Est. 1963

Miniature Circuit Breakers: Protection for Global Applications

Miniature circuit breakers provide world class circuit protection. 

High quality 5S miniature circuit breakers from Siemens let you standardize your control panel design – using one product family for all UL and global applications.

 

 

 

FSJ4 Miniature Circuit Breakers for Applications Worldwide

 

Siemens 5SJ4 Miniature Circuit Breakers provide thermal-magnetic over-current protection and are intended for general industrial use as branch circuit or feeder protection. They are UL listed to UL 489, certified to Canadian standards CSA 22.2 No. 5.02, and CE marked to IEC/EN 60898 and IEC/EN 60497-2.

Download the 5SJ UL489 Miniature Circuit Breaker Product Guide »

 

FSY Miniature Circuit Breakers

 

Siemens line of 5SY and 5SP circuit protection devices are intended for use as per UL1077 and CSA 22.2 No. 235 and as circuit breakers per IEC/EN 60 947-2 and EN 60 898. Often used as a local disconnecting means inside the panel when a branch circuit protection device is already present, they allow users to quickly find the problem circuit without having to shut down all other circuits.

Download the 5SP and 5SY Supplementary Protection – UL 1077 Product Guide »

 

+ - Easier, faster, enlarged wiring space Click to collapse

  • Easier, faster, enlarged wiring space
  • Identical top and bottom terminals
  • Connection of incoming cables vis-à-vis of the busbar
  • Enlarged and easily accessible wiring space for the feeder cables
  • Comfortable insertion of the incoming cables into the terminal
  • Defined, visible and controllable connection of the feeder cables
  • Universal infeed with top and bottom busbar mounting options.

+ - Protection against contact with clear advantages Click to collapse

  • Integrated movable terminal covers located at the feeder cable input
  • The terminals are completely closed when screws are fully tightened
  • Effective protection against contact, also when the device is fully grabbed
+ - Flexible and no use of tools required Click to collapse

  • Manually operable quick-assembly and disassembly systems requiring no use of tools
  • Fast assembly and disassembly of 5SY supplementary protectors to and from the standard mounting rail.
  • All devices can be easily and comfortably replaced at any time.
+ - Removal from the assembly Click to collapse

Thanks to the combination of the various features stated above, 5SY supplementary protectors can be easily and rapidly removed from the assembly when circuits need to be changed - with these devices, removal of the busbar is no longer necessary.

 

 

Are you ready to expand your control panel?

Choose Siemens lines of 5SJ4 miniature circuit breakers,
5SY & 5SP supplementary protectors, accessories and busbars, 
which meet UL, CSA and IEC standards and carry UL, cUL, and CE markings.

 Contact your IES team

 

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