EPCOS MKK440-D-25-02 B25673A4252A040 Capacitor (4 Pieces)

Product Specifications: PhaseCap Compact Capacitors MKK440-D-25-02 (B25673A4252A040)

Manufacturer: TDK

Series/Type: MKK440-D-25-02

Ordering Code: B25673A4252A040

Product Family: PhaseCap Compact Capacitors

Application: Power Factor Correction (PFC)

Construction:

• Dielectric: Polypropylene film
• Impregnation: Non-PCB, Semi-dry biodegradable resin
• Winding: Concentric, Wave cut
• Case: Extruded round aluminum can with stud
• Discharge Module: Integrated ceramic discharge module
• Safety Feature: Overpressure disconnector

Electrical Characteristics:

• Rated Capacitance (C_N): 3 x 137.1 µF
• Capacitance Tolerance: -5% / +10%
• Connection: Delta (D)
• Rated Voltage (V_N): 440 V AC rms
• Rated Frequency (f_N): 50 Hz / 60 Hz
• Reactive Power (Output) at 50Hz: 25.0 kvar
• Reactive Power (Output) at 60Hz: 30.0 kvar
• Rated Current (I_R): 33 A (at 50Hz) / 39 A (at 60Hz)
• Dielectric Loss Factor (tan δ₀): ~0.2 W/kvar (at 50 Hz)
• Energy Content (W_N): 80 Ws
• Series Resistance (R_S): 1.93 MΩ
• Insulation Resistance x Capacitance (R_is x C): 30,000 s
• Dielectric Loss Factor (tan δ) at 50 Hz: ≤ 0.45 W/kvar (without discharge resistor)

Maximum Ratings:

• Maximum Voltage (V_max, up to 8h daily): 480 V AC rms / 679 V peak
• Maximum Voltage (V_max, up to 1 min): 570 V AC rms / 806 V peak
• Maximum Current (I_max): 1.5 x I_R (including harmonics, overvoltages, and capacitance tolerance)
• Surge Current (I_S): 400 x I_R
• Impulse Test Voltage (V_{TC imp}): 8000 Vpk (Standard 1.2/50 µs impulse)

Test Data:

• Terminal to Terminal Test Voltage (V_TT): 950 V AC / 50 Hz for 10 s
• Terminal to Case Test Voltage (V_TC): 3000 V AC / 50 Hz for 10 s

Design Data:

• Dimensions (d x h): 116 x 200 mm
• Weight (approx.): 2.2 kg
• Impregnation: Non-PCB, semi-dry biodegradable resin
• Fixing: Threaded bolt M12
• Max. Torque (Al can stud): 10 Nm
• Mounting Position: Any

Climatic Category: -40/60

• Minimum Ambient Temperature (Θ_min): -40 °C
• Maximum Ambient Temperature (Θ_max): 60 °C
• Maximum Hot-spot Temperature (Θ_{hotspot max}): 85 °C
• Storage Temperature: -40 °C to +85 °C
• Humidity: Average relative humidity < 95%
• Degree of Protection: IP 20
• Maximum Altitude: 4,000 m

Mean Life Expectancy:

• t_LD (Temperature Class -40/C, Θ_HS ≤ 70°C): Up to 200,000 hours
• t_LD (Temperature Class -40/60, Θ_HS ≤ 70°C): Up to 150,000 hours
• Maximum Switchings per Year: 10,000

Terminals:

• Type: Optimized capacitor safety terminals, Isolated terminals
• Protection Degree: IP20
• Maximum Torque: 2.0 Nm
• Terminal Cross Section: 25 mm²
• Maximum Terminal Current: 80 A
• Creepage Distance (min): 12.7 mm
• Clearance (min): 9.6 mm

Safety:

• Mechanical Safety: Overpressure disconnector
• Maximum Short Circuit Current (AFC): 10 kA
• Discharge Resistor Time (to ≤ 75 V): ≤ 60 s

Reference Standards:

• IEC 60831-1/2
• UL 810-5th edition