General information about UNELEC Air Circuit Breakers

SPECTRONIC SP Air Circuit Breakers 

Circuit Breakers Nominal ratings 400A to 2500A -Series SP 

Rated short circuit breaking capacity Icu 55 to 60kA (415V)


Complete range 

  • Fixed or withdrawable versions 
  • 3 or 4 poles 
  • Electrical or manual control 
  • 2 Frame Sizes:  Frame 1 (400A to 1600A), Frame 2 (2000A to 2500A)  

Our Models (See below for details)

  • Unelec Spectronic SP 800
  • Unelec Spectronic SP 1000
  • Unelec Spectronic SP 1250
  • Unelec Spectronic SP 1600
  • Unelec Spectronic SP 2000
  • Unelec Spectronic SP 2500


The SPECTRONIC range combines the legendary reliability of our Air Circuit Breakers with: 

  • A design adapted to the new panel boards 
  • Protection relay RV 23 , RV+

Main advantages 

  • Clever design combining longevity and reliability 
  • Maximum service total selectivity is ensured, even at closing on short circuit 
  • Simple and efficient servicing on site 
  • Safety ensured by fully visible breaking.
  • Fault monitoring
  • Fault history 


  • The circuit breakers SP are built according to the following standards:
  • IEC 947 2 BS CEI NBN NFC and VDE.
  • Certification Bureau Véritas Lloyd's Register of Shipping,ASEFA. 
  • Certification Germanischer Lloyd (in accordance with IEC 157 1)


  • Class I (standard) Relative humidity of 80% at 40 C° (Hot and dry or damp climate of temperature zones). 
  • Class II Relative humidity of 95% at 45 C°(hot and damp climate). 



Additional information