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3RV1374-7GN10｜SIEMENS SIRIUS High‑Performance Motor Protection Circuit‑Breaker (MPCB)
Modèle complet: 3RV1374-7GN10 (Siemens SIRIUS 3RV1 series, moulded case circuit‑breaker with enhanced breaking capacity for starter combinations)
Marque: Siemens SIRIUS Industrial Control Series
- Detailed Model Breakdown
| Pièce du modèle | Signification | Description de la clé |
| 3RV1 | Série | SIRIUS 3RV1 series, moulded case motor protection circuit‑breaker, designed with enhanced breaking capacity for starter combinations |
| 374 | Taille | Grande taille, rated current 400A, suitable for 200kW three‑phase motors at 400V |
| 7 | Classe de capacité de coupure | Pouvoir de coupure amélioré, up to 200kA@400V |
| G | Type de voyage | Déclencheur électronique, short‑circuit protection adjustable from 1–10 × In |
| N | Connexion | Bornes à vis, with phase barriers for safe and reliable connection |
| 10 | Nombre de pôles | 3 poteaux (3P3d), for three‑phase motor protection circuits |
- Core Technical Data
| Article | Spécification | Remarques |
| Courant opérationnel nominal (Dans) | 400UN (fixé) | For 200kW three‑phase induction motors at 400V |
| Tension nominale (Ue) | 690V et | For medium‑high voltage industrial motor control systems |
| Tension d'isolation nominale (Interface utilisateur) | 1000V et | Higher than operating voltage, large safety margin |
| Capacité de rupture ultime (ICU) | 200kA à 400 V | Enhanced breaking capacity for heavy short‑circuit faults |
| Poteaux | 3 poteaux (3P3d) | Standard three‑phase motor protection |
| Caractéristique du voyage | Magnetic only (short‑circuit protection only) | Voyage électronique, short‑circuit adjustable 1–10×In; must be used with overload relay |
| Opération | Rotary ON/OFF actuator | Manual control, simple and clear |
| Montage | Panel mounting | Suitable for control cabinet integration |
| Degré de protection | IP30 | Standard for switchgear installation |
| Norme applicable | IEC 60947‑4‑1 | International standard for motor protection devices |
- Principales fonctionnalités & Applications
Main Advantages
- Ultra‑high breaking capacity: 200kA à 400 V, 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
Applications typiques
Large industrial motor control centers (Centre multicompte), 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, exploitation minière, paper and other heavy industries
Large continuous‑duty equipment: compresseurs, les fans, pompes
Main drive motors in production lines with frequent starting and fluctuating loads
- Modèles de remplacement
Upgrades / Remplaçants (Même marque)
| Modèle | Key Data | Caractéristiques | Application |
| 3VA2240‑0MS32‑0AA0 | 400UN, 200kA à 400 V, 3P., voyage électronique | Upgrade replacement for 3RV1, new 3VA2 series MCCB | New projects requiring higher performance and communication |
| 3RV1374‑7KN10 | 400UN, 200kA à 400 V, 3P., voyage électronique | Different terminal configuration | Same rating, different connection requirements |
| 3RV1374‑7GN20 | 400UN, 200kA à 400 V, 4P., voyage électronique | 4‑pole version with neutral protection | Three‑phase four‑wire systems needing neutral protection |
Cross‑Brand Alternatives
| Marque | Modèle | Matching Specifications |
| ABB | Tmax T4H 400 PR221DS | 400UN, 100kA rupture, voyage électronique, 3P. |
| Schneider | TeSys GV4‑ME400 | 400UN, 100kA rupture, thermal‑magnetic trip, 3P. |
| Mitsubishi | NF400‑SEW | 400UN, 100kA rupture, voyage électronique, 3P. |
- Coordination des protections: This unit provides magnetic only (short‑circuit) protection and must be used with an overload relay (par exemple. 3RU series) for complete motor protection.
- Adaptation du pouvoir de coupure: Selected based on system short‑circuit calculation; 200kA suits most industrial grids.
- Câblage: 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.
- Accessoires: Contacts auxiliaires, alarm contacts available for motor status monitoring and control.
