AC Current transducer AT-B420L I = 5 .. 150 A AC Current transducer AT-B420L I = 5 .. 150 A PNPN Split-core transducer for the electronic measurement of AC waveform Split-core transducer for the electronic measurement of AC waveform currents, with galvanic isolation between the primary circuit (power) currents, with galvanic isolation between the primary circuit (power) and the and the secondary circuit (measurement). 4-20 mA current output secondary circuit (measurement). 4-20mA current output proportional to proportional to the RMS value of the primary current.the RMS value of the primary current. Electrical data Primary nominal current rms Output current Type Features I (A.t.Rms) I (mA) PN OUT RMS output Electrical data 5 4-20 AT 5 B420L Features Loop-powered 4-20mA current output 10 4-20 AT 10 B420L 20 4-20 AT 20 B420L Split-core type Primary nominal Output current Type RMS output 50 4-20 AT 50 B420L 16 mm sensing aperture for non- AC Current transducer AT-B420L I = 5 .. 150 A current rms 100 4-20 AT 100 B420L Loop-powered 4-20mA current PN contact measurement 150 4-20 AT 150 B420L ISp (A.t.Rms)lit-core trans ducer for the electrIonic (mA) measurement of AC waveform output PN OUT Terminal output currents, with galvanic isolation between the primary circuit (power) and the 1) 5 4-20 AT 5 B420L R Load resistance, with V = + 24 V DC < 600 W Split-core type L C Isolated plastic case recognized secondary circuit (measurement). 4-20mA current output proportional to V Supply voltage (loop-powered) + 20 .. 30 V DC 10 4-20 AT 10 B420L 16 mm sensing aperture for C the RMS value of the primary current. according to UL 94-V0. I Output current limitation < 30 mA 20 SL 4-20 AT 20 B420L non-contact measurement Overload capability - continuous 120 % of I P PN 50 4-20 AT 50 B420L Terminal output - 1 min 150 % of I Advantages PN 100 4-20 AT 100 B420L Isolated plastic case recognized 150 4-20 AT 150 B420L High isolation between primary and according to UL 94-V0. Performance data 1) secondary circuits Electrical data R Load resistance, with V = + 24 V DC < 600 W L C X Accuracy I , T = 25C (excluding offset) < 2 % of I Advantages PN A PN Primary nominal current rms Output current Type Compact case Features V Supply voltage (loop-powered) + 20 .. 30 V DC C Linearity error < 0.5 % I (A.t.Rms) I (mA) L PN OUT Cost-effective solution I Output current limitation < 30 RM S o utput mA I Electrical offset current, T = 25C 4 0.2 mA High isolation between primary SL OE A 5 4-20 AT 5 B420L Easy installation Loop-powered 4-20mA current output Overload10 t capabilityResponse - continuous4-20 time to 90% of IA Ts 1te0 pB420L 120 < % of 100 I m s r P and secondary circuits P PN 20 4-20 AT 20 B420L Split-core type BW Frequency bandwidth 50/60 Hz - 1 min 150 % of I 50 4-20 AT 50 B420L Compact case PN 16 mm sensing aperture for non- 100 4-20 AT 100 B420L Applications contact measurement Cost-effective solution 150 4-20 AT 150 B420L General data Terminal output Performance data 1) AEasy installationutomation and Supervision R Load resistance, with V = + 24 V DC < 600 W L C T Ambient operating temperature Isolated pla- st20 ic c.. as+ e 60recognCized A V Supply voltage (loop-powered) + 20 .. 30 V DC Current measurement for process C according to UL 94-V0. T Ambient storage temperature - 20 .. + 85 C I Output current limitation < 30 mA Applications S SL X Accuracy I , T = 25C (excluding offset) < 1.5 % of I regulation by distributed PLCs or PN A PN Overloamd capability -M caonstsinuous 120 % of I 90 g P PN e Linearity error < 0.5 % of I remote control (e.g. SCADA - 1 min 150 % of I Advantages L IPxx Protection degree PN IP40 PN Automation and Supervision software) I Electrical offset current, T = 25C 4 0.2 mA OE A High isolation between primary and Current measurement for process Performance data Security and Condition Monitoring t Response time to 90% of I step < 100 ms secondary circuits r PN regulation by distributed PLCs X Accuracy I , 1)T = 25C (excluding offset) < 2 % of I PN A PN Load monitoring for protection Note: Max. Load Resistance vs. Supply Voltage Compact case BW Frequency bandwidth 50/60 Hz Linearity error < 0.5 % or remote control (e.g. SCADA L Cost-effective solution systems and predictive I Electrical offset current, T = 25C 4 0.2 mA OE 35 A software) Easy installation t Response time to 90% of I step < 100 m s maintenance (e.g. conveyers, r P General data Safety and Condition BW Frequency bandwidth 50/60 Hz pumps or HVAC motors) 30 Applications Monitoring Energy management General data T Ambient operating temperature - 20 .. + 60 C A Automation and Supervision Load monitoring for protection Convenient connection to power T Ambient operating temperature - 20 .. + 60 C 25 T A Ambient storage temperature - 20 .. + 85 C Current measurement for process S systems and predictive T Ambient storage temperature - 20 .. + 85 C consumption sub-meters S regulation by distributed PLCs or m Mass 90 g m Mass 90 g maintenance (e.g. conveyers, remote control (e.g. SCADA 20 IPxx Protection degree IP40 IPxx Protection degree IP40 pumps or HVAC motors) software) Application domain Security and Condition Monitoring Energy management 15 1)1) Note: Max. Load Resistance vs. Supply Voltage Load monitoring for protection Energy and Automation Note: Max. Load Resistance vs. Supply Voltage Convenient connection to power 400 500 600 700 800 900 1000 systems and predictive 35 consumption sub-meters Max. Load Resistance (Ohm) maintenance (e.g. conveyers, Page 1/3 pumps or HVAC motors) 30 Application domain LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. Energy management 071115/4 www.lem.com Convenient connection to power 25 Energy and Automation consumption sub-meters 20 Application domain 15 Energy and Automation 400 500 600 700 800 900 1000 Max. Load Resistance (Ohm) Page 1/3 Page 1/3 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. 090609/6 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com 071115/4 www.lem.com Supply Voltage (V) Supply Voltage (V)Current Transducer AT-B420L Isolation characteristics 2) V Rated isolation voltage rms 300 V b with IEC 61010-1 standards and following conditions: - Reinforced isolation - Over voltage category CAT III - Pollution degree PD2 - Heterogeneous field 3) V Rms voltage for AC isolation test , 50Hz, 1min. 3.5 kV d dCp Creepage distance 6 mm dCl Clearance distance 6 mm CTI Comparative tracking index (Group I) 600 2) Notes: If insulated cable is used for the primary circuit, the voltage category could be improved according to the primary cable insulation category (please refer to the cable manufacturers indications) 3) between primary (completely filling the hole) and secondary. Safety and warning notes In order to guarantee safe operation of the transducer and to be able to make proper use of all features and functions, please read these instructions thoroughly Safe operation can only be guaranteed if the transducer is used for the purpose it has been designed for and within the limits of the technical specifications. Ensure you get up-to-date technical information that can be found in the latest associated datasheet under www.lem.com. Caution Risk of danger Ignoring the warnings can lead to serious injury and/or cause damage The electric measuring transducer may only be installed and put into operation by qualified personnel that have rceived an appropriate training. The corresponding national regulations shall be observed during installation and operation of the transducer and any electrical conductor. The transducer shall be used in electric/electronic equipment with respect to applicable standards and safety rquirements and in accordance with all the related systems and components manufacturers operating instructions. Caution Risk of electrical shock When operating the transducer, certain parts of the module may carry hazardous live voltage (e.g. primary conductor, power supply). The user shall ensure to take all measures necessary to protect against electrical shock. The transducer is a built-in device containing conducting parts that shall not be accessible after installation. A protective enclosure or additional insulation barrier may be necessary. The transducer shall not be put into operation if the jaw opening is open (split core version) or the installation is not completed. Installation and maintenance shall be done with the main power supply disconnected except if there are no hazardous live parts in or in close proximity to the system and if the applicable national regulations are fully observed. Safe and trouble-free operation of this transducer can only be guaranteed if transport, storage and installation are carried out correctly and operation and maintenance are carried out with care. Page 2/3 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. 090609/6 www.lem.com