Contattore,interruttore automatico,inverter solare,contatore elettrico,batterie solari
ABB1SFL647088R7011AF1250H-30-11 (3-Pole Contactor)
- Model Breakdown and Meaning
| Part of Model | Codice | Detailed Description |
| Product Code | 1SFL647088R7011 | Official ABB part number for unique identification |
| Serie | AF1250H | AF series 1250A contactor; H = high-performance version with higher short-circuit withstand capability |
| Main Poles | 30 | 3 poli, all main contacts NO (3NO), for 3-phase circuit control |
| Contatti ausiliari | 11 | 1 NO + 1 NC auxiliary contacts for control circuits and status monitoring |
| Bobina | 70 | Bobina ad ampio raggio, suitable for 100–250V AC/DC, 50/60Hz universal |
Full Standard Model: ABB AF1250H-30-11-70 (1SFL647088R7011 is the official material code)
- Key Parameters and Specifications
Electrical Specifications
| Articolo | Specifica |
| Corrente operativa nominale (AC-1) | 1260A at 400V, 1210UN (UL universal) |
| Tensione operativa nominale | Up to 1000V AC (CEI) / 600V e (UL) |
| Potenza del motore (AC-3) | 450kW a 400 V, 225kW at 230V |
| Tensione della bobina | 100–250 V CA/CC, wide-range design, AC/DC universal |
| Configurazione del contatto principale | 3-pole NO (3NO) |
| Configurazione dei contatti ausiliari | 1 NO + 1 NC (1NA+1NC) |
| Vita meccanica | Fino a 10,000,000 operazioni |
| Vita elettrica (AC-1) | 1,000,000 operazioni |
| Short-Circuit Withstand | Conforme all'IEC 60947-4-1, suitable for industrial power grids |
Caratteristiche fisiche
| Articolo | Specifica |
| Dimensioni | ca. 270(W)*350(H)*220(D)mm (standard) |
| Peso | ca. 28kg |
| Temperatura operativa | -25~+70C (standard environment) |
| Grado di protezione | IP20 (when installed in a control cabinet) |
| Montaggio | Bolt-mounted, fits standard electrical cabinets |
| Cablaggio | Circuito principale: copper bar connection; Circuito ausiliario: terminal connection |
- Applications and Selection Advantages
Recommended Applications
- Industrial Motor Control: Direct-on-line (DOL) starting, star-delta starting, soft starter bypass for large 3-phase induction motors
- Sistemi di distribuzione dell'energia: Low-voltage switchgear, busbar sectionalizing, capacitor bank switching
- UPS & Inverter Systems: UPS transfer, inverter output control, bypass circuit switching
- Industrial Automation Lines: Macchinari pesanti, metallurgical equipment, mining machinery control
- Renewable Energy Systems: PV inverter output control, wind turbine converter control
Vantaggi
Bobina ad ampio raggio: 100–250V AC/DC universal, reduces inventory, compatible with global grids
High-performance design: H version provides higher short-circuit withstand, improves system reliability
Progettazione modulare: Integrated main and auxiliary contacts, facile installazione, basso costo di manutenzione
Long service life: Mechanical life up to 10 milioni di operazioni, vita elettrica 1 milioni di operazioni
Energy saving & environmental protection: Electronic control coil, basso consumo energetico, low heat generation
- Alternative Models in the Same Series
| Modello alternativo | Differenza chiave | Applicazione |
| AF1250-30-11-70 (1SFL647001R7011) | Standard performance version, no H marking | General industrial applications with lower short-circuit requirements |
| AF1250H-30-11-11 | Coil voltage 24–60V AC/DC | Safety voltage control circuits, hazardous environments |
| AF1250H-30-02-70 | 2 NO auxiliary contacts | Control circuits requiring more NO auxiliary contacts |
| AF1250H-30-20-70 | 2 Contatti ausiliari NC | Control circuits requiring more NC auxiliary contacts |
| AF1250H-40-11-70 | 4-pole NO (4NO) | 3-phase 4-wire systems requiring neutral pole switching |
- Alternative multimarca
- Siemens
| Modello alternativo | Parametri chiave | Differenza chiave | Applicazione |
| 3RT2076-6AP36 | 1250UN, 3-palo, 1NA+1NC, 100–250 V CA/CC | Siemens 3RT series, highly compatible with ABB, matches S7 PLC systems | Automazione industriale, Siemens system integration |
| 3RT2076-6AP37 | 1250UN, 3-palo, 1NA+1NC, 24A DC | For safety voltage control, hazardous areas |
- Schneider Electric
| Modello alternativo | Parametri chiave | Differenza chiave | Applicazione |
| LC1D12500F7 | 1250UN, 3-palo, 1NA+1NC, 100–250V AC | Schneider TeSys D series, compatible with Modicon PLC | Power distribution, building automation |
| LC1D12500M7 | 1250UN, 3-palo, 1NA+1NC, 220V e | Standard voltage coil, fixed grid applications |
- Mitsubishi
Modello alternativo Parametri chiave Differenza chiave Applicazione SD-N125 1250UN, 3-palo, 1NA+1NC, 100–250 V CA/CC Mitsubishi SD series, conveniente, matches Mitsubishi PLC
- Mainstream Chinese Brands
| Modello alternativo | Parametri chiave | Differenza chiave | Applicazione |
| CHINT NC1-1250H/33 | 1250UN, 3-palo, 1NA+1NC, 100–250 V CA/CC | Cost-effective domestic, compatible with Chinese PLC | Progetti sensibili ai costi, localization |
| Delixi CJX2-1250H/33 | 1250UN, 3-palo, 1NA+1NC, 100–250 V CA/CC | Reliable domestic brand, good service | General industrial automation, SMEs |
- Replacement Selection Guide
- Sostituzione diretta (No System Change)
Top choices: Siemens 3RT2076-6AP36, Schneider LC1D12500F7
Motivo: Parameters match AF1250H-30-11, same auxiliary contacts, coil voltage compatible, no control circuit modification needed.
- Performance Upgrade (Improve Reliability)
Raccomandato: Siemens 3RT2076-6AP36 (with surge suppression), original ABB AF1250H-30-11-70
Improvement: Added surge protection, longer contactor life, reduced EMI.
- Cost Optimization (Domestic High-Value Solution)
Raccomandato: CHINT NC1-1250H/33, Delixi CJX2-1250H/33
Vantaggio: 30–50% lower price than imported brands, meets general industrial needs.
- Important Replacement Notes
- Corrispondenza attuale: Corrente nominale (AC-1) ≥ 1260A, motor rating (AC-3) ≥ 450kW at 400V.
- Tensione della bobina: Must match the original system (100–250 V CA/CC) to avoid coil burnout.
- Contatti ausiliari: Confirm quantity and type (1NA+1NC) to avoid program changes.
- Dimensioni di montaggio: Verify fit in existing cabinet to avoid re-drilling.
- Short-circuit withstand: For H-version, replacement must have equal or higher short-circuit rating.
ABB 1SFL647088R7011 AF1250H-30-11 is a high-performance 1250A 3-pole contactor. With its wide-range coil, lunga vita, and modular design, it is widely used in industrial motor control and power distribution. Alternatives are available within the ABB range and across brands. Siemens 3RT2076-6AP36 and CHINT NC1-1250H/33 are top imported and domestic choices respectively.
Complete Application Guide for ABB 1SFL647088R7011 AF1250H-30-11
- Posizionamento del prodotto & Caratteristiche principali
This is a high-performance H-version 3-pole 1250A contactor from ABB’s AF series, standard model AF1250H-30-11-70.
Corrente nominale: AC-1 1260A (400V) / 1210UN (UL); AC-3 450kW (400V)
High-performance H version: Higher short-circuit withstand for harsh industrial environments
Bobina ad ampio raggio: 100–250V AC/DC universal
Configurazione dei contatti: 3NON principale + 1Ausiliario NA+1NC
Extra-long life: 10 million mechanical operations, 1 million electrical operations
Built-in surge suppression: Protects coil and control circuit
- Industry Applications
- Industrial Motor Control (Core)
| Applicazione | Typical Equipment | Vantaggi |
| Large motor DOL starting | Pumps, tifosi, compressors ≤ 450kW (400V) | High short-circuit withstand, wide coil voltage |
| Star-delta main contactor | 630kW-class motors | 1250A capacity for heavy main circuits |
| Soft starter / VFD bypass | Bypass in normal operation | Long life for frequent switching |
| Reversing control | Cranes, winders, montacarichi | 3-pole suitable for 3-phase reversing |
- Distribuzione dell'energia & Infrastrutture
| Applicazione | Typical Equipment | Vantaggi |
| LV switchgear main control | Factory distribution panels | 1000V AC rated, 3-pole for 3-phase systems |
| Busbar sectionalizing | Plants, centri dati | High reliability for critical power nodes |
| Capacitor bank switching | Reactive power compensation | High current withstand for inrush currents |
| UPS / inverter output | UPS, PV/wind systems | Wide coil compatible with UPS power |
- Heavy Industry & Harsh Environments
| Applicazione | Typical Equipment | Vantaggi |
| Metallurgy | Rolling mills, forni, gru | -25~+70C, high short-circuit withstand |
| Mining | Montacarichi, crushers, trasportatori | Vibration-resistant, highly reliable |
| Petrochemical | Pumps, compressori, riscaldatori | Corrosion-resistant, long life for hazardous areas |
| Paper & Printing | Paper machines, printing lines | Precise control for continuous production |
- Renewable Energy & Transportation
| Applicazione | Typical Equipment | Vantaggi |
| Wind power | Converter output, yaw motors | Wide coil, withstands grid fluctuations |
| PV power | Inverter output, combiner boxes | High voltage rating, long outdoor life |
| Rail vehicles | Auxiliary power, AC compressors | Wide coil, shock & vibration resistant |
| Ships & offshore | Deck machinery, pompe, ventilazione | Wide temp range, alta affidabilità |
- Edificio & Infrastrutture
| Applicazione | Typical Equipment | Vantaggi |
| Large commercial buildings | HVAC, pompe dell'acqua, tifosi | Global grid compatibility |
| Data centers | Cooling, UPS bypass, genset transfer | High reliability for critical loads |
| Hospitals & airports | Emergency power, ascensori, pompe antincendio | Long life, low maintenance |
- Applications by Functional Requirement
- High-Reliability Applications
Critical production lines (automotive, semiconductor) requiring high MTBF
Safety systems: ascensori, gru, fire equipment
- Frequent Operation Applications
Automated lines (packaging, assembly) with high cycling rates
Movimentazione dei materiali: AGV charging, conveyor switching
- Global / Export Applications
Export machines requiring global grid compatibility
Multinational factories with unified component standards
- Space-Limited Applications
Compact control panels using modular design
- Selection Matching Guide
| Requisito | Priorità | Motivo |
| Direct control of 400V / 450kW motors | ★★★★★ | Perfect rating match, H-version handles starting inrush |
| Frequent starting (>1 milioni di operazioni) | ★★★★☆ | Long electrical and mechanical life |
| Global / multi-region projects | ★★★★☆ | 100–250V AC/DC universal coil |
| High short-circuit environments | ★★★★☆ | H-version provides enhanced short-circuit withstand |
| Progetti sensibili ai costi | ★★☆☆☆ | Standard AF1250-30-11 recommended instead |
- Unsuitable Applications
- DC main circuit control: Designed for AC; use dedicated DC contactors.
- Extra-high voltage: Not for systems above 1000V AC (per esempio., 1140V).
- Ultra-low-power loads: 1250A is oversized and inefficient.
- Explosion-proof areas: Standard version not certified; use Ex-certified models.
ABB 1SFL647088R7011 AF1250H-30-11 is a heavy-duty 1250A 3-pole contactor ideal for industrial motor control, power distribution, heavy industry, and renewable energy. It excels in applications requiring high reliability, frequent operation, and global compatibility. You may choose the standard AF1250-30-11 or cross-brand alternatives to balance performance and cost.
![NXC-65 from the Kunlun Series by CHINT Electric is a 3-pole AC contactor, rated at 65A in the NXC series. The full model is typically expressed as NXC-65 [Coil Voltage] [Frequency]](https://www.bestcontactor.com/wp-content/uploads/2026/04/ScreenShot_2026-01-30_132315_324-419x560.png "NXC-65 from the Kunlun Series by CHINT Electric is a 3-pole AC contactor, rated at 65A in the NXC series. The full model is typically expressed as NXC-65 [Tensione della bobina] [Frequenza]")
