Moulded Case Circuit Breakers
mcb mccb acb
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ESCB1 / 1A

ESCB2 / ESCB2A

ESCB4

 

ESCB3

Accessories

ESCB3
Normal short-circuit switching capacity

Overall Comparison

Regulations IEC 947-2; EN 60947-2; DIN VDE 0660 part 101
General Information   ESCB3  
Rated impulse withstand voltage kV 8  
Utilization category   A  
Mechanical lifespan Ops 10000  
Electrical lifespan Ops 4000  
Ambient temp. min/max °C -10/+55  
Weight kg 12.0  
       
Main Poles      
Rated continuous current Iu A 630  
Rated operational voltage Ue - AC V 690  
Rated operational voltage Ue - DC V 440  
Frequency Hz 50 - 60  
Protection (front)   IP20  
Rated
Uninterrupted
Current		 Overload
Release
Setting Range		 Response
Current of
Short Circuit
Release 		ESCB3  
     
Iu (A) (A) (A) Type Order
Number
315 235-315 1300-2000 ESCB 3-315 320/014
400 300-400 2000-3000 ESCB 3-400 320/015
500 375-500 2000-3000 ESCB 3-500 320/016
630 475-630 2000-4000 ESCB 3-630 320/017

 

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

Setting Range (A) 230Vac 400Vac 500Vac 690Vac 220Vdc 440Vdc
235 - 315 55 40 30 20 55 35
300 - 400 55 40 30 20 55 35
375 - 500 55 40 30 20 55 35
475 - 630 55 40 30 20 55 35

 

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)
160   25x3 32x5 70 95   15
200   25x4 25x5 95 120   16.5
250   25x5 32x5 120 150   18
315   32x5 40x5 150 185   26.5
400   32x6 40x5 32x8 185 240   37
500   40x10 2x40x8 40x10 2x40x5 2x150 2x185   50
630   50x10 2x50x5 32x16 2x32x8 2x185 2x240   66
800   50x10 2x50x5 2x50x8 2x240 3x240   103
1000   60x10 2x60x5 2x50x10 3x185 2x500 4x240   160

 

Dimensions (mm)

Type B H T G
ESCB3 210 395 106 39
         
         
           
Mounting Position