¶ Supported Powermeter
Powermeters are interfaced to the FLEXeCHARGE Gateway CONNECT via the Modbus TCP protocol.
In principle, any Powermeter with Modbus TCP interface can be connected to the system.
However, please note, that we recommend using the following Phoenix Contact powermeter with our Gateway, which are preconfigured and tested with the Gateway CONNECT. Whether to choose the Phoenix Contact EEM-MB370 or the EEM-MB371 depends on the type of current sensor being used.
With Phoenix Contact PACT Current transformers
Phoenix Contact EEM-MB370 - Measuring instrument
Multi-functional energy measuring device without display with integrated Modbus/TCP interface for measuring electrical parameters in low-voltage installations up to 690 V.
With Phoenix Contact PACT RCP Rogowski coils
Phoenix Contact EEM-MB371 - Measuring instrument
Multi-functional energy measuring device without displaywith direct Rogowski connection and integrated Modbus/TCP interface for measuring electrical parameters in low-voltage installations up to 690 V.
Please contact our sales representatives for pricing information of the Phoenix Powermeters.
If you wish to connect another powermeter, please contact our support team. The following powermeters are currently in operation by customers with the FLEXeCHARGE Gateway CONNECT:
Please refer to the documentation of the powermeter for selecting current sensors for other powermeter.
Interfacing powermeters via Modbus RTU is not supported.
¶ Selecting current sensors
There are different types of current transduers available depending on whether they are used in a new installation or for quick and easy retrofitting. PACT RCP Rogowski coils and PACT SCP split-core current transformers differ in their current rating.
This page is intened to only give a quick summary. Much more in details about the here mentioned current transducers as well as tutorial videos to Phoneix Contact currents sensors can be found at the Phoenix Contact Online Catalogue
¶ New installations
PACT Current transformers: Offer a complete range for converting alternating currents (AC) of up to 4000A (AC) into secondary currents of 1A AC and 5 A AC. Depending on the application requirements, bus-bar, plug-in and winding transducers are available. PACT current transducers come in a range of various transformation ratios, accuracy classes, and rated powers.
Please select for suitable current rating and for the circular conductor dimensions.
Please use the Phoenix Contact Online Catalogue to choose the correct current transformer for your application.
¶ Retrofitting
PACT RCP Rogowski coils: For quick retrofit capture AC currents up to 4000 A and convert them into secondary current.
Phoenix Contact offers 4 different Rogowski coils:
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PACT RCP-D140 - Coil: 450 mm long Rogowski coil. The measuring coil diameter when installed is 140 mm. The Rogowski coil is used for AC current measurement for busbars and power lines.
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PACT RCP-D190 - Coil: 600 mm long Rogowski coil. The measuring coil diameter when installed is 190 mm. The Rogowski coil is used for AC current measurement for busbars and power lines.
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PACT RCP-D140-5M-UV - Coil: UV-resistant Rogowski coil, The Rogowski coil measures the AC current of rails and power lines.
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PACT RCP-D140-10M - Coil: Rogowski coil, The Rogowski coil measures the AC current of rails and power lines.
Detailed information to each of the mentioned Rogowski coils can be found at the Phoenix Contact Online Catalogue
When using Rogowski coils with busbars and optional holding device ensures the Rogowski coil is securely seated on busbars with a thickness of 10 ... 15 mm. During installation, the coil housing is pushed onto the flange of the holding device and snaps in automatically. Details at the Online Catalogue
PACT SCP split-core current transformers: For quick retrofit of new measuring points for smaller currents up to 100A
Phoenix Contact split-core current transformers:
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PACT SPC-100-1A-D13 - Current transformer: Split-core current transformer, primary current: 0 ... 100 A AC, secondary current: 0 ... 1 A AC, rated power: 0.2 VA, length of signal cable: 3 m
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PACT SPC-20-1A-D13 - Current transformer: Split-core current transformer, primary current: 0 ... 20 A AC, secondary current: 0 ... 1 A AC, rated power: 0.2 VA, length of signal cable: 2 m
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PACT SPC-50-1A-D13 - Current transformer: Split-core current transformer, primary current: 0 ... 50 A AC, secondary current: 0 ... 1 A AC, rated power: 0.2 VA, length of signal cable: 3 m
Details to split-core current transformers are available at the Online Phoenix Contact product selection guide
ESTRON split core current transformers (compatible to Phoenix Contact powermeter:
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ESCT-T24 Series Current Transformers: Single phase split core CT, 100A to 300A range, Complete with 2m flying lead, 24mm aperture
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ESCT-T26 Series Current Transformers: Single phase split core CT, 100A to 600A range, Complete with 2m flying lead, **36mm **aperture