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LIGHTNING DC

LIGHTNING DC

LIGHTNING DC

Product catalog summary
Overview
The Lightning DC circuit breaker, incorporating the NDC Circuit Breaker, combines innovation with over 50 years of design and manufacturing experience. It offers optimal safety, reliability, and high-speed performance, making it an ideal solution for DC requirements.

Key Features
  • Proven technology with minimal maintenance and a service life exceeding 30 years.
  • Compact design with high-speed operation and direct overload/electrical tripping.
  • Simple mechanism without a mechanical latch, ergonomic truck isolation, and interlocking.
  • Enhanced electrical and mechanical endurance with a patented arc transfer coil.
  • Bi-directional current interruption and durable main contact material (silver tungsten carbide).

Specifications
  • Rated Voltage: 900V/1800V DC
  • Rated Service Current: 4000/6000/8000 A
  • Nominal Voltage: 750V/1500V DC
  • Power-Frequency Withstand Level: 9 kV
  • Rated Short-Time Withstand Current: 100/71 kAp/kA for 250ms
  • Rated Short-Circuit Current: 180/125 kAp/kA
  • Mechanical Endurance: 50,000 operations
  • Rated Insulation Voltage: 1.8/3 kV
  • Auxiliary Operating Supply: 50 V DC (other options available)

Mechanical Features
  • Patented arc transfer system prevents internal contamination.
  • Cold Cathode Arc Chute Assembly dissipates arcs, and the transfer coil aids in low current interruption.
  • Magnetic Latch mechanism provides high-speed tripping.
  • Magnetic Actuator uses a solenoid plunger for contact closure and latch reset.
  • Direct Acting Release trips the breaker on overload.

Standards and Patents
  • Complies with BS EN 50123-1: 2003, BS EN 50123-2: 2003, BS EN 50123-6: 2003, ANSI C37.14: 2002, ANSI C37.16: 2000, ANSI C37.20.1: 2002.
  • Patents: GB2347272, GB 2369246 B.

Weights
  • 900V DC 4000A Feeder panel: 580kg (1276lbs)
  • 1800V DC 4000A Feeder panel: 620kg (1364lbs)
  • 6000A Feeder panel: 600kg (1320lbs) / 640kg (1408lbs)
  • 6000A Rectifier panel: 600kg (1320lbs) / 640kg (1408lbs)

Testing
The circuit breaker enclosure has passed an internal arc withstand test according to IEC 60694: 2002 and IEC 62271: 2003 requirements.
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Catalog excerpts

LIGHTNING DC-1

BRUSHTRUST. WELL EARNED. Incorporating the NDC Circuit Breaker The BRUSH Switchgear Lightning product, incorporating the high speed NDC Circuit Breaker utilises the award-winning magnetic actuator technology and provides an innovative DC switchgear solution for a variety of markets and demanding applications. Combining innovation with 50 years of DC circuit breaker design and manufacturing experience, the Lightning offers optimal safety, reliability and high speed performance - the ideal solution to your DC requirements. Key Features • Superior proven technology with minimal maintenance • A long service life designed to exceed 30 years • Superior compact design concept and operating mechanisms • High speed operation, direct overload and electrical tripping • Simple, reliable mechanism with no mechanical latch • Ergonomic, intuitive truck isolation and interlocking • Enhanced electrical and mechanical endurance • Patented Arc transfer coil • Fully bi-directional current interruption • Hard wearing main contact material (silver tungsten carbide) ensuring long life • Integrated operation with a wide range of protection relay options ** As defined in BS EN50123-1: 2003, the critical current quoted is the current with the longest arcing time. At 900V/25A the arcing time is approximately 330ms

 Open the catalog to page 1
LIGHTNING DC-2

The circuit breaker enclosure has been subjected to an interna arc withstand test in accordance to the requirements of IEC 60694: 2002 and IEC 62271: 2003 Typical Weights 4000A Feeder panel 6000A Feeder panel 6000A Rectifier panel NDC Circuit Breaker Mechanical Features The patented arc transfer system prevents internal contamination of the circuit breaker compartment and cubicle. The Cold Cathode Arc Chute Assembly (1) dissipates all arcs whilst the transfer coil (2) provides additional magnetic flux across the contact gap, assisting with the interruption of low currents that would otherwise...

 Open the catalog to page 2

Archived catalogs

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.