High Speed Circuit Breaker type IR2000
The IR2000 series are single pole, magnetic blow-out, trip free, air circuit breakers. The breakers closing mechanism is indipendent, motor operated. The IR2000 Circuit Breaker is held closed by holding coil or by permanent magnet and is equipped with a direct acting over - current trip device which may be either unidirectional and bidirectional. This breaker for on-boad application is available with or without metallic or insulating enclosure. The breaker may operate with single voltage (750, 1500V) or dual voltage (750/1500V). The Breaker conforms to EN60077 Standard.
| Technical Characteristics | |||
| Rated voltage [V] | Un | 750 | 1500 |
| Overvoltage category | OV3 | OV3 | |
| Degree of pollution | PD3 | PD3 | |
| Protection Degrees in Box | IP45 | IP45 | |
| Rated current [A] | In | Up to 3000 | Up to 3000 |
|
Short circuit breaking capacity (IEC 60077) |
Ue | 900 [V] | 1800 [V] |
| Îcc | 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 to 6000 [A] | From 1000 to 6000 [A] |
| Mechanical life | N | 100.000 | 100.000 |
| 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 ÷ 110 | 24 ÷ 110 |
| Type of closing device | With servomotor | With servomotor | |
|
Type of holding device [E: Electrical ; M: Magnetic] |
E o M | E o M | |
| Auxiliary contacts | |||
| Available contacts | 6 NO + 5 NC | 6 NO + 5 NC | |
| Max breaking capacity on Ohmic load [A] | In | 3 | 3 |
| Thermal current [A] | Ith | 5 | 5 |
| Ambient conditions | |||
| Temperature | Tamb | -30 + 40° C | -30 + 40° C |
| Altitude | h | < 1400 m | < 1400 m |
| Installation | |||
| Fixing | Under Frame/Over the roof | Under Frame/Over the roof | |
| Connection of main circuit | Cables | Cables | |
| Weight (1500 A version with box) | kg | 56 | 85 |
| Dimensions box (1500 A version) | mm | 778x320x446h | 714x389x626h |
