Three-phase electricity meter AIST A300 H NB-IoT+2G

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Three-phase electronic electricity meter “AIST A300 H” is used for measuring and metering of active and reactive energy in three-phase AC circuits and transmission of telemetric information about consumed electricity when used in automated data acquisition systems. The meters are also divided by current and voltage.

The meter is additionally equipped with a data input-transfer unit (NB-IoT+2G module).

2G module is a built-in module that allows data transmission from the meter to the server via the network of cellular operators using 2G technology.

NB-IOT module is an embedded module allowing to transmit data from the meter to the server via cellular network using NB-IOT technology.

Accuracy for active electrical energy: 0,2S, 0,5S, 1,0

Accuracy for reactive electrical energy: 1,0, 2,0

Base, Ib (maximum) current, A: 10 (100), 5 (100), 5 (60)

Rated, In, (maximum) current for transformer connection, A: 1 (2), 5 (10), 5 (7,5)

Rated voltage value (Unom), V: 3×230/400 (Direct), 3×230/400 (Transformer), 3×57,7/100 (Transformer)

Starting current (sensitivity threshold): 0.001Ib, 0.002Ib 0.003Ib (Transformer), 0.004Ib, 0.005Ib (Direct)

Set operating voltage range, V: 0.6 to 1.2Unom (SPODES Protocol, Direct), 0.8 to 1.2Unom (SPODES Protocol, Transformer), 0.9 to 1.1Unom (DLT645 protocol)