OptiBee Energy Pro

Three phases, two field buses, and one port that becomes the rest.

4 TE on the DIN rail. Direct metering to 63 A per phase with external CTs above it, two isolated RS485 segments, Ethernet, and a USB port that turns into WiFi, a second network, another field bus or a firmware stick. The optimisation runs on the device — no decision waits on a cloud.

2× RS485

Field bus, both usable at once

1× LAN

Ethernet, local network

USB → all

One port, four expansions

USB adapter catalogue

Request a demo Datasheet and documents

OptiBee Energy Pro at 45°, showing the rail clip, the front face and the top terminal block

Interfaces

What it connects to

Four interfaces, and the reason there is only one model to order.

2×

RS485

Two native RS485 buses, each usable as master or slave. In slave mode the device serves its own readings to the inverter, so the installation needs one meter fewer.

9600–115200 Baudhalf duplex≤ 10 m twisted pair

1×

Ethernet

EEBUS, Modbus TCP, MQTT and the local web interface. Plug it in and it is reachable.

10/100 MbitAuto-MDIX≤ 100 m CAT5

1×

USB → everything

The expansion port. With an adapter it becomes WiFi, a second LAN, more RS485 or CAN, KNX, or extra storage.

WiFisecond LANRS485 / CANstorage

Adapter catalogue →

L1·L2·L3·N

Three-phase metering

L1, L2, L3 and N are measured in the device: Class 1 on direct measurement, up to 63 A per phase. External CTs are supported above that, with the ratios set in software.

63 A directexternal CT aboveClass 1

The unit

Photographed on the bench

Front face of the OptiBee Energy Pro with its four indicators and the recessed USB and Ethernet ports — Front. Four indicators — status, network, serial bus, reset — with USB and Ethernet in the recess, and the phase terminals above and below.

Top of the OptiBee Energy Pro with three phase apertures and the pluggable terminal blocks — Top. The three apertures the phase conductors pass through, and the pluggable terminal blocks beside them.

Close-up of the pluggable top terminal blocks — The pluggable terminal blocks, close up, beside one of the phase apertures.

Close-up of the USB 2.0 type A port — One USB 2.0 type A port. One adapter at a time — the root hub reports a single child.

Close-up of the Ethernet port — Ethernet. 10/100 Mbit, Auto-MDIX, up to 100 m on CAT5.

Key data

The numbers an installer checks first

Application: Residential and commercial
Current measurement: Direct or via CT
Interfaces: USB · LAN · 2× RS485
Accuracy: Class 1 (IEC 62053-21)
Dimensions: 88 × 70 × 65 mm
Mounting: 4 TE · DIN rail
Manufacturing: Germany

Full electrical data, tolerances and approvals are in the datasheet. Where a figure appears in both places, the datasheet is the one that counts.

Datasheet and documents

Protocols

EEBUSKNXOCPPMQTTModbusSG Ready 1.1Node-REDHome Assistant

Standards and approvals

CE · LVD / EMC / RoHS
EN 61010-1
EN 61326-1 (Industrial)
IEC 62053-21 Class 1
EnWG §14a ready
KNX Member

Made in Germany

The claim is printed on the device.

Hardware and software are developed in Germany.
Every manufacturing step happens in Germany. Components are sourced internationally, as they are for any electronics assembled here.
Beeker Tech GmbH & Co. KG, Am Lichtweg 50, 41470 Neuss.

The same plate carries the CE marking, the measuring circuit rating CAT III 63 A and protection class IP2X — the figures worth checking before the device goes into the cabinet.

See it in a cabinet like yours.

Bring the device list. We will tell you what the integration does for each model before you order anything.

Request a demo Datasheet and documents