I. Product Usage 

F10 Series Auxiliary Switch is mainly used as various high-voltage circuit breakers, whose high voltage isolating switch actuator controls breaking-closing gate signal and interlock protection contacts in return loop. It is also used as alternation switch and combination switch and is widely used for secondary circuit of VS1（ZN63）, ZN12, 3AF, ZN65, FZN25, CT19, CT19, CTD and other vacuum circuit breaker, load switch, spring operating mechanism.

II. Product Structure and Performance Characteristics of F10 Auxiliary Switch 

The Auxiliary Switch is a kind of rotary type auxiliary switch, and its outlet adopts full insulation terminal wiring, whose contact gets in touch with others through planar slide. Its moving contact is composed of two contact pieces without fixed gap or contact pedestal, which makes equal contact pressure of each pair contact piece available. The product is assembled by modular switch unit, whose contact pitch number can be determined randomly in accordance with user’s requirements. The whole switch features its small volume, simple structure, flexible operation and safety and reliability.

III. Usage Environment and Installation Conditions of F10 Auxiliary Switch

With an altitude less than 2,000 meters; 

With an environment temperature of -10℃~+40℃; 

RH: When the maximum temperature reaches to +40℃, the relative air humidity should not be over 50%, but higher relative humidity is allowed at lower temperature. 

With an installation category (over-voltage category) of II (load level).

With a surrounding medium without explosion hazard, fire, dust, destructive insulation or a place where is sufficient to corrode metallic gases.

 IV. Specification Model and Parameters

 V. Overall Size and Installation Dimension of Auxiliary Switch

As shown in The Overall Size and Installation Dimension of Auxiliary Switch

Ordering information: 1. The required model should make a footnote related to contact log, for example, F10 - 16 means its contact log is 16 with 8 open and 8 closed.  2. The auxiliary switch is divided into horizontal switching and 45 ° switching (the figure above is 45 ° switching), the first one shows its shaft surface up and the last one shows its shaft sharp edge down. Therefore, the customer should make a clear footnote as ordering.