The IR4000F Series is a range of single pole, air, high speed circuit breakers for DC applications with air breaking, available in three voltage ratings of 900, 1800 and 3600 Vdc and four thermal currents of 3000 or 4500 or 6000 or 8000A.

This is the right choice when a powerful solution is required for Fixed Applications in both railway and industry sectors (IEC 61992 and IEC60947).

• Same breaker with two different holding systems: Holding coil or Permanent magnet in order to get a monostable or bistable device.
• Current interruption direction: bi-directional DC
• Direct acting over-current trip device: uni-directional or indipendant bi-directional
• DC coil controlled with Electronic power saving system

• Offer detailed in 20 sizes to let you choose the best solution, and fit any requirements with a catalogue product.
• Ceramic fins combined with arcing contacts technology ensure highest breaking and endurance performances.
• Electrical arc safely contained inside the arc chute, reduced insulation distances towards external metallic parts.
• Motor-operated closing to require low closing power consumption.
• Standard Current driving & holding system performed with an electronic board to get mechanical and tripping performances independently from power supply voltage and temperature fluctuations.
• The extended working range of the power supply exceeds the limits prescribed by the standards with no external DC/DC converter.
• Reed type auxiliary contacts technology achieves the most reliable feedback signal thanks to the vacuum protection against dust, pollution and oxidation.

STANDARD

• Modular design to configure IR4000F in different versions by changing the holding system:
  • Monostable version with Holding Coil;
  • Bistable version with Permanent Magnet;
• Fixed Application version: screwed input bars
• Independent Symmetric Bidirectional direct acting over-current trip device
• Control Voltage: Extended Range from 24 to 110 Vdc
• 5 NO + 6 NC reed auxiliary contact block

CUSTOM

• Withdrawable version: contact fingers input bars
• 1800 and 3600Vdc Dual voltage arc chute
• Direct acting over-current trip device: Unidirectional or Asymmetric Bidirectional
  • All brand Low voltage connectors

• Opening manual handle
• Opening shunt trip
• Fast Opening shunt trip
• Fast opening control device FOD
• Mechanical/Electrical counter
• LV Connector, Movable part
• Second shunt trip opening coil