ABB Three phase electricity meters A43 and A44

EQ meters in Steel version from ABB

The compact and versatile EQ meters A43 and A44 are three phase meters with outstanding performance. They can be used in most of the common applications for reliable and trustworthy metering of energy usage. EQ meters A43 and A44 in Steel version can be used in stand-alone applications or metering network installations with the option of inbuilt M-Bus or Modbus.

The A series meters are ideal for many applications and installations. The meters support a wide voltage range as well as a wide temperature range. The display is pixel-oriented and can display up to four quantities at the same time. 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, makes them economical in the long run - an important feature especially for large meter populations

General features

Communication Data from A43 and A44 in Steel version can be collected via pulse output or serial communication. The meters 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 meters are also available with built-in serial communication interfaces for Modbus RTU (RS-485) or M-Bus as options.

Approvals The A43 and A44 meters are 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.

Instrumentation The A43 and A44 meters in Steel version support reading of instrument values. A large number of electrical properties can be read. • Active power - Total and per phase • Voltage - Total and per phase • Current - Total and per phase • Power factor