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Tụ Bù FRAKO LKT 5-400-DB
⚡ Overview of FRAKO LKT 5‑400‑DB
Series & Type: Part of FRAKO’s LKT…‑DB “Basic” series of three-phase reactive power compensation capacitors.
Rated Capacity: 5 kVAr at 400 V and 50 Hz (Basic type; corresponds to 6.0 kVAr at 60 Hz). Available also at other voltages (230 V, 300 V, 415 V etc.) with lower kVAr values.
Capacitance: Approx. 3 × 33.2 µF, suitable for reactive power compensation.
📐 Physical & Electrical Specs
Dimensions: Ø 60 mm × H 150 mm
Weight: ~0.59 kg
Construction: Cylindrical aluminum housing with M12 mounting bolt. Utilizes metallized polypropylene winding (self-healing dielectric). Frako
Standard Certifications: Complies with IEC/EN 60831‑1 and 60831‑2, CE, UL, UKCA, EAC, CSA.
🛠 Key Features & Benefits
Basic Series Line: Designed for standard industrial power factor correction applications; balance between performance and cost.
Pressure Detection & Safety: Integrated overpressure disconnector (safety fuse) to isolate in event of dielectric failure.
Self-Healing Dielectric: Metallized polypropylene film recovers after localized breakdown, improving longevity and reliability.
📊 Performance Table (at 50 Hz / 400 V)
| Voltage | Rated kVAr | Comments |
|---|---|---|
| 230 V | 1.66 kVAr | Basic capacity |
| 300 V | 2.8 kVAr | |
| 400 V | 5.0 kVAr | Main rating |
| 415 V | ~5.4 kVAr | Slight increase |
| 440 V | ~6.0 kVAr | Operating near upper limit |
At 60 Hz, performance increases slightly (e.g. ~6.0 kVAr at 400 V).
✅ Suitable Applications
Ideal for:
Reactive power compensation in three-phase distribution systems
Industrial installations needing cost-effective basic capacitors
Systems where compact footprint and light weight are required
ℹ Additional Notes
There are higher-capacity variants in the same DB lineup (e.g. 6.25, 7.5 kVAr) and alternate series like -DL, -DP and Heavy Duty for elevated performance demands. Dimensions and capacities scale accordingly.
Proper selection should consider ambient temperature, harmonic pollution, inrush current, and derating factors. FRAKO recommends selecting based on network analysis and expected conditions.
Would you like to see specifications for other variants (e.g. LKT 7.5‑400‑DB or LKT 10‑400‑DB), or need help matching a bank capacitor setup to your electrical system?
