3WL Air Circuit Breakers

3WL Air Circuit Breakers



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 ¨C 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¡ãC
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)