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Lightning protection box
Product Detailed
Lightning protection box: B,C grade protection, suitable foe various power supply system of AC 50-60Hz and 220/380V below.
Lightning protection box technical data:
Type | TNR-20SZ | TNR-30SZ | TNR-40SZ | TNR-60SZ | TNR-100SZ |
Nominal discharge capacity (KA) | 20 | 30 | 40 | 60 | 100 |
Max discharge capacity (KA) | 40 | 60 | 80 | 100 | 150 |
Continuous running voltage (V) | 275~420 | 320~420 | 385~420 | 385~420 | 385~420 |
Protection level (KV) | < 1.9 | < 2.0 | < 2.4 | < 2.6 | < 3.5 |
Sectional area of lead-in power wire (mm2) | >10 | >16 | > 16 | > 25 | > 25 |
Sectional area of grounding wire (mm2) | > 16 | > 16 | > 16 | > 25 | > 25 |
Outline size (mm) | 280*210*105 | 340*240*130 | |||