High Speed Circuit Breaker type IR2000

The IR2000 Series are single pole, magnetic blow out, trip free, air circuit breakers.

The closing mechanism is an independent motor operated type. The IR2000 Circuit Breaker is held closed by holding coil or by permanent magnet device and is equipped with a direct acting over-current trip device which may be either unidirectional and bidirectional.

The breaker conforms to IEEE 37-14, IEEE 37-16, EN 50123 Standards.

Technical Characteristics      
Rated voltage [V] Un 750 1500
Overvoltage category   OV3 OV3
Degree of pollution   PD3 PD3
Rated current [A] In Up to 3000 Up to 3000
Short circuit breaking capacity (ANSI C 37-14) Ue 800 [V]  
  Icc 89 [kA]- Peak  
  Icc 82 [kA]- Steady State  
Short circuit breaking capacity (EN 50123)
Ue 900 [V] 1800 [V]
  Icc 50 [kA]- Peak 45 [kA]- Peak
  Icc 30 [kA]- Steady State 25 [kA]- Steady State
Tripping direction   Uni and Bidirectional Uni and Bidirectional
Trip setting of overcurrent release I From 1000 up to 6000 [A] From 1000 up to 6000 [A]
Mechanical life (EN 50123) N 20.000 20.000
Dielectric withstand voltage [50Hz, 60s]      
Across open main contacts UA 6 kV 6 kV
Between main contacts and earth UA 6 kV 6 kV
Between auxiliary and earth UA 2,5 KV 2,5 KV
Auxiliary circuit      
Rated voltage [Vdc] Un 24 ÷ 220 24 ÷ 220
Type of closing device   With servomotor With servomotor
Type of holding device [EM= Electtromagnetic; PM= Permanent Magnet]   EM/PM EM/PM
Auxiliary contacts      
Available contacts   6 NC + 5 NO 6 NC + 5 NO
Max breaking capacity on Ohmic load [A] In 3 3
Thermal current [A] Ith 5 5
Ambient conditions      
Temperature Tamb -5 + 40° C -5 + 40° C
Altitude h < 1400 m < 1400 m
Fixing   Bolted on the base Bolted on the base
Connection of main circuit   Cables or busbars Cables or busbars
Weight (1500 A version) kg 39 49
Dimensions (1500 A version) mm 532x251x394h 532x251x480h