APR-B420L_07 LEM | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 3
Technical content
Features
- VFD and SCR waveforms current measurement
- True RMS output
- Split core type
- Loop powered 4-20mA current output
- DIN mounting & Panel mounting
- Eliminates insertion loss
- Switch selectable ranges
- Isolated plastic case recognized according to UL94-V0. Advantages
- Large aperture for cable up to Ø18mm
- High isolation between primary and secondary circuits
- Easy installation
Applications
- VFD Controlled Loads: VFD output indicates how the motor and attached load are operating.
- SCR Controlled Loads: Acurate measurement of phase angle fired or burst fired (time proportioned) SCRs. Current measurement gives faster response than temperature measurement.
- Switching Power Supplies and Electronic Ballasts: True RMS sensing is the most accurate way to measure power supply or ballast input power. Application domain
- Energy and Automation 070125/4 www.lem.comLEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. Page 1/3
Current Transducer APR-B420L Isolation characteristics Vb Rated isolation voltage rms 300 V with IEC 61010-1 standards and following conditions : - Single insulation - Over voltage category CAT III - Pollution degree PD2 - Heterogeneous field Vd Rms voltage for AC isolation test, 50 Hz, 1min 5 kV Ve Partial discharge extinction voltage rms @ 10 pC 1.5 kV Vw Impulse withstand voltage 1.2/50 µs 6.1 kV If insulated cable is used for the primary circuit, the voltage category could be improved with the following table : Cable insulation (primary) Category HAR 05 600V CAT III HAR 07 1000V CAT III dCp Creepage distance 5.5 mm dCl Clearance distance 5.5 mm CTI Comparative tracking index (Group I) 600 070125/4 www.lem.comLEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. Page 2/3 Safety 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. Installation and maintenance should be done with main power supply disconnected. The operator must have an accreditation to install this material. Caution! Risk of electrical shock When operating the transducer, certain parts of the module can carry hazardous voltage (e.g. primary conductor, power supply). Ignoring this warning can lead to injury and/or cause serious damage. The user must take care of all protection guarantee against electrical shock. This transducer is a built-in device, whose conducting parts must be inaccessible after installation. A protective housing or additional shield could be used.
Dimensions AP(R)-B420L (unit : mm, 1mm = 0.0394 inch) Connections
- Wires up to ∅ 2 mm
- Female connector provided (spring terminal blocks)
- User-friendly spring-cage connection for no-tool direct conductor connection Mechanical characteristics
- General tolerance ± 1 mm
- Primary aperture ∅ 18.5 mm
- Panel mounting 2 holes ∅ 4.0 mm
- Distance between holes 40.0 mm For panel mounting, replace M4 screws by new one (not supplied) with appropriate length to panel ´s thickness. Load Resistance vs. Supply Voltage 0 50 100 150 200 250 300 350 400 Load Resistance Supply Voltage Front View Bottom View Left View Axis of aperture Plug-in connector included : XW4B-03C1-H1 (OMRON) (distance between screws) 33.50 Range Selection Switch DIN size 35.50 14.80 16.40 4.70 18.50 18.50 Ip IsOUT +24VDC GND Ip IsOUT +24VDC GND Load (+) 2(-) (-) 1(+)3none Output Range Switch 4-20mA
24 VDC Power(Controller,
Meter, etc,) AP/APR Connector Front 070125/4 www.lem.comLEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. Page 3/3