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EKM8T Thermal-magnetic double adjustable type MCCB

EKM8T Thermal-magnetic double adjustable type MCCB
Technical Data

Product Selection Guide

EKM8 T 160 H
Product code Adjustable type Code of frame size current Breaking capacity ICU/ICS(kA)
Moulded-case circuit breaker (MCCB) T: thermomagnetic adjustable
T/A: single adjustable
(i.e. thermal adjustable
\magnetic fixed)
160, 250, 400, 630, 800
Note:
160 is upgraded type of 100 frame
225 is upgraded type of 250 frame
630 is upgraded type of 400 frame
  S M H
160 25/18   35/25   50/35  
250 25/18 35/25 50/35
400 35/25   -   65/65  
630 35/25 - 65/65
800 35/25 - 65/65
H-high performance 70KA
Z 3 300 160
Code of operating mode Pole number Code of release type and internal accessory Rated current (A)
P: electric operation
Z: rotary handle
W: direct operation
①Electric operation
DC1,DC2,DC3
3: 3-pole
4: 4-pole
The first digit represents release type
2: Has instantaneous release only
3: Complex release
Note:
Later two digits are the code of
accessories (see accessory table 1)
160 20-25,25-32,32-40,40-50,50-63,
63-80,80-100,100-125,125-160
250 100-125,125-160,160-200,200-250
400 200-250,250-320,320-400
630 400-500,500-630
800 400-500,500-630,630-800
2 A
Application Code of four-pole product
1: power distribution
2: motor protection
A: N-pole without protection, cannot close or open
B: N-pole without protection, can close and open
C: N-pole with protection, can close and open
D: N-pole with protection, cannot close or open
Q1 D1 Q 2
Accessory voltage Electric operation voltage Installation methods Install wiring
board or not
Q1: AC220V F1: AC220V J1: AC125V D1: AC220V D5: AC230V Q: Front-board
H: Back-board
C: Plug-in type
1: No
2: Yes
Q2: AC240V F2: AC380V J2: AC250V D2: AC230V D6: AC110V
Q3: AC380V F3: DC110V J3: DC125V D3: AC380V D7: DC220
Q4: AC415V F4: DC24V J4: DC24V D4: AC400V D8: DC110
  D9: AC110-240V
  D10: DC100-220V
  Note:
Adaptable voltages for two electric
operations. Please refer to the
introduction of external accessory
 

 Main Performance Indexes

Frame current (A) 160 250
Model EKM8T-160S EKM8T-160M EKM8T-160H EKM8T-250S EKM8T-250M EKM8T-250H
Pole number 3, 4 3, 4
     
Rated current (A) 20-25, 25-32, 32-40, 40-50, 50-63,
63-80,80-100, 100-125A, 125-160A
100-125, 125-160, 160-200, 200-250A
Rated voltage (V) AC400V AC400V
Rated insulation voltage (V) AC1000V AC1000V
Short-circuit breaking capacity(KA)Icu/Ics AC400V 25/18 35/25 50/35 25/18 35/25 50/35
Operating cycle number Electrical life 3000 3000
Mechanical life 7000 7000
Outline dim(mm) a-b-c-ca
 
3P 90-155-68-90 90-155-88-115 105-165-68-92 105-165-88-115
4P 120-155-68-90 120-155-88-115 140-165-68-92 140-165-88-115
 
Weight (kg) 3P 1 1 1.1 1.5 1.7
4P 1.1 1.4 1.7 1.9 2.1
Electric operating device (MD)
External driving
operating handle
Automatic release Thermal electromagnetic type
Frame current (A) 400 630 800
Model EKM8T-400S EKM8T-400H EKM8T-630S EKM8T-630H EKM8T-800S EKM8T-800H
Pole number 3, 4 3, 4 3, 4
       
Rated current (A) 200-250, 250-320,320-400 400-500, 500-630 400-500, 500-630,630-800
Rated voltage (V) AC400V AC400V AC400V
Rated insulation voltage (V) AC1000V AC1000V AC1000V
Short-circuit breaking capacity(KA)Icu/Ics AC400V 35/25 65/65 35/25 65/65 35/25 65/65
Operating cycle number ON 2000 2000 1500
OFF 4000 4000 4000
Outline dim(mm)
a-b-c-ca
 
3P 140-257-103-155 140-257-103-155 210-275-103-155
4P 185-257-103-155 185-257-103-155 280-275-103-155
 
Weight (kg) 3P 5.5 5.7 9.5
4P 7 7.5 12.5
Electric operating
device (MD)
External driving
operating handle
Automatic release Thermal electromagnetic type

EKM8T Thermal-magnetic double adjustable type MCCB