Sensitive holding magnet release for fault-current switch - has saturation grid in yokes near bridging armatures so that yoke cross=section in this region is small
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Contact design for switching system with parallel arms - has different active areas embedded with extension for arc vapour
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Speed regulator for DC series wound motors - uses pulse averaging technique to provide control independent of voltage and load variations
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Hinged armature electromagnet with enhanced pull:in torque - has L: shaped armature partially enclosing U:shaped yoke when operated
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Switching chamber for cam switch
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ENCAPSULATED SWITCHING LINE FOR ELECTRIC SWITCHING DEVICES
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Power fuse with tubular insulated body and end plates - has wire end welded to inside of plate fitted last with flux already deposited
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Coupling for multipole cct. breaker - has common shaft preventing change of state till all contact states are similar
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AC-excited SOLID MAGNET SYSTEM
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Miniature circuit breaker of simple construction - has support lever connected to shackle and toggle joint
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Switching mechanism for protective cct. breaker - has pivoted spring-loaded contact arm linked over latch to pivoted operating arm
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Thermal overcurrent relay laminated slotted bimetal trip - is produced by aligning in former and tungsten-inert gas spot-welding together
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CIRCUIT ARRANGEMENT FOR THE SPEED CONTROL OF A DC SHUNT MOTOR
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CONTACT DEVICE FOR INSTALLATION SELF-SWITCH
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ARRANGEMENT FOR THE SPEED CONTROL OF A COLLECTOR MOTOR
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Electromagnetic contactor with split housing - has housing halves firmly coupled to contactor coil former
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JUMPER FOR ELECTRIC SNAP SWITCHES
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AUXILIARY SWITCH WITH SINGLE INTERRUPTION
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PROCEDURE FOR ASSEMBLING A LOW VOLTAGE HIGH PERFORMANCE FUSE
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Arrangement for connecting magnet armature and contact bridge support in electromagnetically operated switchgear
