Electrical Supplies
Siemens Sentron 5SY4 MCB, 1P+N, 3A Curve C, 230V AC, 10 kA Breaking Capacity
Siemens Sentron 5SY4 MCB, 1P+N, 3A Curve C, 230V AC, 10 kA Breaking Capacity, Tripping Characteristics: Type C, Length: 35.2mm, Width: 76mm, Mounting Style: DIN Rail Mount, Depth: 90mm, Better World Claim: Extended product life, Better World...
https://www.bizrate.co.uk/electricalsupplies/siemens-sentron-5sy4-mcb-1p-n-oid24245495793.html