3WL air circuit breakers are particularly flexible. They come in only three sizes to cover the ratings from 250 A to 6,300 A, so they are uncomplicated and versatile.
That applies anywhere in the world, because along with the circuit-breakers to IEC standard 60947-2 we have versions with additional UL 489- and UL 1066- approbation. All models share a common design, they work in the same way, and they have the same mechanical accessories.
You benefit from planning dependability and worldwide usability with only one family of circuit-breakers.
Technical data
 Current rating: 630 A – 6300 A (IEC)
 Rated voltage AC/DC: up to 690 V / 1000 V (BG II-III)
 Three switching power classes : N / S / H
 Fixed-mounted or withdrawable-unit, design 3- and 4-pole
 Fulfills international norms: IEC, UL, CCC
 For temperatures up to 70°C
 Same mechanical accessoires for all frame sizes and markets
 Wide and practical overcurrent release
 Simple rated current adjustment by means of rating plug

The advantages at a glance
 Great flexibility through modularity
 Simple upgrading and retrofitting of the air circuit-breaker on-site
 Few components enable various functions for all applications
 More transparency through communication-capability
 Direct connection to Profibus DP via the Com10-module
 Easy access to Ethernet/Internet with BDA Plus for remote diagnostics and parameterization
 Usage of messages/measuring values through CubicleBUS-module
 Complete transparency with using energy management software, e.g. Simaris manager
 Worldwide application through various approvals
 All types with IEC, UL, CCC- approbations and marine classification
 Great economic efficiency through adjusted solutions
 Integration into the concept of low-voltage energy distribution
 Consistency and seemless interaction of products and systems
Areas of application
 As incoming and outgoing circuit-breaker, bus coupler and distribution switch in electrical systems
 For the switching and protecting of motors, capacitors, generators, transformators, busbars and cables
 Use as EMERGENCY-OFF switch in conjunction with an EMERGENCY-OFF device (DIN VDE 0113, IEC 60204-1)
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