CIRCUIT BREAKERS - IEC Standard

In Microelettrica, we design, manufacture, and sell a complete range of High Speed Circuit Breakers for railway fixed applications. Our 80-year worldwide experience guarantees very high reliability and low maintenance of our products. High performances are achieved through a strongly optimized design, which ensures a robust dimensioning of components combined with reduced weight and costs. The extreme making and breaking capability is the evidence of our will to be the best partner in the rail market.

The Railway fixed application IR series is certified according to IEC 61992, ANSI C37-14 and is suitable for DC substations as:

  • Rectifier circuit breaker
  • Line circuit breaker
  • Interconnector circuit breaker

 

The Railway fixed application IR series is certified according to IEC 60947 for heavy industry and energy production.

900V Application
1800V Application
3600V Application
View all Breakers ANSI Standard

900V Application

Image Image Image Image Image
Series
Size
Arc chute


 IR3000F
3015 | 3030
09LP

 IR3000F
3015 | 3030
09MP

 IR3000F
3015 | 3030
09HP

 IR4000F
4030 | 4045
09M

 IR4000F
4060 | 4080
09M
Application Type Feeder Breaker Feeder Breaker Feeder Breaker Feeder Breaker Feeder Breaker
Rectifier Breaker Rectifier Breaker
Rated Operational Voltage [Vdc] 900 900 900 900 900
Maximum Operational Voltage [Vdc] 1000 1000 1000 1000 1000
Thermal Current Ith(A)= @ 40°C [A] 1500 | 3000 1500 | 3000 1500 | 3000 3000/4500 6000 | 8000
Holding System Holding coil Holding coil Holding coil Holding coil Holding coil
Permanent Magnet Permanent Magnet Permanent Magnet Permanent Magnet Permanent Magnet
Rated Short-Circuit Current INss/TNC [kA/ms] 30/31.5 50/31.5 70/63 125/100 125/100
Duty F [kA/ms] 30/0
(peak 42.6kA)		 50/0
(peak 71kA)		 70/0
(peak 100kA)		 125/0
(peak 180kA)		 125/0
(peak 180kA)
Duty E [kA/ms] 19.5/20.5 32.5/20.5 35/31.5 62.5/50 62.5/50
Duty D [kA/ms] 6/31.5 6/31.5 6/63 8/100 16/100
Dimensions Length L [mm] 548 548 526 689 841
Width W [mm] 265 265 264 330 338
Height H [mm] 395 475 721 916 916
Weight [kg] 44 54 75 180 190 | 195

1800V Application

Image Image Image Image
Series
Size
Arc chute


 IR3000F
3015 | 3030
18MP

 IR3000F
3015 | 3030
18HP

 IR4000F
4030 | 4045
18MP

 IR4000F
4060 | 4080
18MP
Application Type Feeder Breaker Feeder Breaker Feeder Breaker Feeder Breaker
Rectifier Breaker Rectifier Breaker
Rated Operational Voltage [Vdc] 1800 1800 1800 1800
Maximum Operational Voltage [Vdc] 2000 2000 2000 2000
Thermal Current Ith(A)= @ 40°C [A] 1500 | 3000 1500 | 3000 3000 | 4500 6000 | 8000
Holding System Holding coil Holding coil Holding coil Holding coil
Permanent Magnet Permanent Magnet Permanent Magnet Permanent Magnet
Rated Short-Circuit Current INss/TNC [kA/ms] 30/31.5 50/63 100/63 100/63
Duty F [kA/ms] 30/0
(peak 42.6kA)		 50/0
(peak 71kA)		 100/0
(peak 148kA)		 100/0
(peak 140kA)
Duty E [kA/ms] 19.5/20.5 25/31.5 50/31.5 50/31.5
Duty D [kA/ms] 6/31.5 6/63 8/63 16/63
Dimensions Length L [mm] 548 526 689 841
Width W [mm] 265 264 330 338
Height H [mm] 475 721 916 916
Weight [kg] 54 75 180 190 | 195

3600V Application

Image Image Image
Series
Size
Arc chute


 IR4000F
4030 | 4045
36MP

 IR6000F
6030 | 6040 | 6050
36M

 IR6000F
6040 EVO RFI
70kA | 100kA
Application Type Feeder Breaker
Rectifier Breaker
Rated Operational Voltage [Vdc] 3600 3600 3600
Maximum Operational Voltage [Vdc] 4000 4000 4000
Thermal Current Ith(A)= @ 40°C [A] 3000 | 4500 3150 | 4000 4000
Holding System Holding coil Holding coil Holding coil
Permanent Magnet Permanent Magnet
Rated Short-Circuit Current INss/TNC [kA/ms] 50/63 70/63 70/50
Duty F [kA/ms] 50/0
(peak 71kA)		 50/0
(peak 100kA)		 50/0
(peak 70kA)
Duty E [kA/ms] 35/31.5 35/31.5 35/31.5
Duty D [kA/ms] 8/63 10/63 8/63
Dimensions Length L [mm] 689 768 768
Width W [mm] 330 307 307
Height H [mm] 916 1015 1015
Weight [kg] 180 210 208