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3RV1374-7GN10｜SIEMENS SIRIUS High‑Performance Motor Protection Circuit‑Breaker (MPCB)
Model complet: 3RV1374-7GN10 (Siemens SIRIUS 3RV1 series, moulded case circuit‑breaker with enhanced breaking capacity for starter combinations)
Marca: Siemens SIRIUS Industrial Control Series
- Defalcare detaliată a modelului
| Partea modelului | Sens | Descrierea cheii |
| 3RV1 | Serie | SIRIUS 3RV1 series, moulded case motor protection circuit‑breaker, designed with enhanced breaking capacity for starter combinations |
| 374 | Dimensiune | Dimensiune mare, rated current 400A, suitable for 200kW three‑phase motors at 400V |
| 7 | Clasa de capacitate de rupere | Capacitate de rupere sporită, up to 200kA@400V |
| G | Tip de călătorie | Electronic trip unit, short‑circuit protection adjustable from 1–10 × In |
| N | Conexiune | Borne cu șuruburi, with phase barriers for safe and reliable connection |
| 10 | Numărul de poli | 3 stâlpi (3P3d), for three‑phase motor protection circuits |
- Core Technical Data
| Articol | Caietul de sarcini | Note |
| Curent nominal de funcționare (În) | 400O (fix) | For 200kW three‑phase induction motors at 400V |
| Tensiune nominală (Ue) | 690V și | For medium‑high voltage industrial motor control systems |
| Tensiune nominală de izolație (Ui) | 1000V și | Higher than operating voltage, large safety margin |
| Capacitate maximă de rupere (Icu) | 200kA@400V | Enhanced breaking capacity for heavy short‑circuit faults |
| Polonii | 3 stâlpi (3P3d) | Standard three‑phase motor protection |
| Trip Characteristic | Magnetic only (short‑circuit protection only) | Călătoria electronică, short‑circuit adjustable 1–10×In; must be used with overload relay |
| Operațiunea | Rotary ON/OFF actuator | Manual control, simple and clear |
| Montare | Montare pe panou | Suitable for control cabinet integration |
| Grad de protecție | IP30 | Standard for switchgear installation |
| Standard aplicabil | IEC 60947‑4‑1 | International standard for motor protection devices |
- Caracteristici cheie & Aplicații
Principalele avantaje
- Ultra‑high breaking capacity: 200kA@400V, withstands heavy short‑circuit faults in industrial networks
- Precise protection: Electronic trip with adjustable short‑circuit protection for various motor starting characteristics
- Reliable connection: Screw terminals with phase barriers to prevent phase‑to‑phase short circuits
- System integration: Designed for starter combinations, works perfectly with contactors and overload relays
- Durable design: Industrial‑grade quality, suitable for harsh environments and long mechanical life
Aplicații tipice
Large industrial motor control centers (MCC), 400V/690V systems
Short‑circuit protection for three‑phase induction motors up to 200kW at 400V (must be used with overload relay)
High‑power motor protection in metallurgy, minerit, paper and other heavy industries
Large continuous‑duty equipment: compresoare, fani, pompe
Main drive motors in production lines with frequent starting and fluctuating loads
- Modele de înlocuire
Upgrade-uri / Înlocuitori (Same Brand)
| Model | Key Data | Caracteristici | Aplicație |
| 3VA2240‑0MS32‑0AA0 | 400O, 200kA@400V, 3P, călătorie electronică | Upgrade replacement for 3RV1, new 3VA2 series MCCB | New projects requiring higher performance and communication |
| 3RV1374‑7KN10 | 400O, 200kA@400V, 3P, călătorie electronică | Different terminal configuration | Same rating, different connection requirements |
| 3RV1374‑7GN20 | 400O, 200kA@400V, 4P, călătorie electronică | 4‑pole version with neutral protection | Three‑phase four‑wire systems needing neutral protection |
Alternative între mărci
| Marca | Model | Matching Specifications |
| ABB | Tmax T4H 400 PR221DS | 400O, 100kA rupere, călătorie electronică, 3P |
| Schneider | TeSys GV4‑ME400 | 400O, 100kA rupere, thermal‑magnetic trip, 3P |
| Mitsubishi | NF400‑SEW | 400O, 100kA rupere, călătorie electronică, 3P |
- Protection coordination: This unit provides magnetic only (scurtcircuit) protection and must be used with an overload relay (de ex. 3RU series) for complete motor protection.
- Potrivirea capacității de rupere: Selected based on system short‑circuit calculation; 200kA suits most industrial grids.
- Cablaj: Screw terminals for copper/aluminum cables; observe cross‑section and torque specifications.
- Mounting space: Large frame size requires sufficient cabinet space.
- Upgrade recommendation: Some 3RV1 models are discontinued; 3VA2 series is recommended for new projects for advanced protection and communication.
- Accesorii: Contacte auxiliare, alarm contacts available for motor status monitoring and control.
