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Industrial current sensor LEM LT58-S7SP1 with compensated closed loop design and UL 94V0 insulated casing

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Industrial current sensor LEM LT58-S7SP1 with compensated closed loop design and UL 94V0 insulated casing

working temperature : -10℃~+70℃

Current Range : ±70A

Band Width : 100kHz

Bidirectional Current Detection : Support

Description : ±70A Current Sensors RoHS

Mfr. Part # : LT58-S7/SP1

Model Number : LT58-S7/SP1

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Product Overview

The LT 58-S7/SP1 is an insulated current sensor utilizing the Hall effect principle for measuring DC, AC, and pulsed currents. It offers high accuracy, excellent linearity, low temperature drift, and a wide frequency bandwidth, making it suitable for various industrial applications. The sensor features a closed-loop (compensated) design and is housed in a UL 94-V0 insulating casing.

Product Attributes

Brand: LEM
Origin: Beijing, China
Certifications: prEN 50178, UL 94-V0

Technical Specifications

Parameter	Description	Value	Unit
Product Name	Current Sensor	LT 58-S7/SP1
Primary Rated RMS Current (IPN)	Primary rated effective value current	50	A
Primary Current Measurement Range (IP)	Primary current, measurement range	0 .. 70	A
Measuring Resistance (RM)	@ 12 V	0 .. 140
Measuring Resistance (RM)	@ 15 V	0 .. 200
Secondary Rated RMS Current (ISN)	Secondary rated effective value current	50	mA
Conversion Ratio (KN)	Conversion rate	1 : 1000
Supply Voltage (VC)	Power voltage ( 5 %)	12 .. 15	V
Current Consumption (IC)	Current consumption @ 12V	28 + IS	mA
AC Insulation Test Voltage (Vd)	Effective voltage for AC insulation detection (50 Hz, 1 min)	6	kV
Overall Accuracy (XG)	Total accuracy @ IPN, TA = 25C	0.8	%
Linearity (L)	Linearity	< 0.2	%
Zero Offset Current (IO)	Zero offset current @ TA = 25C	0.2	mA
Magnetic Offset Current (IOM)	Magnetic offset current @ IP = 0, overload through IPN	0.1	mA
Offset Current Temperature Drift (IOT)	(- 10C .. + 70C)	0.35	mA
Offset Current Temperature Drift (IOT)		0.64	mA
Response Time (tra)	Reaction time @ 10 % of IP max	< 500	ns
Response Time (tr)	Response time @ 90 % of IP max	< 1	s
di/dt Following Accuracy	di/dt following accuracy	> 100	A/s
Bandwidth (f)	Bandwidth (- 3 dB)	DC .. 100	kHz
Operating Temperature (TA)	Environment operating temperature	- 10 .. + 70	C
Storage Temperature (TS)	Environment storage temperature	- 25 .. + 80	C
Secondary Coil Resistance (RS)	Secondary coil resistance @ TA = 70C	11
Mass	Mass	68	g
Primary Conductor Temperature Limit	Primary conductor temperature not to exceed	100	C

Advantages

Excellent accuracy
Good linearity
Low temperature drift
Optimal response time
Wide frequency bandwidth
No insertion loss
Strong immunity to interference
Current overload capability

Applications

AC variable frequency drives, servo motors
DC motor traction, static converters
Battery power supplies
Uninterruptible Power Supplies (UPS)
Switch Mode Power Supplies (SMPS)
Welding machine power supplies

Mechanical Features

Natural tolerance: 0.5 mm
Fastening points: 2 holes 5.4 mm
Primary aperture: 20 mm
Secondary connection: Clamp terminals

Notes

IS is positive when flowing in the direction of the arrow on IP.
Dynamic performance (di/dt and response time) is optimal when the busbar completely fills the primary aperture.
This module is a standard sensor. For different applications (supply voltage, turns ratio, single-phase measurement, etc.), please contact us.

2504271738_LEM-LT58-S7-SP1_C454769.pdf

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Industrial current sensor LEM LT58-S7SP1 with compensated closed loop design and UL 94V0 insulated casing Images

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