🔹 Product Description
The Siemens 3TS21100AF058K 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 panels where controlled switching of capacitor loads is required to improve power factor and optimize energy efficiency.
This contactor is built with a pre-insertion resistor mechanism that helps limit high inrush current during capacitor switching. It ensures safe operation, reduced electrical stress, and longer service life, making it suitable for capacitor banks, MCC panels, and industrial power distribution systems.
🔹 Key Features
• Siemens 3TS Series capacitor duty contactor
• Model: 3TS21100AF058K
• 3-pole (3P) configuration for 3-phase systems
• AC coil operated design
• Designed for capacitor switching (AC-6b duty)
• Pre-insertion resistor system for inrush current limiting
• High electrical and mechanical endurance
• Strong arc-quenching system for extended contact life
• Suitable for capacitor banks and PFC panels
• Compact industrial-grade panel mounting design
• Reliable performance under frequent switching cycles
• Low maintenance requirement
• Stable operation in industrial environments
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3TS Capacitor Duty Series |
| Model Number | 3TS21100AF058K |
| Product Type | Capacitor Duty Power Contactor |
| Pole Configuration | 3 Pole (3P) |
| Coil Type | AC Coil |
| Application Category | AC-6b (Capacitor Switching) |
| Capacitor Rating | ~7 kVAr (typical class based on 3TS11100 frame family) |
| Mounting Type | Panel Mounting |
| Usage | Capacitor banks, PFC panels, industrial electrical systems |
| Brand | Siemens |
| Duty Type | Capacitor Switching / Industrial Use |
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