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EKA1 Air Circuit Breaker

EKA1 Air Circuit Breaker
Technical Data

Type Selection Guide

EKA1 2000 3P 400A F AC230V Horizontal wiring
Product code Frame size Pole number Current class Installation code Code of control circuit source voltage Connection mode
Conventional
circuit breaker
2000
3200
6300
3P: three-pole
4P: four-pole
400A
630A
800A
1000A
1250A
1600A
2000A
2500A
2900A
3200A
3900A
4000A
5000A
6300A
D: drawout type
F: fixed type
AC230V
AC400V
DC220V
DC110V
Horizontal wiring
Vertical wiring

Type Selection of Standard Parts and Optional Accessories

M type 230V 230V 230V 6 NO 6 NC
Model of
controller
Voltage of
shunt release
Voltage of energy
releasing electromagnet
Voltage of electric
operating mechanism
Auxiliary contact
AA type 2H type
3B2 type 3H type
AC230V
AC400V
DC220V
DC110V
AC230V
AC400V
DC220V
DC110V
AC230V
AC400V
DC220V
DC110V
Standard: 6NO6 NC
recommended
Undervoltage protection Mechanical interlocking Opening locking Dual-power interlocking Accessories
□ Undervoltage release
□ Undervoltage instantaneous release
□ Undervoltage time-delay
release: D1s D3s D5s 
□ Horizontal interlocking
(wirerope interlocking)
□ Vertical interlocking
(wirerope interlocking)
□ One lock one key
□ Two locks one key
□ Three locks two keys
□ Five locks three keys
□ Intelligent horizontal
interlocking
□ Doorframe
□ Phase partition
□ Phase partition strip
□ AC230V
□ AC400V
□ DC220V
□ DC110V

Note: mark V in □ if need the corresponding optional accessory

Operating  Characteristics

EKA1-2000/3P 400A F AC230V (fixed type 3-pole 400A voltage of control circuit (230V) default horizontal wiring, rated voltage 400V, M type controller, shunt 230V, electric operating mechanism 230V, standard 6 NO 6 NC contacts. Please specify according to the above table if need other accessories.

Model Guide of Intelligent Controller

Configuration Model
  M 2H 3B2 3H
Protection functions
Overload long delay (L)
Short-circuit short delay (S)
Short-circuit instantaneous (I)
Ground fault (G)/alarm
Neutral line overcurrent protection (N)
Current unbalance protection
Load monitoring(Load)(1)
Making current protection (MCR)(2)
Out-of-limit tripping (HSIOC)
Leakage protection/alarm®(3)
Required current protection
Overvoltage/undervoltage protection
Voltage unbalance protection
Reverse power protection
Required power protection
Overfrequency/underfrequency   protection
Phase-sequence protection    
Measurement functions        
Real-time current value, maximum measured value
Required current measurement
Current harmonics, waveform measurement
Real-time voltage value, maximum measured value
Voltage harmonics, waveform measurement
Power / power factor measurement
Energy measurement
Required power measurement
Voltage frequency measurement
Hot melt measurement
Circuit breaker contact equivalent measurement
Auxiliary functions        
Long delay protection curve selection
Fault / alarm log (and query)
Test function
Self-test and alarm functions
Circuit breaker opening/closing (operation) records(3)
Protection parameter lockout
Zone interlocking (ZSI) function(4)  
Communication function

●Standard configuration    ○Auxiliary configuration     — No configuration
□Functions that can be added to the standard configuration with appropriate hardware

Note:

[1]:Need to configure the relay module;
[2]: Need to configure microswitch for detecting opening/closing of circuit breaker;
[3]: Need to configure the leakage transformer (zero-sequence current transformer);
[4]: Need to configure the ZSI circuit module.

Main Performance Indexes

  EKA1-2000 EKA1-3200 EKA1-6300
Frame size rated current Inm (A) 2000 3200 6300
Pole number 3,4 3,4 3,4 3
Rated current In (A) 400, 630, 800,1000
125016002000
2000, 2500
2900, 3200
4000, 5000 6300
Rated voltage Ue (V) 400, 690 400,690 400, 690 400,690
Insulation voltage Ui (V) 1000 1000 1000 1000
Impulse withstand voltage Uimp (V) 12000 12000 8000 8000
Power frequency withstand voltage U (V) AC3500 50HZ AC3500 50HZ AC3500 50HZ AC3500 50HZ
Rated current of N-pole IN (A) 50%ln 50%ln 50%ln,100%ln 50%ln,100%ln
Ultimate breaking
capacity lcu (kA)
AC400V 80 100 120 120
AC690V 50 65 85 85
Running breaking
capacity lcs (kA)
AC400V 50 80 100 100
AC690V 40 65 75 75
Short-current making
capacity lcm (kA)
AC400V 176 220 264 264
AC690V 105 143 165 165
Short-time withstand
current(1s)(RMS) lcw (kA)
AC400V 50 80 100 100
AC690V 40 50 75 75
Closing time (ms) 70 (max) 70 (max) 70 (max) 70 (max)
Operating
performance
AC400V 6500 3000 500 500
AC690V 3000 1500 500 500
Maintenance free 15000 10000 4000 4000
Maintenance required 30000 20000 8000 8000
Connection mode Horizontal vertical Horizontal vertical Horizontal Horizontal
Overall dim. H(height)
×W(width)×L(thickness)
Fixed type 3P 402 x 362 x 323 402 x 422 x 323
Fixed type 4P 402 x 457 x 323 402 x 537 x 323
Drawout type 3P 432 x 375 x 421 432 x 435 x 421 432 x 813 x 494 432 x 928 x 494
Drawout type 4P 432 x 470 x 421 432 x 550 x 421 432 x 928 x 494

Overall and Mounting Dimensions

Outline and installation dimensions of fixed type circuit breaker, see Fig.10, 11

Outline and installation dimensions of drawout type circuit breaker, see Fig.12, 13, 14, 15, 16, 17 and 18

Standard Accessories

Item Function Us
Shunt release Let the circuit breaker disconnect reliably and remotely at circuit voltage (70%-110%)Us AC230V
AC400V
DC220V
DC110V
Closing coil Let the circuit breaker switch on reliably and remotely in energy storing state at circuit voltage (85%-110%)Us
Motor Let the operating mechanism store energy at circuit voltage (85%-110%)Us to prepare for closing of circuit breaker. When the operating mechanism is energy stored, the motor will be stopped through microswitch.
Auxiliary switch Change over the ON and OFF state of circuit breaker, also guarantee short-time power on working and on/off switching of closing coil of shunt release, conventional thermal current 6A, rated control capacity Pe is AC 300VA, DC 60W, standard type 6 NO 6 NC.

Electric Accessories

 

Item
Undervoltage
release
self-suction
type
Rated operating voltage AC230V 50Hz AC4000V 50Hz
Operating voltage value (35%~70%) Ue
Voltage value ensures closing (85%~110%) Ue
Voltage value ensures non closing ≤35%Ue
Power loss 24VA
Actuation time of release,
undervoltage instantaneous release
Instantaneous
Undervoltage
release
self-suction
type
Rated operating voltage Ue AC230V 50Hz AC400V 50Hz
Operating voltage value (35%~70%) Ue
Voltage value ensures closing (85%~110%) Ue
Voltage value ensures non closing ≤35%Ue
Power loss 24VA
Actuation time
of release
Undervoltage instantaneous release Instantaneous
Undervoltage time-delay release Delay time 1s, 3s, 5s; if the voltage restores
to 85% Ue within 1/2 delay time, the circuit
breaker will not be disconnected

Air Circuit Breaker