Energy consumption sensor

Milesight

CT101 / CT103 / CT105

Smart current transformer

Split-core transformer for retrofitting on equipment, sub-distribution boards and machines. Powers itself from the measured current.

Measured variable

RMS current, 50–60 Hz

Measuring range

CT101 up to 100 A, CT103 up to 250 A, CT105 up to 500 A

Accuracy

±1 % (above 5 A)

Power supply

from the measured current (inductive), optional USB-C

Battery life

not applicable, powered by the measured current

Additionally

Temperature probe (−20 to +100 °C)

Protection rating

IP30

Operating temperature

−20 to +70 °C

Technical datasheet (PDF)

Milesight

CT303 / CT305 / CT310

Three-phase current transformer

Three split-core transformers on one transmitter monitor all three phases of a sub-distribution board or machine separately, without touching the wiring.

Measured variable

RMS current per phase, 50–60 Hz

Measuring range per transformer

CT303 up to 300 A, CT305 up to 500 A, CT310 up to 1,000 A

Accuracy

±1 %

Power supply

from the measured current (inductive), optional USB-C

Battery life

not applicable, powered by the measured current

Additionally

Temperature probe (−20 to +100 °C)

Alerts

Threshold and over-range alarm

Protection rating

IP30

Technical datasheet (PDF)

Dragino

CS01-LB

Four-channel current sensor converter

Up to four split-core transformers on one device, for running times and consumption of individual machines.

Channels

up to 4 current transformers

Current transformers

100 A, 300 A or 600 A (separate)

Features

Running time, consumption trend, current alarm

Power supply

Battery, 8,500 mAh (Li-SOCl₂)

Battery life

up to around 4 years (manufacturer's calculation, depending on number of transformers and transmission interval)

Operating temperature

−40 to +85 °C

Technical datasheet (PDF)

Technical data according to the manufacturer's datasheet, battery life under the stated conditions. All devices shown transmit via LoRaWAN. In addition to these examples, we also use LoRaWAN devices from other manufacturers depending on requirements.