Product leaflet Single phase electricity meters B21 EQ meters in Steel version from ABB The compact and versatile EQ meters B21 is a single phase meters with outstanding performance. It can be used in most of the common applications for reliable and trustworthy metering of energy usage. EQ meters B21 in Steel version can be used in standalone applications or metering network installations with the option of inbuilt M-Bus or Modbus. General features B21 is a single phase direct connected meter up to 65 A. The B21 is measuring active energy with accuracy class B (Cl. 1). The low rated or base currents of the meter ensures high dynamic performance with superior accuracy even at low currents. Navigation the meter is easily done via the push-buttons below the display. The exceptional low power consumption of the meter, less than 0.9 VA, makes it economical in the long run - an important feature specially for large meter populations. Approvals The B21 meter is type approved according to IEC as well as type approved and verified according to MID. MID is the Measure Instruments Directive 2004/22/EC from European Commission. The type approval is according to standards that covers all relevant technical aspects of the meter. These include climate conditions, electromagnetic compatibility (EMC), electrical requirements, mechanical requirements and accuracy. Ordering details Communication Data from B21 can be collected via pulse output or serial communication. The meter are equipped with a transistor output for 5-40 VDC external supply. It can be used for pulses proportionally to the measured energy or various alarms. The meter is also available with built-in serial communication interfaces for Modbus RTU (RS-485) or M-Bus. Instrumentation The B21 meter support reading of instrument values. A large number of electrical properties can be read. * * * * * Active power Voltage Current Power factor Frequency 65 A direct connected, 2 DIN Voltage V Communication Type Order code Weight 1 pc Steel Active energy, pulse output, class B (Cl. 1) 1 x 230 V AC - B21 111 - 100 2CMA100149R1000 0.14 RS-485 B21 112 - 100 2CMA100150R1000 0.15 M-Bus B21 113 - 100 2CMA100151R1000 0.15 B21 Voltage/current inputs Nominal voltage Voltage range Power dissipation voltage circuits Power dissipation current circuits Base current Ib Reference current Iref Transitional current Itr Maximum current Imax Minimum current Imin Starting current Ist Terminal wire area Recommended tightening torque Communication Terminal wire area Recommended tightening torque Pulse indicator (LED) Pulse frequency Pulse length General data Frequency Accuracy Class Active energy Display of energy Environmental Operating temperature Storage temperature Humidity Resistance to fire and heat Resistance to water and dust Mechanical environment Electromagnetic environment Outputs Current Voltage Pulse output frequency Pulse length Terminal wire area Recommended tightening torque EMC compatibility Impulse voltage test Surge voltage test Fast transient burst test Immunity to electromagnetic HF-fields Immunity to conducted disturbance Immunity to disturbance with harmonics Radio frequency emission Electrostatic discharge Standards Mechanical Material Dimensions Width Height Depth DIN modules 230 V AC 220-240 VAC (-20% - +15%) 0.9 VA (0,4 W) total 0.014 VA (0.014 W) at 230 V AC and Ib 5A 5A 0.5 A 65 A 0.25 A < 20 mA 1 - 25 mm2 3 Nm 0.5 - 1 mm2 0.25 Nm 1000 imp/kWh 40 ms 50 or 60 Hz 5% B (Cl. 1) 1% 6 digit LCD -40C - +70C -40C - +85C 75% yearly average, 95% on 30 days/year Terminal 960 C, cover 650C (IEC 60695-2-1) IP20 on terminal block without protective enclosure and IP51 in protective enclosure, according to IEC 60529. Class M1 in accordance with the Measuring Instrument Directive (MID). (2004/22/EC). Class E2 in accordance with the Measuring Instrument Directive (MID), (2004/22/EC). 2 - 100 mA 5 - 40 VDC. Programmable: 1 - 999999 imp/kWh Programmable: 10 - 990 ms 0.5 - 1 mm2 0.25 Nm 6 kV 1.2/50s (IEC 60060-1) 4 kV 1.2/50s (IEC 61000-4-5) 4kV (IEC 61000-4-4) 80 MHz - 2 GHz (IEC 61000-4-6) 150kHz - 80MHz (IEC 61000-4-6) 2kHz - 150kHz EN 55022, class B (CISPR22) 15 kV (IEC 61000-4-2) IEC 62052-11, IEC 62053-21 class 1, IEC 62054-21, GB/T 17215.211-2006, GB/T 17215.312-2008 class 1, GB 4208-2008, EN 50470-1, EN 50470-3 category B Polycarbonate in transparent front glass. Glass reinforced polycarbonate in bottom case and upper case. Polycarbonate in terminal cover. 35 mm 97 mm 65 mm 2 Wiring diagram B21 1 3 5 L N ABB AB Meters Box 1005 SE-611 29 NYKOPING, Sweden Telephone +46 155 29 50 00 Telefax +46 155 28 81 10 www.abb.com (c) Copyright 2014 ABB. All rights reserved. Specification subject to change without notice. This QR-code is linked to our web site www.abb.com/lowvoltage. You will have to download a QR-code reader app to your phone in order to use it. Product leaflet 2CMC485004L0201, rev. B, July 2014 Prod ABB AB, LP/XM B series Technical data