Description

PFC2-100kVAR | 3-Phase 100kVAR Power Factor Correction Capacitor Switch | 415V

The PFC2-100kVAR is a high-performance 3-phase Power Factor Correction (PFC) capacitor switch designed to provide fast, reliable, and efficient switching of capacitive loads in industrial power factor correction systems. Using advanced two-leg (2/3rds) control technology, the PFC2 Series significantly reduces the high inrush currents associated with conventional contactor-based capacitor switching while eliminating mechanical wear and electrical arcing.

Designed for 100kVAR capacitor banks operating on 415V three-phase supplies, the PFC2-100kVAR utilises solid-state switching technology, allowing rapid and repetitive capacitor switching without contact degradation. Controlled by an 8–24V DC input signal, the unit incorporates automatic over-temperature protection, high-speed semiconductor fuses, integrated fan cooling, comprehensive fault monitoring, and LED status indication for dependable long-term operation.

Ideal for industrial environments where power factor changes rapidly, the PFC2-100kVAR improves energy efficiency, reduces reactive power charges, and enhances electrical system performance.

Key Features

• 100kVAR three-phase capacitor switching
• Two-leg (2/3rds) control technology
• Designed for Power Factor Correction (PFC) systems
• Reduces capacitor inrush current
• Eliminates contact arcing and mechanical wear
• Fast solid-state switching for repetitive operation
• Controlled switch-off minimises flicker and RFI
• 8–24V DC control input
• Automatic over-temperature protection with auto reset
• Integral high-speed semiconductor fuse protection
• Integrated cooling fan
• LED status and fault indicators
• Voltage-free alarm relay output
• Compact IP20 enclosure
• Suitable for capacitor banks with or without detuning chokes

Technical Specifications

Electrical

• Power rating: 100kVAR
• Current rating: 150A
• Supply voltage: 415V RMS ±10%
• Frequency: 50/60Hz

Control Input

• Control signal: 8–24V DC
• Compatible with:
  • Common 0V
  • Common +VE
  • Open collector
  • Volt-free contact

Alarm Relay

• Voltage-free relay contacts
• Rating: 125V AC @ 2A

LED Status Indicators

• Green: DC power ON
• Orange: Signal enabled
• Red: Fault indication
• Red/Orange: Capacitors discharging

Protection Features

Over-Temperature Protection

• Trip temperature: 90°C ±1°C
• Automatic reset: 85°C ±1°C

Phase Loss & Fuse Failure

• Alternating red and orange LED indication

Sensor Loss Detection

• Equal interval flashing LED

Fault Status

• Continuous 1.5-second flashing indication

Cooling

• Integrated 24V DC cooling fan
• Fan switch-on temperature: Approximately 55°C

Cable Connections

Power

• Supply
• Load
• Earth

Terminal capacity: 35mm² rising clamp terminals

Recommended cable size:

• 100kVAR: 50mm²

Signal Connections

• Alarm relay: 2.5mm² rising clamp terminal
• Control signal: 2.5mm² rising clamp terminal

Terminal Torque

• 3.2–3.7Nm
• (Power terminals)

Protection

• IP20

Fuse Protection

• 200EET (200A)
• High-Speed Semiconductor Fuse or equivalent

Environmental

• Maximum operating temperature: 65°C

Mechanical

Dimensions

• 270mm (D) x 250mm (W) x 130mm (H)

Mounting

• 4 × 4.5mm keyhole fixing slots
• Fixing centres: 227mm × 200mm

Weight

• 5.6kg

Applications

The PFC2-100kVAR is suitable for 3-wire, three-phase floating-star or closed-delta capacitive loads, including capacitor banks fitted with or without detuning chokes.

Typical applications include:

• Industrial Power Factor Correction systems
• Automatic capacitor banks
• Manufacturing facilities
• Welding plants
• Crane systems
• Lift installations
• Wind power generation
• Renewable energy systems
• Heavy industrial machinery
• Electrical distribution panels
• Commercial power management systems

Benefits

• Dramatically reduces capacitor inrush current
• Eliminates mechanical contact wear
• Allows rapid and frequent capacitor switching
• Improves power factor correction efficiency
• Minimises electrical flicker and RFI
• Extends capacitor bank service life
• Improves overall electrical system reliability
• Reduces maintenance requirements
• Suitable for demanding industrial environments

Safety Information

Warning:

• Isolate the electrical supply before removing the cover.
• The enclosure and heatsink may become hot during operation.
• Do not obstruct or cover the ventilation openings.
• Installation should be carried out by suitably qualified personnel using appropriate electrical protection devices.