FUJIBIN Surge & Lightning Protector Block FB100 – Surge protector with up to ~120 kA clamping capacity, DIN-rail mount, LED indicator — useful for basic surge protection in single-phase panels.
**Fujibin FB100 Lighting & Surge Protector Block / FUJIBIN FB 100 Lighting Protector & Surge Protector Block – Basic single-phase surge protection block designed to guard household circuits and devices.
FUJIBIN FB100 Lighting & Surge Protector Block – Another listing of the same model with similar protection aims.
Fujibin FB100 Lighting Protector Surge Protector Block Single Phase – Single-phase lightning/surge protector block that snaps onto DIN rail for panel installation.
A surge protector like the Fujibin FB100 is designed to clamp and divert sudden voltage spikes on the AC supply line, helping to prevent damage to connected electrical equipment. The LED indicator lets you know whether the protective element is still functioning — if the LED stops flashing, the unit has likely reached the end of its lifespan and should be replaced.
This type typically provides basic surge suppression and is most effective for moderate transients; it should be installed with a proper earth/ground reference to work correctly.
Surge protectors are not substitutes for protective devices like MCBs or RCBOs — they are an additional layer of protection.
For severe lightning risk or industrial systems, a higher-rated SPD (Type 1/Type 2 with certified joule/RMS ratings) might be more appropriate.
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