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Vendor: TENSE

Protective three-phase monitoring relay for phase tripping/failure/tracking control

Barcode: FKV-11
€20,52 €16,96 excl. VAT
€20,52 €16,96 excl. VAT
17 in stock
All items are in stock and shipped from the Czech Republic. Delivery takes 3–8 days.
  • Description
  • Instructions
  • Payment methods
  • Warranty

Phase Control Relay FKV-11 | TENSE

The FKV-11 phase control relay is designed to protect three-phase equipment from major power grid disturbances - in particular, against phase failure (phase loss), phase sequence errors, and phase asymmetry. The relays ensure the safe operation of electric motors, pumps, compressors, and other three-phase equipment.

The model has a fixed 30% asymmetry and is designed for single DIN rail mounting.

FKV-11 Relay Operation (Operating Algorithm)

Normal Operation

  • All three phase voltages are present.

  • Phases are connected in the correct sequence.

  • Voltage is within the permissible range.

  • Contacts 2-3 are switched, LED OUT → output is active.

Asymmetry or Voltage Deviation

  • If the voltage of one phase changes by more than 30% or if the sum of multidirectional value changes exceeds this limit:

    • the ASM LED (asymmetry indicator) lights up,

    • contacts 2-3 disconnect,

    • contacts 1-2 close,

    • the OUT indicator turns off.

Return to Normal Mode

  • If the voltage returns to the permissible range,

  • the relay will re-activate the output, and contacts will switch back to 2-3 closed contacts.

Main Features and Benefits

  • Protection against:

    • Phase failure,

    • incorrect phase sequence,

    • phase asymmetry (fixed 30%).

  • Visual status indication with LEDs (OUT / ASM).

  • Fast response to power grid faults.

  • Compact design - only 22.5 mm wide.

  • Easy mounting on DIN rail.

Technical Parameters

Parameter Value
Number of phases 3
Nominal voltage AC 380 V
Minimum operating voltage 200 V
Maximum operating voltage 532 V
Nominal current 5 A
Relay input power max. 3 W
Asymmetry Fixed 30%
Installation DIN rail
Protection class IP20

Dimensions

  • Length: 85 mm

  • Height: 77.6 mm

  • Width: 22.5 mm

Online payment by bank card – after placing the order, you will be redirected to the payment portal. You will receive payment confirmation in your email.

Cash payment upon delivery – you will pay the amount specified in the payment notice to the courier upon delivery.

Payment by bank transfer – a prepayment invoice (proforma) will be sent to your email address no later than the next business day, indicating the bank account number to which the payment should be made.

Payment by invoice – this option is available to cooperation partners who have a cooperation agreement with our company.

If you wish to use one of the last two payment methods, please contact our customer service specialist, who will provide instructions on receiving an invoice with or without VAT.

The electrical equipment we supply meets high-quality standards, comes with a 24-month warranty, and fully complies with all European Union requirements.

We also offer free delivery for orders over 100 EUR, as well as a flexible discount and promotion system. Our employees' technical knowledge and experience allow us to provide professional consultations and, if necessary, offer alternative electrical product solutions.

The electrical equipment we supply meets high quality standards, comes with a 24-month warranty, and complies with all EU requirements.
In case of claims, returns are free of charge.

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