Moulded Case Circuit Breakers
mcb mccb acb
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ESCB1 / 1A

ESCB3

ESCB4

 

ESCB2 & ESCB2A

Accessories

ESCB2
Normal short-circuit switching capacity

ESCB2A
High short-circuit switching capacity

Overall Comparison

Regulations IEC 947-2; EN 60947-2; DIN VDE 0660 part 101
General Information   ESCB2 ESCB2A
Rated impulse withstand voltage kV 6 8
Utilization category   A A
Mechanical lifespan Ops 10000 10000
Electrical lifespan Ops 2000 2000
Ambient temp. min/max °C -10/+55 -10/+55
Weight kg 5.2 5.2
       
Main Poles      
Rated continuous current Iu A 400 400
Rated operational voltage Ue - AC V 690 690
Rated operational voltage Ue - DC V 440 440
Frequency Hz 50 - 60 50 - 60
Protection (front)   IP20 IP20
Rated
Uninterrupted
Current		 Overload
Release
Setting Range		 Response
Current of
Short Circuit
Release 		ESCB2     ESCB2A  
           
Iu (A) (A) (A) Type Order
Number 		  Type Order
Number
50 38-50 250 ESCB 2-50 310/006   ESCB-2A-50 311/006
63 47-63 315 ESCB 2-63 3100/007   ESCB-2A-63 311/007
80 60-80 400 ESCB 2-80 310/008   ESCB-2A-80 311/008
100 75-100 500 ESCB 2-100 310/009   ESCB-2A-100 311/009
125 95-125 625 ESCB 2-125 310/010   ESCB-2A-125 311/010
160 120-160 800 ESCB 2-160 310/011   ESCB-2A-160 311/011
200 150-200 1000 ESCB 2-200 310/012   ESCB-2A-200 311/012
250 190-250 1250 ESCB 2-250 310/013   ESCB-2A-250 311/013
315 235-315 1575 ESCB 2-315 310/014   ESCB-2A-315 311/014
400 300-400 2000 ESCB 2-400 310/015   ESCB-2A-400 311/015

 

Rated Limited Short Circuit Breaking Capacity Icu (IEC 947-2 and VDE 0660 part 1)

 
ESCB2 Icu (kA)
ESCB2A Icu (kA)
Setting Range (A) 230Vac 400Vac 500Vac 690Vac 220/440Vdc   230Vac 400Vac 500Vac 690Vac 220/440Vdc
38 - 50 40 15 15 12 20   40 15 15 14 20
47 - 63 40 25 20 12 20   55 25 20 14 20
60 - 80 40 25 20 12 20   55 25 25 14 20
79 - 100 40 25 20 12 20   55 25 25 14 20
95 - 125 40 25 20 12 20   55 36 25 14 20
120 - 160 40 25 20 12 20   55 36 25 14 20
150 - 200 40 25 20 12 20   55 36 25 14 20
190 - 250 40 25 20 12 20   55 36 25 14 20
235 - 315 40 25 20 12 20   55 36 25 14 20
300 - 400 40 25 20 12 20   55 36 25 14 20

 

Cross Section & Copper Losses (per pole)

Rated Uninterrupted Current   CS - Busbar CS - Busbar CS - Cable CS - Cable   Copper Losses
(A)   Cu (mm2) Al (mm2) Cu (mm2) Al (mm2)   Pu (W)
40       10 16    
50       10 16   8.5
63       16 25   12
80       25 35   13
100   16x2 16x3 35 50   14.4
125   20x2 20x3 50 70   16
160   20x3 25x3 70 95   18.2
200   16x5 20x5 95 120   21
250   20x5 25x5 120 150   24
315   32x5 32x8 2x95 240 2x120   28
400   32x6 32x8 2x120 300 2x150   32.6

 

Dimensions (mm)

Type B H T G
ESCB2, 2A 150 225 100 39.5
         
         
           
Mounting Position