Interface CF2 for load monitoring and control

DIN-Rail mount modules



The Ekinex® EK-CF2-TP interface for load monitoring and control is a KNX devices which can be used to:

  • measure the instantaneous current absorbed by (up to) three single-phase or one three-phase electrical circuits; 
  • control electrical loads with priority disconnection and reconnection.

The current measurement is performed by means of max three Ekinex® EK-TA-... current transformers. The device is powered by the KNX bus and does not require auxiliary power supply. Flush-mounting or mounting on a standard 35 mm DIN-rail by means of a support included in the delivery.

Load monitoring
  • Direct measurement of instantaneous current by means of transformers EK-TA-...
  • Calculation of instantaneous power
  • Total electricity metering
  • Sending on the bus of measured current, power and energy values
Load control
  • Possibility to independently handle up to 8 loads for each channel
  • Configurable power threshold for load control and related hysteresis
  • Sending on the bus of an indication when the threshold is reached
  • Possibility to exclude loads from the bus
  • Disconnection and reconnection delay independently configurable for each channel
Power supply
  • 30 Vdc power supply by KNX bus
  • Current consumption from bus < 10 mA

Delivery includes a terminal block for connection to the bus and a support for mounting on a standard 35 mm DIN-rail. Current transformers EK-TA-... (page 151) must be ordered separately.

Functions / Features
  • Plastic casing
  • Programming pushbutton and LED on the case
  • Connection to bus line with KNX terminal block
  • Connection to current transformers by means of a 6-wire screw terminal block
  • IP20 protection degree (installed device)
  • Weight 20 g
  • Connection to current transformers EK-TA-... by means of 3 physical inputs
  • Possibility to measure (up to) three single-phase or one three-phase lines; 
  • Possibility to receive power values from bus
  • 8 general purpose power thresholds
  • 4-channel logic functions (AND, OR or XOR)
Configurationa and commissioning

A detailed description of the parameters can be found in the application manual of the device. Configuration and commissioning require ETS5 2.0 or later versions. ETS application program: APEKCF2TP##.knxprod (## = release).

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