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Afriso South Africa (Pty) Ltd

Contact protection relay / isolating switching amplifier for electrical contacts

Contact protection relay, isolating switching amplifier

Application and principle of operation of the contact protection relays MSR/MSR-I
The application of a pulsed voltage to the contacts (e.g. of a contact pressure gauge) ensures load free switching of the contacts (99 % voltage-free). This protects the contacts and prolongs their service life. When used for measuring instruments with liquid filling it prevents turbidity of the liquid and protects the contact surfaces. 

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