The PM12 electromagnetic starter is mainly designed for switching electric drives and current collectors, as well as remote switching of electric drives. One of the main advantages of starters of this series is the execution on the same mechanism of different capacities. It is mainly supplied complete with a current relay RTL TU3 425-041-05758109-2008 to protect the electric drive from overloads, including those caused by a break in one of the phases. Starters of this series are Russian-made, they are produced by the Kursk Electrical Apparatus Plant. Wear class B.
Prefixes for starters
To increase the number of auxiliary contacts, the plant produces PKL, PKB prefixes for magnetic starters PM12. To ensure a delay in switching on or off, there is an attachment PVL, which provides a delay in closing and opening the contacts of the auxiliary circuit for up to 180with. Prefixes are installed on magnetic starters very simply - by snapping.
In own case
There are PM12 starters equipped with their own protection with IP 5.4 degree. The number 5 means that the device is completely protected from contact. Some dust may get inside the device, but this will not interfere with its operation. The number 4 indicates that spray flying in any direction should not affect its operation. They come with start and stop buttons right on the case.
Reverse execution
Also, magnetic starters of this manufacturer can be reversible. That is, in fact, paired. This rather interesting engineering solution allows you to significantly save space. Plus, mechanical blocking of starters is additionally provided, which increases safety in operation.
Terms of Use
Magnetic starters PM12 can be operated in an environment with pollution degree 3. At the same time, their operating temperature ranges from -40 to +40. The manufacturer indicates that the operating temperature can be +55, but the rated currents must be reduced by 10%. For proper operation, the height above sea level should be no more than 2000 m. The manufacturer also indicates that the height can reach 4300 m above sea level, and at a voltage of 380 V, it is necessary to select the starter in such a way that the maximum currentconsumption was 10% less than nominal.
Installation conditions
Starter PM12 is mounted on a vertical plane with the outputs of the electromagnetic coil up and down, and when mounted on a DIN rail, it can deviate to the left and right by 15 degrees. Depending on the environment, the starters are available with degrees of protection 0.0, 2.0, and 5.4. The manufacturer claims that all PM12 electromagnetic starters produced by him are made of high quality materials and alloys. Testing of manufactured products, in particular electromagnetic relays, attachments, current relays, should ensure reliable operation. A current relay using the most modern bimetallic alloys will reliably protect equipment from abnormally high currents, as well as from a phase break. The starters are made in the same color scheme, have an attractive appearance and are made quite aesthetically.
