Mains surge suppression


Posted on Feb 5, 2014

The following circuit is a schematic of mains surge suppressor circuit manufactured by StrG¶mfors and sold undel model name `Ahstrom Transienttisuoja 23 386`. It is designed for protecting sensitive electronic devices agains overvoltage transients in normal mains voltage. The circuit is designed for use in Finland where the mains voltage is 230V A


Mains surge suppression
Click here to download the full size of the above Circuit.

C and the maximum fuse size for mains connector group is 16A. The surge protector is connected between main outlet and the equipment to be protected. The protector handles G³nly the overvoltage between live and neutral wires (no common mode surge protection). This surge protector is suitable to be used with both grounded and non-grounded wall outlets. Operation voltage 230 V AC Max. Operation current 16 A Max. group fuse size 16 A Cutting voltage (0, 2/50 microsecond pulse) 850 V @ 80 A Max. current pulse (8/20 microsecond pulse, 10 pulses) 2000 A The circuit is quite basic surge suppression circuit which consists of VRD and gas surge suppressor connected in series. The protection circuit is connected between live and mains leads.




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