final output value for IP N step 5) < 500		
BW Frequency bandwidth (‒1 dB)						DC ... 200%%mA
mA
mA
mAmA
nsnskHzGeneral dataTAAmbient operating temperature						TA st Ambient storage temperature						RSResistance of secondary winding		 @ TA = 70 °C				@ TA = 85 °CmMass							Standard							Notes: 1) For 10 s, with RM ≤ 25 Ω (UC = ±15 V)2)		
50 Hz Sinusoidal3)		
The measuring resistance RM min may be lower(see “LAH Technical Information” leaflet)4)		
Without IO & IO M
5)
For a di/dt = 200 A/µs.		

‒25 ... +85‒40 ... +90115
12124EN 50178: 1997°C°CΩΩg● Closed loop (compensated)current transducer using the Halleffect● Printed circuit board mounting● Insulating plastic case recognizedaccording to UL 94-V0.

Advantages● Excellent accuracy● Very good linearity● Low temperature drift● Optimized delay time
● Wide frequency bandwidth● No insertion losses● High immunity to externalinterference● Current overload capability.

Applications● AC variable speed drives andservo motor drives● Static converters for DC motordrives● Battery supplied applications● Uninterruptible Power Supplies(UPS)● Switched Mode Power Supplies(SMPS)● Power supplies for welding
applications.

Application domain● Industrial.

N° 97.34.34.000.0

23May2023/Version 15

LEM reserves the right to carry out modifications on its transducers,in order to improve them.

LEM International SA
Route du Nant-d’Avril, 152
1217 Meyrinwww.lem.com

Current Transducer LAH 100-P
Isolation characteristics
RMS voltage for AC insulation test, 50/60 Hz, 1 min		
Impulse withstand voltage 1.2/50 µs						

512kV
kV

Ut
Partial discharge RMS test voltage (qm< 10 pC)												dCp Creepage distance 1)								dCI Clearance 1)								CTI Comparative tracking index (group IIIa)				

>2
Min
11.75
11.75
175kV

UdUNimmmm

Note: 1) On PCB with soldering pattern UTEC93-703.

Applications examples
According to EN 50178 and IEC 61010-1 standards and following conditions:● Over voltage category OV 3
● Pollution degree PD2● Non-uniform field
EN 50178

IEC 61010-1

Rated insulation voltage

Nominal voltage

Basic insulation

1000 V

1000 V

Reinforced insulation

500 V

500 V

dCp, dCI, UNi

SafetyThis transducer must be used in limited-energy secondary circuits according toIEC 61010-1.

This transducer must be used in electric/electronic equipment with respect toapplicable 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. Main supply must be able to bedisconnected.

23May2023/Version 15

LEM reserves the right to carry out modifications on its transducers,in order to improve them.

LEM International SA
Route du Nant-d’Avril, 152
1217 Meyrinwww.lem.com

Dimensions LAH 100-P (in mm)

dCI

dCp

11.75

11.75

Connection
ISIPRM

0V+UC-UC

Numberof primary
turns

1

Primary current

IP N [ A ]nominalmaximum
IP [ A ]100

160

Nominaloutput currrent

Turns
ratio

Primary
resistancePrimary insertion
inductance

IS N [ mA ]NP/NS

RP [ mΩ ]LP [ µH ]50

1 : 2000

0.08

0.007

Mechanical characteristics● General tolerance		● Fastening & connection of primary
Recommended PCB hole		● Fastening & connection of secondary
Recommended PCB hole		

23May2023/Version 15Remarks±0.2 mm
6 pins 1.4 x 1 mm
2 mm
3 pins 0.7 x 0.6 mm
1.2 mm● IS is positive when IP flows from terminals “IN” toterminals “OUT”.
● The jumper temperature and PCB should not exceed 100 °C.
● This is a standard model. For different versions (supplyvoltages, turns ratios, unidirectional measurements...),
please contact us.

LEM reserves the right to carry out modifications on its transducers,in order to improve them.

LEM International SA
Route du Nant-d’Avril, 1521217 Meyrinwww.lem.com