magnetic blowout

magnetic blowout

[mag′ned·ik ′blō‚au̇t]
(electromagnetism)
A permanent magnet or electromagnet used to produce a magnetic field that lengthens the arc between opening contacts of a switch or circuit breaker, thereby helping to extinguish the arc.
References in periodicals archive ?
M3417 With Engraved Aluminum Front Plate,1 Dead Man S Switch, 8 Contact Switches, 3 Rotary Switches With Magnetic Blowout Cap, To Be Operated By T-Grip.
ARC SWEEPER improves the breaking capability by enhancing the magnetic blowout effect, so DC current can be separated accurately and quickly regardless of current direction.