Circutor R2H547 CLZ-FPT-44/6.25-HD Three-Phase Tubular Power Capacitor

The Circutor CLZ-FPT-44/6.25-HD (code R2H547) is a three-phase tubular power capacitor from the Heavy Duty range, rated at 6.25 kvar at 440 V and 5 kvar at 400 V, operating at 50 Hz. It uses a dry-type aluminum tubular enclosure cooled by nitrogen gas, and is purpose-built for reactive power compensation in installations subject to extreme environmental conditions.

Technical specifications:

• Model: CLZ-FPT-44/6.25-HD
• Circutor code: R2H547
• EAN: 8433059223144
• Terminal type: Faston (F)
• Operating frequency: 50 Hz
• Reactive power at 400 V: 5 kvar
• Reactive power at 440 V: 6.25 kvar
• Use voltage: 400 V / 440 V (three-phase)
• Construction: Dry-type, tubular
• Enclosure: Aluminum
• Thermal management: Nitrogen gas refrigeration (inert, non-flammable); natural or forced cooling depending on cabinet design
• Dimensions (W x H x D): 63.5 x 188 x 63.5 mm
• Weight: 0.615 kg
• Dielectric losses: less than 0.2 W/kvar
• Total losses: less than 0.4 W/kvar
• Capacitance tolerance: -5 / +10%
• Maximum phase current: 1.8 x In
• Maximum transient current: 400 x In
• Insulation voltage: 440 V
• Dielectric test voltage: 3 / 12 kV
• Discharge resistance: reduces capacitor voltage to below 50 V within 1 minute
• Voltage surges: up to 10% for 8 h/24 h; 15% for 30 min; 20% for 5 min; 30% for 1 min
• Fastening: M12 screws with earth conductor
• Max. relative humidity: 95% (non-condensing)
• Installation position: Vertical or horizontal; minimum 2 cm spacing between units
• Temperature class D: max 65 °C, daily average 45 °C, annual average 35 °C, minimum -50 °C
• Standards: IEC 60831-1/2, VDE 0560, UNE 20827, UNE 20010, BS 1650
• Protection: Dielectric regeneration and expansion system

Features and benefits:

• Temperature class D rating covers a working range from -50 °C to a maximum of 65 °C, making this unit suitable for the most extreme industrial environments without derating.
• Nitrogen gas refrigeration is inert and non-flammable, delivering effective thermal management while eliminating the fire and environmental risks of liquid dielectrics.
• Total losses below 0.4 W/kvar limit self-heating, preserve dielectric life, and reduce energy dissipation compared to higher-loss designs.
• Compact 63.5 x 188 x 63.5 mm aluminum tubular body with M12 fastening points and integral earth conductor simplifies mounting in standard capacitor bank enclosures.
• Accepts both vertical and horizontal installation with a minimum 2 cm gap between units, giving panel designers flexible layout options in space-constrained cabinets.

Applications:

• Reactive power compensation in static or variable capacitor banks on 400 V or 440 V three-phase industrial networks at 50 Hz.
• Power factor correction in rough environments with elevated temperatures, humidity up to 95%, or other harsh operating conditions.
• Replacement of standard capacitors in installations where Heavy Duty service life and high-temperature resistance are priority requirements.
• Switchgear panels, motor control centers, and distribution boards requiring compact three-phase reactive compensation.

Also known as: Circutor CLZ-FPT-44/6.25-HD, CLZ-FPT-44/6.25-HD R2H547, R2H547 capacitor, three-phase tubular power capacitor Heavy Duty, CLZ-HD 6.25 kvar.