Change-over Swtich

Specifications

Installation and use instructions and notes for attention

●  The DIN-rail installation micro change-over switch should be installed

vertically, with the upper terminal connected with the power source and the

dynamic contact de-energized when disconnected soars to ensure the human safety

during manual operation.

●  Normally, the DIN-rail installation micro change -over switch should not be operated with load during switching -on and off.

●  The upper end is for incoming line and the lower end for outgoing line

(load terminal), reverse connection is not allowed. If it is necessary to cut

off the power of position I and II, when the handle is pushed to the position O,

the position I and II are all in powered off state. If position II is to be

activated, push the handle upward, then the contact of position II is

connected,and that of position I is disconnected; if position I is to be

activated, pull the handle downward, then the contact of position I is

connected, while that of position II is disconnected.

●  The 3- position changeover of the product is realized through the

operation of mechanical parts relying on the compression and release of the main spring. The handle needs high operating force and shows big inertia force

(63A-125A product), usually, it is difficult to realize e accurate changeover

with a single hand, and the improper operation will cause abnormal changeover

of the circuit. During use, it is recommended to operate 63A-125A product with

both hands or with accessories provided by the factory (the extend operating

handle).

●  The DIN-rail installation micro change-over switch should not be applied

with over-current during connection and disconnection (use under overload),nor

cut on and off with normal working current. Never push or pull the switch with

strong force in order to avoid any accident or reduction of the service

life.

●  If several change- over switches are put into the closed distribution

box at same time, heat may be accumulated in the box, as a result, the

temperature will rise and the switch will get extremely hot. After long time of

use, the insulating parts of the products will be damaged and the service life

of the product will be reduced. When the temperature reached over + 40C, the

product should berated. If the derating factor is 0.8. then the maximum

working current shall be the rated current multiplied by the factor 08 (for

example: the maximum working current 125Ax 0.8= 100A).

●  The DIN-rail installation micro change – over switch has no arc

extinguishing chamber. It is not allowed to use it for breaking fault current.

If necessary, the customer can select proper fuse combination to make available big load and short circuit breaking capacity (the concrete breaking

capacity is decided by the breaking ability of the fuse selected).The section

area of the connecting wire of change-over switch should match the rated current

so as to ensure the normal use of the product. The torque of product wire:1.2 N. mat 16-40A.

●  During the use, the connecting terminals of the switch and wires should

be checked if they are well fastened with screws. If the terminals change

color.

Product Features

The DIN-rail installation micro change-over switch realizes the changeover of O, l and Il positions directly with manual handle. The turning slot of the internal handle and the sliding position of the spindle are all coated with high grade lubricant to reduce mechanical wear. The dynamic and static contact adopt the reasonable contact method with good conductivity and stability. The modular and standard guide installation structure is particularly suitable for the matching circuit of terminal combination apparatus.

Specification and Feature: