Overview
The Siemens B25833-U6156-A0009 capacitor is a precision film capacitor from Siemens’ proven MKV series, designed for demanding industrial and commercial applications requiring high voltage AC operation. With a capacitance value of 15µF and ±6% tolerance, this unit operates reliably at 660V AC across both 50Hz and 60Hz frequency standards. The hermetically sealed aluminum construction ensures long service life and stable performance in harsh electrical environments.
Key Features
- Capacitance: 15µF ±6% tolerance for stable operation across voltage variations
- Polypropylene in oil dielectric technology provides excellent voltage withstand and low dissipation factor
- Hermetically sealed aluminum case with ceramic plate connector for industrial durability
- Dual frequency rated: 50Hz and 60Hz AC operation
- Quick-connect plated brass terminals for reliable electrical connection
- Proven reliability in motor run, power factor correction, and RFI filtering applications
Technical Specifications
- Capacitance: 15µF
- Tolerance: ±6%
- Rated Voltage: 660V AC
- Frequency: 50/60Hz
- Dielectric: Polypropylene in oil
- Case Style: Hermetically sealed aluminum
- Terminal Type: Ceramic plate with plated brass quick-connect pins
- Manufacturer: Siemens/Epcos
- Series: MKV
- Condition: New – No original packaging
Typical Applications
The B25833-U6156-A0009 is suitable for:
- Motor run capacitors in three-phase and single-phase AC motor circuits
- Power factor correction banks and energy efficiency circuits
- RFI and EMI filtering in industrial power distribution equipment
- Industrial switching and control circuit applications
- Legacy equipment replacement and refurbishment
Compatibility & Replacements
The Siemens MKV series, including the B25833 family, is recognized across the industry for direct interchangeability with comparable film capacitors of the same voltage and capacitance ratings. When specifying replacements, ensure equivalent voltage rating (660V AC minimum), capacitance value (15µF), and frequency compatibility (50/60Hz). The polypropylene in oil construction is critical for motor run applications, as it provides superior voltage handling and thermal stability compared to standard paper or film dielectrics. Cross-reference with equivalent Epcos, KEMET, or other industrial film capacitors only after confirming electrical and mechanical compatibility.
