Main DC Circuit Breaker

DC Circuit Breakers protect propulsion and auxiliary high-voltage circuits from short circuits. A DC Circuit Breakers with a high breaking capability must be coordinated with the DC substation short-circuit protections when short circuits occur close to a substation.

We provide a wide and flexible range of products fitting most installation requirements.

  • High electrical durability guaranteed with ceramic arc-chute
  • Intrinsic safe device thanks to magnetic latch
View IR3000V Series
View IR4000V Series
View all Breaker's Series
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Series
Size
Archute


 IR3000V
3015 | 3030
09LP

 IR3000V
3015 | 3030
09MP

 IR3000V
3015 | 3030
18MP

 IR4000VH
4030 | 4045
18MP

 IR4000VV
4030 | 4045
18MP

 IR4000VH
4030 | 4045
36MP

 IR4000VV
4030 | 4045
36M

 IR4000VV
4030 | 4045
Rated Operational Voltage [V] 900 900 1800 1800 1800 3600 3600 1800 - 3600
Thermal Current Ith(A)= @ 40°C [A] 1500 | 3000 1500 | 3000 1500 | 3000 3000 | 4500 3000 | 4500 3000 | 4500 3000 | 4500 3000 | 4500
Rated Short Circuit Making and Breaking Capacities
 T1 [kA/ms] 30/0
(42kA Peak)		 50/0
(70kA Peak)		 30/0
(42kA Peak)		 100/0
(140kA Peak)		 100/0
(140kA Peak)		 55/0
(77kA Peak)		 55/0
(77kA Peak)		 100/0 - 55/0
(140kAPeak) - (77kA Peak)
T2 [kA/ms] 30/15 32.5/15 30/15 60/15 60/15 50/15 50/15 60/15 - 50/15
T3 [kA/ms] 30/50 30/50 30/40 50/40 50/40 50/30 50/30 50/40 - 50/30
T4 [kA/ms] 30/150 30/150 30/100 35/100 35/100 50/50 50/50 35/100 - 50/50
Dimensions Length L [mm] 548 548 548 1240 679 1240 679 711
Width W [mm] 265 265 265 700 319 700 319 365
Height H [mm] 395 475 475 322 916 322 916 916
Weight [kg] 44 54 54 173 | 180 173 | 180 205 | 210 205 | 210 180 | 185