Electricity Meter B21, Modbus RS485, Single phase meter, 5A
Description
The B series EQ meter is a single phase meter, is mounted on DIN rail and suitable for installation in distribution boards and small enclosures such as consumer units.
The B series are suitable in applications where there is a need for reliable energy measurements and where space is limited.
General features
Navigating the meter is easily done via the push-buttons below the display. To configure the meter settings, the set button must be accessed and this button is
protected against unauthorized use when the transparent lid on the front of the meter is closed and sealed. The power consumption of the meter is very low, less than 0.8 VA.
Communication
Data from the B series meters can be collected via pulse output or serial communication. The pulse output is a solid state relay that generates pulses proportionally to the measured energy. The meters are also equipped with built-in serial communication interface for Modbus RTU (RS-485) and can also be set to communicate over the new EQ bus with the new gateway G13. All meters in the B series come with an infrared port for communication with an external Serial Communication Adapter (SCA) such as the KNX adapter.
Instrumentation
The B series meters support reading of instrument values.
A large number of electrical properties can be read including:
- Active power
- Apparent power
- Reactive power
- Current
- Voltage
- Frequency
Inputs and outputs
The B series support two inputs and two outputs in a fixed configuration. Inputs can be used for counting pulses from e.g. a water meter, or reading status from external devices. Outputs can be used as pulse outputs or controlling external apparatus like a contactor or an alarm (connected via an external relay).
Approvals
The B series meters are type approved according to IEC and they are both type approved and verified according to MID. MID is the Measuring Instruments Directive 2004/22/EC from the European Commission. MID type approval and verification is mandatory for meters in billing applications within EU and EEA. 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.
Technical Details
Specification
Technical
Standards: EN 50470-3
Function: Electricity meter
Sub-Function: Steel
Rated Voltage (Ur): 220-240 V
Voltage Range: 176…276 V
Rated Current (In): 5 A, Maximum 65 A
Current Rating: 5 A
Rated Frequency (f): 50 / 60 Hz
Power Consumption (@Pcons): 0.414 W
Communication Interface: Modbus RS485
Accuracy: Active Energy Class B MID (±1%)
Measuring Instrument Conformity: Measurement Instrument Directive (MID)
Meter Tariff Rating: One-Tariff
Pulse Output Rate: 1-999999
Number of Poles: 1
Number of Phases: Single-phase
Number of Counter Positions: 7
Number of Digital In/Outputs: 1 DO
Meter Type: Direct connected
Mounting Type: DIN-Rail
Pulse Output Type: Electrical
Type of Indicator: Digital
Enclosure Material: Polycarbonate in transparent front glass. Glass reinforced polycarbonate in bottom case and upper case. Polycarbonate in terminal cover.
I/O Option: 1 digital output
Communication: Modbus RTU
Connecting Capacity Main Circuit: 1 ... 25 mm²
Environmental
Ambient Air Temperature: Operation -40 ... 70 °C
Degree of Protection: IP20
RoHS Status: Following EU Directive 2002/95/EC August 18, 2005 and amendment
RoHS Information: 2CMC485005
Environmental Information: 2CMC485004D0001
Conflict Minerals Reporting Template (CMRT): 9AKK108468A3363
Dimensions
Width in Number of Modular Spacings: 2
Product Net Width: 35 mm
Product Net Height: 26.5 mm
Product Net Depth / Length: 65 mm
Product Net Weight: 0.15 kg
Size: 97x35x65mm
Properties
Properties
| Technology | Standard Electrics |
| Brand | ABB |
| Mounting | DIN Rail |
| Operating voltage | 230VAC |
| IP rating | IP20 |
| Mounting Width | 2MW |
