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Desglose del código del modelo
| Segmento de código | Código | Definición |
| 3RT2 | 3RT2 | New-generation contactor de CA de siemens Serie SIRIO, replacement for legacy 3RT1 series |
| 26 | 26 | Talla S0, rated AC-3 current: 25A, compatible with 11kW motor at 400V |
| 1 | 1 | Coil type: AC-operated coil |
| AP | AP | voltaje de la bobina: 230V y, 50Hz standard mains supply |
| 0 | 0 | Configuración estándar: terminales de tornillo, 1Contactos auxiliares NA+1NC, sin opciones especiales |
- Especificaciones técnicas básicas
| Categoría | Parámetro | Observación |
| Especificaciones básicas | ||
| Tipo de producto | 3-pole AC power contactor | SIRIUS range, Grado de protección IP20 |
| Corriente de funcionamiento nominal | AC-3: 25A @400V; AC-1:40A @400V | AC-4:15.5A @400V |
| Potencia nominal | 11kW under AC-3 at 400V | For standard 3-phase asynchronous motors |
| Configuración de polos | 3 main poles + 1Contactos auxiliares NA+1NC | Built-in auxiliary contacts, no extra accessory required |
| Coil Data | ||
| Voltaje de la bobina | 230V y, 50Hz | Global standard industrial mains voltage |
| Consumo de energía de la bobina | Levantar:105Virginia; Sealed holding:12Virginia | Low-power design for energy saving |
| Mecánico & Datos ambientales | ||
| Dimensión general(L×An×Al) | 85mm×45mm×86mm | Compact footprint for cabinet space saving |
| Montaje | Montaje en carril DIN estándar | Cumple con EN 50022 |
| Ambient Operating Temp. | -25°C ~ +60°C | Wide temperature tolerance for harsh industrial environments |
| Termination | Terminales de tornillo | Secure connection suitable for repeated wiring |
| Resistencia eléctrica | 1,000,000 operaciones(AC-3); 10,000,000 operaciones(AC-1) | Long service life to cut maintenance cost |
| Aprobaciones | CE, UL, CSA | Globally accepted international safety certifications |
III. Full 3RT2026 Series Model List (S0 frame, 25Una calificación)
Sorted by coil voltage:
| Número de pieza. | Voltaje de la bobina | Contactos auxiliares | Termination | Special Feature |
| 3RT2026-1AP00 | 230V y | 1NO+1NC | Tornillo | Versión estándar |
| 3RT2026-1AP60 | 230V y | 1NO+1NC | Spring-cage | Quick wiring |
| 3RT2026-1AQ00 | 110V y | 1NO+1NC | Tornillo | Versión estándar |
| 3RT2026-1AQ60 | 110V y | 1NO+1NC | Spring-cage | Quick wiring |
| 3RT2026-1BB40 | 24En DC | 1NO+1NC | Tornillo | Versión estándar |
| 3RT2026-1BB60 | 24En DC | 1NO+1NC | Spring-cage | Quick wiring |
| 3RT2026-1BG40 | 48En DC | 1NO+1NC | Tornillo | Versión estándar |
| 3RT2026-1BH40 | 110En DC | 1NO+1NC | Tornillo | Versión estándar |
| 3RT2026-1BJ40 | 220En DC | 1NO+1NC | Tornillo | Versión estándar |
| 3RT2026-1AP00-1AA0 | 230V y | 1NO+1NC | Tornillo | Montaje vertical |
- Referencia cruzada & Replacement List
- Siemens Internal Obsolete Replacement
| Obsolete Part | Replacement Part | Motivo del reemplazo | Compatibilidad |
| 3RT1026-1AP00 | 3RT2026-1AP00 | 3RT1 discontinued; 3RT2 upgraded generation | Full interchangeability, identical mounting dimension |
| 3RT1026-1AP00-1AA0 | 3RT2026-1AP00-1AA0 | Same-series product upgrade | Full interchangeability |
| 3TF4322-0AP0 | 3RT2026-1AP00 | Outdated 3TF series, superior performance of 3RT2 | Minor cabinet modification needed for mounting |
- Cross-Brand Equivalent Options
| Marca | Modelo | Matching Score | Diferencias |
| TEJIDO | A16-30-01 | ★★★★☆ | Rated 16A < 25A, derated operation required |
| Electricidad Schneider | LC1D25M7C | ★★★★★ | Full equivalent:25A,230V y,1NO+1NC |
| Allen‑Bradley | 100-C25D*00 | ★★★★☆ | Slightly larger dimension, funciones idénticas |
| Eaton | DILM25-10 | ★★★★☆ | Only 1NO auxiliary contact; extra NC contact needed separately |
- Entorno de aplicación & Casos de la industria
- Recommended Application Fields
Factory Automation: 3-phase asynchronous motor control ≤11kW@400V for pumps, fans & conveyor systems
Electricidad del edificio & climatización: Air-conditioning units, ventilation blowers, fire fighting pumps
Tratamiento de agua & Wastewater: Sewage pumps, chemical dosing systems, filter equipment
Alimento & Bebida: Production line motors, mixing machinery, máquinas de embalaje
OEM Machinery: Máquinas herramienta, impresión & packaging equipment OEM matching
- Not Recommended Application Conditions
Heavy shock & vibration sites (shipboard, mining machinery): Anti-vibration base required if mandatory use
Ambientes con gases corrosivos (galvanoplastia, chemical plant): Sealed anti-corrosion contactor required
Ultra-frequent cycling loads (welding machine, rapid start-stop equipment): Select dedicated AC-4 rated contactor
High DC loads (motores de corriente continua, electrolysis equipment): Use dedicated DC-coil DC contactors
- Ejemplos de aplicaciones típicas
Caso 1: Blower Control for Small Sewage Treatment Plant
Equipo: 3 sets of 5.5kW aeration blowers, 3-fase 400V
Control configuration: 3RT2026-1AP00 + 3RU2016-1CB00 thermal overload relay + Siemens PLC
Ventajas: Tamaño compacto, integrated auxiliary contacts, simplified cabinet layout & bajo consumo de energía
Caso 2: Food Packaging Conveyor Line
Equipo: Multiple 3kW conveyor motors with 230V AC control circuit
Control configuration:3RT2026-1AP00 + 3RH2111-1AP00 auxiliary contact block
Ventajas: Fast installation, high reliability for humid food workshop environment
- Directrices de selección & Quick Coding Rules
Quick Selection Mnemonic
3RT2026 defined by 25A rated current
AP stands for 230V AC coil voltage
Standard 1NO+1NC with screw terminal wiring
Direct upgrade substitute for old 3RT1026
Perfect match for 11kW motor at 400V supply
Quick Coding Rules
- Model breakdown:3RT2(Serie)+026(25A)+1(bobina de CA)+AP(230V)+00(Standard build)
- Coincidencia actual:25A AC-3 =11kW@400V;40A AC-1 for resistive heating loads
- Regla de reemplazo:Direct drop-in swap from 3RT1026-1AP00 without mounting hole modification
- Terminal option:00=Screw terminal;60=Spring-cage terminal per site requirement
VII. Troubleshooting Guide
| Fault Symptom | Root Cause | Remedy |
| El contactor no logra entrar | No/low coil supply voltage | Check control circuit & measure coil input voltage |
| Excessive operating hum | Dust/oil contamination on core pole face | Clean core surface, inspect short-circuit ring |
| Severe contact erosion | Overload or frequent switching | Upgrade to higher rating contactor & optimize control logic |
| Overheated coil | Overvoltage or high ambient temperature | Stabilize input voltage & improve cabinet ventilation |
| Poor auxiliary contact conduction | Contact oxidation or mechanical wear | Clean contacts; replace contactor if heavily worn |
VIII. Cumplimiento de envíos aéreos & Certificaciones
Shipping Classification: Non-hazardous goods, no built-in lithium battery, compliant with IATA DGR
CE Approval: Complies with EN 60947-4-1, Cert No.:CE 0123
UL Approval: Complies with UL 508, File No.:E249461
RoHS Compliance: Conforms to Directive 2011/65/EU, restricted hazardous substance free
- Order Information
Código de pedido:3RT2026-1AP00
Minimum Pack Quantity:1 unit per carton
Período de garantía:12 meses
Recommended Spare Parts:3RU2016-1CB00(relé de sobrecarga térmica),3RH2111-1AP00(auxiliary contact block)
Application Scope of Siemens 3RT2026-1AP00 (AC-3 25A@400V, 11kilovatios, 230V AC Coil, 1NO+1NC Aux. Contactos)
Rated Application: 3-phase motor ≤11kW@400V; Resistive load max.40A(AC-1), DIN rail mount, 230VAC control circuit as standard.
- Priority Application Industries & Segments
1.1 climatización & Air Conditioning (Largest consumption volume)
- Cabinet air-conditioner & ventiladores del condensador:2.2~7.5kW centrifugal blowers
- Fresh air handlers, smoke exhaust & fire supplementary fans:3~11kW 3-phase fans
- Cooling tower & chilled water circulation pumps (4kW/5.5kW/7.5kW)
Matching: Paired with 3RU2016 thermal relay for motor overload protection, cabinet built-in installation.
1.2 Water Supply & Wastewater Treatment
- Sewage lift pumps, self-priming pumps & chemical dosing agitator pumps (1.5~11kW)
- Raw water booster pumps & filter backwash pumps for water purification plants
- Residential secondary water supply booster pumps, duty-standby start-stop control(single pump ≤11kW)
1.3 Envasado de alimentos & Light Industry Automation
- Packaging machine belt & film winding motors (0.75~5.5kW)
- Dough mixers & filling agitator motors
- Roller drive motors for filling production line & conveyor start-stop control
1.4 carpintería & Small Machine Tools
- Sanders, bench saws & drill spindle motors (3~7.5kW)
- Air compressor host control for 7.5kW/11kW screw & piston compressors
1.5 Logística & Warehouse Conveying Equipment
- Belt & roller conveyor drive motors (1.5~7.5kW)
- Small lifting equipment drive motors (motor load ≤11kW)
- Power control for mini shuttle machines in automated warehouses
1.6 Edificio & Civil Electrical Works
- Basement drainage pumps, civil defense ventilation fans, fire damper linked blowers
- Temporary site concrete mixers & construction dust extraction fans
1.7 Cold Chain Refrigeration
Start-stop control for cold room evaporator fans & chiller circulation pumps (3~7.5kW)
- Resistive Load Applications (AC-1:40A Max.)
Direct usage for heating tubes, drying oven heating circuits, incandescent lamp banks & cabinet space heaters; total single/3-phase resistive load ≤40A.
- Non-Recommended Operating Conditions
- High-frequency jogging (>60 cycles/min): Welders & frequent forward/reverse machines lead to rapid contact burnout; adopt dedicated AC-4 contactor instead
- Motors over 11kW@400V: Upgrade to higher rating 3RT2035/3RT2045 series
- Severe corrosive atmosphere (galvanoplastia, strong acid chemical workshop): Sealed anti-corrosion type required
- Heavy vibration environment(minería, vehicle-mounted construction machinery): Anti-vibration base or vehicle-specific contactor needed to avoid accidental coil dropout
- High-power DC loads (DC motor & battery circuit): Specially designed DC-coil DC contactor required
- Standard Matching Control Schemes
- Basic motor control circuit: 3RT2026-1AP00 + 3RU2016 thermal relay + 230VAC pushbutton start-stop
- Star-Delta starter: Same model contactor for main & star-point connections (star-delta startup for motor ≤11kW)
