Contactor K3-24K00-230V-20,00 kVAr

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Contactor K3-24K00-230V-20,00 kVAr

Contactor SCHRACK K3-24K00-230V-20,00 kVAr Compensating contactor for switching capacitors AC3/400V 3-pole, coil 220-240V 50Hz 240V 60Hz, self-cleaning auxiliary contacts suitable for electronic circuits - 17V, 5mA, ambient temperature from -40°C to ...
Contactor SCHRACK K3-24K00-230V-20,00 kVAr Compensating contactor for switching capacitors AC3/400V 3-pole, coil 220-240V 50Hz 240V 60Hz, self-cleaning auxiliary contacts suitable for electronic circuits - 17V, 5mA, ambient temperature from -40°C to +60°C. Due to their design, contactors are predestined for high switching frequency and long service life. This also extends the reliability and lifetime of the entire compensation device. High switching power up to 100kVAr is also an advantage. The contactor can be equipped with auxiliary contacts (switching, opening) e.g. for remote communication. Mounting on DIN rail or with screws.
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51,49 € excl. VAT
62,30 € incl. VAT

Recycling fee 1 € included in the price

In stock
Order number: LA3K2433

Contactor K3-24K00-20.00 kVAr SCHRACK

The SCHRACK K3-24K00-20.00 kVAr contactor features a high-quality, robust construction and is designed for installation in low-voltage, three-phase networks. These contactors can be equipped with auxiliary contact blocks. The installed auxiliary contacts with damping resistors (pre-contacts) provide:

  • 4 HN.. or HA.. snap-on
  • 2 HB.. on the left or right side and 7 HN.. or HA.. snap-on
  • 2 HB.. on the left or right side and 4 HN.. or HA.. snap-on

Considerations:

  • Minimum conductor cross-section under maximum load
  • Maximum thermal current: Ith 130A

Type Specifications:

  • Type 230 for AC and DC operation at 220-240 V, 50/60 Hz, and 220 V DC (with integrated coil suppressor).
  • Type 230VS for AC operation at 220-240 V, 50 Hz (with integrated coil suppressor).

The auxiliary contacts ensure:

  • Reduction of switching current surges to <70xIn,
  • Protection of capacitors from current surges (which can typically reach up to 200xIn),
  • Prevention of contact burnout,
  • Overall improvement in current and voltage stability within the network, thus extending the lifespan of components.

Application

These contactors utilize a two-stage switching mechanism, achieved through auxiliary contacts. This design prevents arcing and subsequent welding of the main contacts, as seen in older contactors (e.g., V100, V13). Unlike conventional contactors, they also reduce transition phenomena that propagate through the network and cause interference with communication systems (telecommunications, PC networks).

Design

Auxiliary contacts (pre-contacts) are located on the contactor body, switching a few milliseconds before the main contacts. By using series-connected resistors, current surges are dampened to as low as 70 times Ie.

Due to their construction, these contactors are designed for high switching frequency and long service life, enhancing the reliability and lifespan of the entire compensation device. An added advantage is the high switching capacity of up to 100 kVAr. The contactor can be equipped with auxiliary contacts (NO, NC) for remote communication. Installation options include DIN rail mounting or screw mounting.

 

Jmenovité napětí 230
Výkon kVAr 400 V - 440 V 20
Výkon kVAr 660 V - 690 V 33
Jmenovitý proud [A] 28
Šířka [mm] 45
Hloubka [mm] 120
Výška [mm] 115
Hmotnost v [g] 620
Montáž DIN lišta
Provozní teplota -40.. +60 °C
Efektivní ztráty [W] 6,10 W
Elektrická životnost [sepnutí] 150 000
Frekvence spínání [za hodinu] 240