Capacitor Switching Contactor

 
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Capacitor Switching Contactors
 For Use With Reactive or Non-reactive Capacitor Banks

 

Rated Operational Power at 50/60Hz   Aux. Contacts     Pack Weight
Ambient Temperature

Ambient Temperature

 Built-in

Add.

        
50°C     60°C      

Coil Voltage

    
380V 415V 660V 380V 415V 660V  

220-240V   50Hz

    
400V 440V 690V 400V 440V 690V        
kVAr kVAr kVAr kVAr kVAr kVAr no nc pcs.

Type

 pcs. kg/pce
                         
12.5 13 20 12.5 13 20 1 - 1

K3-18K10

 230 1 0.34
12.5 13 20 12.5 13 20 - 1 1

K3-18K01

  230 1 0.34
                         
20 22 33 20 22 33 - - 3¹ K3-24K00  230 1 0.62
                         
25 27 41 25 27 41 - - 3¹ K3-32K00  230 1 0.62
                         
33.3 36 55 33.3 36 55 - - 3¹ K3-50K00  230 1 1.0
                         
50 53 82 50 53 82 - - 3¹ K3-62K00  230 1 1.0
                         
75² 75² 120² 60² 64² 100² - - 3¹ K3-74K00  230 1 1.0
                         

Note: 1) Auxiliary Contact Blocks (see below) Can use two HB11 on left or right side and one HN or HA
             snap-on
Note: 2) Consider the maximum thermal current of the contactor K3-74A: Ith 130Amp.
                         

Specification: Contactors K3-..K are suitable for switching low-inductive and low loss capacitors in capacitor banks (IEC70 and IEC831, VDE 0560) without and with reactors.

Capacitor switching contactors are fitted with early make contacts and damping resistors, to reduce the value of make current <70 x Ie.

Operating Conditions: Capacitor switching contactors are protected against contact welding for prospective making current of 200 x Ie. Fuse rating approx. 1.6 to 2.5 x Ie, type gL (gG).

Technical Data According To: IEC 947-4-1, IEC 947-5-1, EN 60947-4-1, EN 60947-5-1, VDE 0660
                         
                         

 

 

Types K3-18A K3-24K K3-32K K3-50K K3-62K K3-74K

Max. Frequency
of Operations z		 1/h 240 240 240 120 120 80
Contact Life 0.2 0.1 0.1 0.1 0.1 0.08
Rated Operational bei 50°C 18A 28A 35A 48A 72A 105A
Current Ie bei 60°C 18A 28A 35A 48A 72A 87A
Fuses gL (gG) from/to 35/63A 50/80A 63/100A 80/160A 125/160A 160/200A

 

 

Typical Circuit Diagram

Wiring Diagram for
Quick Discharge Resistors
Make sure that the current of the discharge resistors is not higher than the rated current (AC1) of the auxiliary contacts.

Mounting Instructions:  Minimum distance between resistor windings to other parts: 80mm

 

Auxiliary Contact Blocks
  Rated Operational
Current		   Contacts

Block Type

Pack

 Weight
 

AC15

  

AC1

        
 

230V

400V

690V

        
  A A A For Contactor Types no nc   pcs. kg/pce.

6 4 25 K3-18K.. to K3-74K..
Front mounting		 - 1 HA01 10 0.03kg
3 2 10 K3-24K00, K3-74K00
Side mounting		 1 1 HB11 1 0.02kg
                 
  3 2 10 K3-18.. to K3-74K..
Front Mounting		 - 1 HN10 10 0.03kg
  3 2 10 K3-18K.. to K3-74K..
Front mounting		 1 - HN01 10 0.02kg

 

 

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