Technical Specifications:
- Maximum continuous operating voltage (L-N): 275 V
- Maximum continuous operating voltage (N-PE): 255 V
- Nominal voltage AC: 50-60 Hz
- Nominal discharge current (8/20): 25 kA
- Voltage protection level at In (L-N): ≤ 1.5 kV
- Voltage protection level at In (N-PE): ≤ 2 kV
- Maximum back-up fuse: 315 A gL
- Response time (L-N): Not specified
- Response time (N-PE): Not specified
- Insulating material & flammability class: PC+FV; V-0PC+FG

Certifications and Standards:
- Designation according to EN 61643-11
- Designation according to IEC 61643-1
- Degree of protection: IP 20
- RoHS compliant

Performance Characteristics:
- Lightning impulse current (10/350) (L-N): 100 kA
- Lightning impulse current (10/350) (N-PE): 100 kA
- Following current (L-N): Not specified
- Following current (N-PE): Not specified
- Short circuit withstand: Not specified

Physical Features:
- Dimensions: 162 mm x 70 mm

Product Information:
- Model: CSH4-25/400 TT
- Degree of protection: IP 20
- Indicative product image provided