🔹 Power Contactor – Siemens 3TS17220AP058K (3TS Series, 3-Pole AC Coil)
The Siemens 3TS17220AP058K is a capacitor duty power contactor from the 3TS series, designed for switching capacitor banks in power factor correction (PFC) systems. It is used in industrial electrical installations where controlled switching of capacitor loads is required to improve power factor and overall energy efficiency.
This contactor is specifically engineered to handle high inrush currents during capacitor switching using a pre-insertion resistor mechanism. It ensures safe operation, reduced contact wear, and long electrical life, making it suitable for capacitor banks, MCC panels, and industrial power distribution systems.
🔹 Key Features
• Siemens 3TS Series capacitor duty contactor
• Model: 3TS17220AP058K
• 3-pole (3P) configuration for 3-phase systems
• AC coil operated design
• Designed for capacitor switching (AC-6b duty)
• High inrush current limiting with pre-insertion resistor system
• Reliable arc-quenching system for extended contact life
• Suitable for capacitor banks and PFC panels
• High electrical and mechanical endurance
• Compact industrial-grade panel mounting design
• Optimized for frequent switching operations
• Low maintenance requirement
• Stable performance in industrial environments
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3TS Capacitor Duty Series |
| Model Number | 3TS17220AP058K |
| Product Type | Capacitor Duty Power Contactor |
| Pole Configuration | 3 Pole (3P) |
| Coil Type | AC Coil |
| Application Category | AC-6b (Capacitor Switching) |
| Capacitor Rating | ~50 kVAr (415V class, typical for 3TS17220 frame) |
| Contact Configuration | 2NO + 2NC (typical for this frame size) |
| Mounting Type | Panel Mounting |
| Usage | Capacitor banks, PFC panels, industrial electrical systems |
| Brand | Siemens |
| Duty Type | Capacitor Switching / Industrial Use |
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