Closed loop Hall effect current transducer LEM LA200-P for industrial DC AC and pulsed current applications

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Product Description

Product Overview

The LEM LA 200-P is a closed-loop Hall effect current transducer designed for the electronic measurement of DC, AC, and pulsed currents with galvanic separation between primary and secondary circuits. It offers excellent accuracy, linearity, low temperature drift, and a wide frequency bandwidth, making it suitable for industrial applications such as AC variable speed drives, static converters, UPS, and power supplies for welding.

Product Attributes

Brand: LEM
Certifications: UL 94-V0, EN 50178, IEC 61010-1
Application Domain: Industrial

Technical Specifications

Specification	Value	Notes
Primary Nominal Current (IPN)	200 A rms
Primary Current Measuring Range (IPM)	0 .. 300 A
Secondary Nominal Current (ISN)	100 mA rms
Conversion Ratio (KN)	1 : 2000
Supply Voltage (UC)	12 .. 15 V ( 5 %)
Current Consumption (IC)	16 mA (@ 15 V) + IS
Accuracy @ IPN, TA = 25C, 15 V	0.40 %
Accuracy @ IPN, TA = 25C, 12 .. 15 V	0.65 %
Linearity Error (L)		Typ Max
Offset Current (IO) @ IP = 0, TA = 25C	0.20 mA
Magnetic Offset Current (IOM)	0.25 mA	@ IP = 0 and specified RM, after an overload of 3 x IPN
Temperature Variation of IO (0C .. +70C)	0.10 .. 0.25 mA
Temperature Variation of IO (-40C .. +85C)	0.15 .. 0.55 mA
Reaction Time (tra)
Step Response Time (tr) to 90% of IPN		With a di/dt of 100 A/s
di/dt Accurately Followed	> 200 A/s	Primary conductor best filling hole and/or return above transducer
Frequency Bandwidth (- 1 dB) (BW)	DC .. 100 kHz
Ambient Operating Temperature (TA)	- 40 .. + 85 C
Ambient Storage Temperature (TS)	- 40 .. + 90 C
Secondary Coil Resistance (RS) @ TA = 70C	76
Secondary Coil Resistance (RS) @ TA = 85C	80
Mass	40 g
Rms Voltage for AC Insulation Test (Ud)	3 kV	50 Hz, 1 min
Impulse Withstand Voltage (W)	7 kV	1.2/50 s
Partial Discharge Extinction Voltage (Ue)	> 1.8 kV rms	@ 10 pc
Creepage Distance (dCp)	6.7 mm
Clearance (dCI)	6.7 mm
Comparative Tracking Index (CTI)	175	(group IIIa)
Rated Insulation Voltage (EN 50178)	600 V	Basic insulation
Rated Insulation Voltage (EN 50178)	300 V	Reinforced insulation
Nominal Voltage (IEC 61010-1)	600 V	Basic insulation
Nominal Voltage (IEC 61010-1)	300 V	Reinforced insulation
Primary Through-hole	17 x 11 mm
Secondary Connection	4 pins 0.63 x 0.56 mm	Recommended PCB hole 0.9 mm
Supplementary Fastening	2 holes 1.75 mm	Recommended PCB hole 2.4 mm
Recommended Screws	PT KA 22 x 6	Recommended fastening torque 0.5 Nm