The HBL1 B C D Surge Protection Device is used in TT, TN-S, TN-C and IT power supply systems with AC 50/60Hz and rated voltage up to 380V. It provides surge protection for indirect and direct stroke instantaneous voltage, with MC and MD protection modes.
Structure and Installation
- One-port SPD with electric-shock protection for indoor installation.
- Built-in disconnector automatically disconnects the SPD from the grid when an overheat or breakdown fault occurs.
- Indicator window shows green during normal operation and red during fault condition.
- SPD+NPS zero-ground protection module applies to TT and TN-S systems for 1P+N, 2P+N and 3P+N configurations.
- Standard 35mm track installation; connected copper wire range is 4-35mm2 and length should be less than 500mm.
Main Parameters
- HBL1-C: class 2 incoming protection, Imax 40kA and In 20kA.
- HBL1-D: class 2 incoming protection, Imax 20kA and In 10kA.
- Working environment: -40C to +70C, humidity ≤90%.
Model Meaning
Installation and Outline Size
