- Replaces the old SPI and SP-B+C series with better functionality
- T1 and T2 device for Lightning protection class I & II
- Spark gap based > leakage current free
- Available as 3-pole, 4-pole and 3+N configuration
- Auxiliary contact built in
- Coded, replaceable inserts
- Meets the latest standards (IEC/EN-61643)
- More compact and lower cost than the SP-B+C series