Datasheet

ManualsBrandsLEM ManualsCurrent SensorsCurrent Sensor 100 A Analog

090114/5

LEM reserves the right to carry out modications on its transducers, in order to improve them, without prior notice.

www.lem.com

Page 1/3

= 5 .. 150 A

Features

RMS output ●

Loop-powered 4-20mA current ●

output

Split-core type ●

Ø 16 mm sensing aperture for ●

non-contact measurement

Terminal output ●

Isolated plastic case recognized ●

according to UL 94-V0.

Advantages

High isolation between primary ●

and secondary circuits

Compact case ●

Cost-effective solution ●

Easy installation ●

Applications

Automation and Supervision ●

Current measurement for process

regulation by distributed PLCs

or remote control (e.g. SCADA

software)

Safety and Condition ●

Monitoring

Load monitoring for protection

systems and predictive

maintenance (e.g. conveyers,

pumps or HVAC motors)

Energy management ●

Convenient connection to power

consumption sub-meters

Application domain

Energy and Automation ●

400 500 600 700 800 900 1000

Max. Load Resistance (Ohm)

Supply Voltage (V)

Electrical data

Primary nominal current rms Output current Type

(A.t.Rms) I

OUT

(mA)

5 4-20 AT 5 B420L

10 4-20 AT 10 B420L

20 4-20 AT 20 B420L

50 4-20 AT 50 B420L

100 4-20 AT 100 B420L

150 4-20 AT 150 B420L

Load resistance, with V

= + 24 V DC

< 600 W

Supply voltage (loop-powered) + 20 .. 30 V DC

Output current limitation < 30 mA

Overload capability - continuous 120 % of I

- 1 min 150 % of I

Performance data

X Accuracy @ I

, T

= 25°C (excluding offset) < ± 2 % of I

Linearity error < ± 0.5 %

Electrical offset current, T

= 25°C 4 ± 0.2 mA

Response time to 90% of I

step < 100 m s

BW Frequency bandwidth 50/60 Hz

General data

Ambient operating temperature - 20 .. + 60 °C

Ambient storage temperature - 20 .. + 85 °C

m Mass 90 g

IPxx Protection degree IP40

AC Current transducer AT-B420L

Split-core transducer for the electronic measurement of AC waveform

currents, with galvanic isolation between the primary circuit (power) and the

secondary circuit (measurement). 4-20mA current output proportional to

the RMS value of the primary current.

= 5 .. 150 A

071115/4 www.lem.com

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

Page 1/3

Features

• RMS output

• Loop-powered 4-20mA current output

• Split-core type

• Ø 16 mm sensing aperture for non-

contact measurement

• Terminal output

• Isolated plastic case recognized

according to UL 94-V0.

Advantages

• High isolation between primary and

secondary circuits

• Compact case

• Cost-effective solution

• Easy installation

Applications

• Automation and Supervision

Current measurement for process

regulation by distributed PLCs or

remote control (e.g. SCADA

software)

• Security and Condition Monitoring

Load monitoring for protection

systems and predictive

maintenance (e.g. conveyers,

pumps or HVAC motors)

• Energy management

Convenient connection to power

consumption sub-meters

Application domain

• Energy and Automation

Note:

Max. Load Resistance vs. Supply Voltage

AC Current transducer AT-B420L

Split-core transducer for the electronic measurement of AC waveform

currents, with galvanic isolation between the primary circuit (power)

and the secondary circuit (measurement). 4-20 mA current output

proportional to the RMS value of the primary current.

Electrical data

Primary nominal Output current Type

current rms

(A.t.Rms) I

OUT

(mA)

5 4-20 AT 5 B420L

10 4-20 AT 10 B420L

20 4-20 AT 20 B420L

50 4-20 AT 50 B420L

100 4-20 AT 100 B420L

150 4-20 AT 150 B420L

Load resistance, with V

= + 24 V DC

< 600 W

Supply voltage (loop-powered) + 20 .. 30 V DC

Output current limitation < 30 mA

Overload capability - continuous 120 % of I

- 1 min 150 % of I

Performance data

X Accuracy @ I

, T

= 25°C (excluding offset) < ± 1.5 % of I

Linearity error < ± 0.5 %

Electrical offset current, T

= 25°C 4 ± 0.2 mA

Response time to 90% of I

step < 100 ms

BW Frequency bandwidth 50/60 Hz

General data

Ambient operating temperature - 20 .. + 60 °C

Ambient storage temperature - 20 .. + 85 °C

m Mass 90 g

IPxx Protection degree IP40

Note:

Max. Load Resistance vs. Supply Voltage

400 500 600 700 800 900 1000

Max. Load Resistance (Ohm)

Supply Voltage (V)

Electrical data

Primary nominal current rms Output current Type

(A.t.Rms) I

OUT

(mA)

5 4-20 AT 5 B420L

10 4-20 AT 10 B420L

20 4-20 AT 20 B420L

50 4-20 AT 50 B420L

100 4-20 AT 100 B420L

150 4-20 AT 150 B420L

Load resistance, with V

= + 24 V DC

< 600 W

Supply voltage (loop-powered) + 20 .. 30 V DC

Output current limitation < 30 mA

Overload capability - continuous 120 % of I

- 1 min 150 % of I

Performance data

X Accuracy @ I

, T

= 25°C (excluding offset) < ± 2 % of I

Linearity error < ± 0.5 %

Electrical offset current, T

= 25°C 4 ± 0.2 mA

Response time to 90% of I

step < 100 m s

BW Frequency bandwidth 50/60 Hz

General data

Ambient operating temperature - 20 .. + 60 °C

Ambient storage temperature - 20 .. + 85 °C

m Mass 90 g

IPxx Protection degree IP40

AC Current transducer AT-B420L

Split-core transducer for the electronic measurement of AC waveform

currents, with galvanic isolation between the primary circuit (power) and the

secondary circuit (measurement). 4-20mA current output proportional to

the RMS value of the primary current.

= 5 .. 150 A

071115/4 www.lem.com

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

Page 1/3

Features

• RMS output

• Loop-powered 4-20mA current output

• Split-core type

• Ø 16 mm sensing aperture for non-

contact measurement

• Terminal output

• Isolated plastic case recognized

according to UL 94-V0.

Advantages

• High isolation between primary and

secondary circuits

• Compact case

• Cost-effective solution

• Easy installation

Applications

• Automation and Supervision

Current measurement for process

regulation by distributed PLCs or

remote control (e.g. SCADA

software)

• Security and Condition Monitoring

Load monitoring for protection

systems and predictive

maintenance (e.g. conveyers,

pumps or HVAC motors)

• Energy management

Convenient connection to power

consumption sub-meters

Application domain

• Energy and Automation

Note:

Max. Load Resistance vs. Supply Voltage

Summary of content (3 pages)

PAGE 1
AC Current transducer AT-B420L AC Current transducer AT-B420L Split-core transducer the electronic measurement of ACofwaveform Split-core for transducer for the electronic measurement AC waveform currents, withcurrents, galvanic between thethe primary (power) withisolation galvanic isolation between primary circuit circuit (power) and the and the secondary circuit (measurement). 4-20current mA output current output to secondary circuit (measurement).
PAGE 2
Current Transducer AT-B420L Isolation characteristics Vb Vd dCp dCl CTI Rated isolation voltage rms 2) with IEC 61010-1 standards and following conditions: - Reinforced isolation - Over voltage category CAT III - Pollution degree PD2 - Heterogeneous field Rms voltage for AC isolation test 3), 50Hz, 1min. Creepage distance Clearance distance Comparative tracking index (Group I) 300 V 3.
PAGE 3
Dimensions AT-B420L (in mm. 1 mm = 0.0394 inch) Dimensions AT-B420L (in mm. 1 mm = 0.0394 inch) Bottom view Back view 18 18 16 Dimensions AT-B420L (in mm. 1 mm = 0.0394 inch) 23.5 16 4 4 16 40.5 + 28.5 4 + 4 1.5 23.5 31.5 51 (OUT) (+V) 22 K L N.P 18 18 51 28.5 1.5 31.5 16 + 40.5 2.5 + (OUT) (+V) 2-M3 terminal with cover 22 K L N.P Top view 2.