Air Circuit Breakers 3WL

Flexibly Applicable and Communication-Capable

3WL air circuit breakers offer a very flexible applicability and integrated communication capability. They optimally meet the increased requirements placed upon air circuit breakers particularly with regard to the operation and monitoring of network processes in connection with electronic control systems. The quality of this range sets new standards worldwide.

With only three sizes, the 3WL air circuit breakers cover a power range from 630 A to 6300 A. Featuring a 3- or 4-pole design, they are suitable for applications up to 1000 V. All models are characterized by identical design – in fixed-mounted as well as withdrawable version – identical operation and identical comprehensive accessories. The particularity: In the upper performance range, the 3WL is the world’s smallest circuit breaker of its class.

Air Circuit Breakers 3WL

Program overview

  • Modular design and uniform accessories
  • 3 Size from 630 A to 6300 A
  • 3-or 4 pole design for applications up to 1,150 V
  • Full communication capability via PROFIBUS DP or Modbus RTU
  • Standards and approvals: IEC 60947-2, UL 489, CCC. Gost, climatic withstand capability in acc. with DIN
  • IEC 68 Part 30-2, shipbuilding approval

Advantages at a glance

  • Flexible and global applicability for temperatures up to 70 °C; no derating up to 55 °C
  • Easy planning, assembly and retrofitting through modular design with only 3 sizes, few components and uniform accessories
  • Full communication capability via PROFIBUS-DP or Modbus integrated communication concept with 3VL
  • Smallest circuit breaker on the market in the power range from 5000-6300 A
  • RoHS-compliant

International standards and approvals

  • IEC 60947-2
  • DIN VDE 0690 Part 1
  • Climatic withstand capability in acc. with DIN IEC 68 Part 30-2
  • CCC, Gost
  • Shipbuilding, e.g. GL, ABS, LRS, PRS For international applications, also versions in acc. with UL 489 are available. For 3WL air circuit breakers / non-automatic circuit breakers approved in acc. with UL 489 up to 5000 A, refer to catalog LV 16. (Order No. E86060-K1816-A101-A1)

Application areas

  • As incoming-feeder, distribution, coupler and outgoing-feeder circuit breaker in electrical systems
  • For the switching and protection of motors, capacitors, generators, transformers, busbars and cables
  • Devices in AC version are available as circuit breaker and non-automatic circuit breaker. Devices in DC version are available as nonautomatic circuit breaker.