SENTRON protection and switching devices
Tested protection and switching devices from the SENTRON portfolio ensure reliable low-voltage power distribution in infrastructure and railway applications. The perfectly coordinated components offer outstanding flexibility, convenience, and safety for the railway industry.
- Optional top or bottom infeed thanks to identical terminals
- Convenient entry thanks to large and easily accessible wiring space
- Rapid manual removal from the busbar assembly
- Vibration- and shock-proof in accordance with DIN EN 61373 and DIN EN 50155 "1B"
- Applicability at ambient temperatures from –40 °C to +70 °C, with max. humidity of 95 %
- Rated switching capacity: 10 kA AC
Vibration resistance:
- According to IEC 60068-2-6. 50 m/s² with 25 to 150 Hz, and 60 m/s² with 35 Hz (4 sec)
- According to EN 61373 Category 1, Class B
- Optional top or bottom infeed thanks to identical terminals
- Convenient entry thanks to large and easily accessible wiring space
- Rapid manual removal from the busbar assembly
- Vibration- and shock-proof in accordance with DIN EN 61373 and DIN EN 50155 "1B"
- Applicability at ambient temperatures from –40 °C to +70 °C, with max. humidity of 95 %
- Rated switching capacity: 10 kA AC and 1 kA DC
Vibration resistance:
- According to IEC 60068-2-6. 50 m/s² with 25 to 150 Hz and 60 m/s² with 35 Hz (4 sec)
- According to EN 61373 Category 1, Class B
- 5ST3 add-on components: can be combined with 5SY MCBs and 5SU1 RCBOs
- Signaling of the miniature circuit breaker’s contact position by the auxiliary switch (AS) – released by hand or due to fault
- Auxiliary switch version with test button for testing of the control circuit without switching of the miniature circuit breaker
- Rated switching capacity: 60 A
- Ambient temperatures: –25 °C to +55 °C
- Climate resistance: according to IEC 60068-2-30 28 cycles
- Enhanced comfort and safety due to improved design
- Comprehensive uniform accessories for additional functions
- Consistent busbar system concept for all RCCBs with N connection on the right or left
- Easy removal of individual equipment from the linked assembly
- Rated residual current: 30, 300 mA
- Quick and easy replacement thanks to fast manual removal of the RCCBs from the assembly
- Clear, visible and controllable connection of the supply line
- Convenient entry thanks to large and easily accessible wiring space
- Peak withstand current (> 1 kA) for safe operation
- Retrofitting of add-on components for miniature circuit breakers on the right side
- Rated residual current: 10, 30, 300 mA, rated current: 6 to 40 A
- Width: 2 WU
For all 10 kA versions up to 40 A:
- Full insulation through integrated, movable terminal covers in the area of conductor entries
- Replacement time savings thanks to rapid manual removal of the miniature circuit breakers from the assembly when changing the connections
- The marketsʹ most modular system
- Easy selection between manual / off / RC mode
- Easy connection to RCBOs, RCDs, MCBs, and other devices with adapters
- Rated voltages: 12 ... 30 / 177 ... 270 V AC or 12 ... 48 V DC
- Width: 2 WU
- Applicability at ambient temperatures from –40 °C to +70 °C
- Climate resistance: according to IEC 60068-2-30 28 cycles
- Vibration resistance: according to IEC 60068-2-6. 50 m/s² with 10 to 150 Hz
- Fuse links with combined indicator: fuse disconnection signaled by color change from red to white
- Insulated metal grip lugs embedded in upper and lower cover of the fuse link in plastic – for increased safety during replacement
- Imprinted sign for insulated grip lugs
- Rated breaking capacity: 25 kA DC
- Rated current: 2 to 315 A
- Contact blade: corrosion-free, silver-plated
- Climatic withstand capability: –20 °C up to +50 °C with 95 % relative humidity
- Extremely safe switching and long service life due to vacuum design
- Many years of manufacturing experience, with more than 5 million interrupters supplied
- Customer-specific development according to OEM customer requirements
- High product variance for different switching applications
Use in:
- Medium- and low-voltage switching devices
- Medium-voltage contactors, circuit breakers, load-break switches and switch disconnectors for railway applications
- Rated voltages up to 27.5 kV, frequencies of 16.7 – 60 Hz, rated current up to 2500 A
- Rated short-circuit breaking current up to 50 kA
- 1-, 2- and 3-pole version
- Vertical pole assembly fixed to operating mechanism via post insulators
Customer benefits:
- Compact & high mechanically stable design
- Various additional equipment available
- Economical integration
- Competent consultation by our experts