| Single Phase / Three Phase | 1 Phase |
| Product Type | Type B |
| Amper (A) | 20A |
| Kilo Amps (Ka) | 4.5 Ka |
| Number of Poles | 1 |
Legrand Automatic Fuse XS3 Type B 1x20Amper 4.5Ka 403205 is generally used to protect lighting and socket circuits where sudden overcurrents do not occur during switching, such as home lighting, sockets and controls. During a short circuit, types B open without delay at 3-5 times the rated current. Automatic fuses detect overcurrent or short circuit in the circuit and cut the current.
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