| Single Phase / Three Phase | 1 Phase |
| Product Type | Type B |
| Amper (A) | 20A |
| Kilo Amps (Ka) | 10 Ka |
| Number of Poles | 1 |
| Rated Voltage (V) | 230/400VAC |
Siemens Automatic Fuse 5SX4120-6 Single Phase B Type 20Amper 10Ka , also known as miniature circuit breakers, are protection and switching circuit elements designed to protect the electrical installation and system against overcurrent and short circuits. Type B automatic fuse: It is generally used in home lighting, socket and control circuits. It is known as fast type fuse.
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