Home devices for manual control
Burst Switches Burst switches type and the switches mean:
PV — batch switch; PP — packet switch; FDA — small size open circuit breaker; GPVM — hermetic circuit breaker small size; the first digit indicates the number of poles; the number after the dash indicates the rated current, A; H — the presence of zero provisions; the number after the letter H — the number of lines (for example, PVM2-10 — a compact two-pole switch designed for a rated current of 10 A; PP2-10 / N2 — a switch for open package versions two-pole for 10 A with two zero positions for two lines).
Universal Switches Switches can be divided into two groups: with rotary movable contacts of the MK and PMO series and a cam UP5300, PKU.
Universal switches in normal design are produced in the UP5300 series; waterproof — UP5400 series; explosion-proof — UP5800 series. They are distinguished by the number of sections, as well as by the fixed positions and the angle of rotation of the handle, its shape and other characteristics.
Switches can have 2, 4, 6, 8, 10, 12, 14, 16 sections.In switches with a number of sections from 2 to 8, the handle is fixed in any position or the handle is used with self-return in the middle position.
Quantity are specified fixed positions and the angle of rotation of the handle corresponding letter in the middle of the designation of the nomenclature switch. The letters A, B and C indicate the version of the switch with self-return to the middle position without locking. In addition, the letter A indicates that the handle can be turned 45 ° to the right (through clockwise) and to the left (counterclockwise), B — only 45 ° to the right, B — 45 ° to the left. The letters D, D, E and F indicate that the implementation switch with fixation in positions up to 90 °. In addition, the letter G indicates that the handle can be turned to the right position, D — one position to the left, E — one position to the left and right, F — can be in the left or right position at an angle of 45 ° to the middle (in the middle position , the handle is not fixed).
Letters I, K, L, M, N, S, F, x show that the switch with fixation in positions after 45 °. The letter I indicates that the handle can be turned right one position, K — left one position position, L — right or left two positions, M — right or left three positions, H — right eight positions, C — right or left one position , F — one position to the right and two to the left provisions, x — to the right of three positions and left two positions.
Lever can be oval and rotating. Usually switches, in which up to 6 sections including circular rotation (eight positions), have an oval handle.
The V designation of each switch receives an abbreviated name, a conditional number of this structure, a number indicating the number of sections, a latch type and a switch catalog number.For example, the designation UP5314 -N20 is deciphered as follows: U — — universal, P -switch, 5 — fixed controller, 3 — railless construction, 14 — the number of sections, H — type of retainer, 20 — number of catalog diagrams.
A major part of the UP5300 switch is hairpin clamped working sections. A roller passes through the sections, at one end of which there is a plastic handle. To fasten the switch to the panel in its front wall there are three protrusions with holes for mounting screws. The switching of electrical circuits is carried out by the available Contacts.
Small switches PMO series of general purpose, designed for installation on panel panels, can be used for remote control switching devices, in signal circuits, measurements and AC automation with a voltage of up to 220 V and are designed for a nominal current of 6 A.
Each switch of the PMO series has its own circuit diagram and wiring diagram Contacts.
Small size MK series switches are designed for mounting on control panels. They are used for remote control of switching devices (relays, electromagnetic starters and contactors) and in signaling, measuring, automatic circuits when AC and DC voltage up to 220 V. Contact switches are designed for a current of 3 A.
MK switches consist of 2, 4 and 6 pin packages. Packet camera universal switches PKU are used in the control circuits of electric motors in manual, semi-automatic and automatic modes. They are designed for 220 VDC and 380 V AC.
Switches The PKU series are distinguished by the method of mounting and fastening, the number of packages, fixed positions and the angle of rotation of the handle.Letters and numbers that are included in the designation of the switch, for example, PKU -3-12L2020, in the middle: P — switch, K — cam, U — universal, 3 — standard size determined by current 10 A, 1 — execution by type of the protection (shell without protection), 2 — execution according to the method of installation and fastening (installation from the back of the shield with attachment to the front bracket with a front ring), L — fixing the position after 45 °, 2020 — number of the scheme and diagram according to the catalog.
Controllers. These are multi-circuit electric devices with manual or foot drive for direct commutation of power circuits of DC motors up to 440 V and alternating current up to 500 V. By design, they are divided into cam, drum, flat and magnetic.
To control alternating current motors, current controllers of the KKT-61, KKT-61A, KKT-62, KKT-62A, KKT-68A, KKT-101, KKT-102 series are used, with symmetrical for both directions movement of the mechanism, chain of closing the contacts up to the nominal voltage 380 V, series KKP-101, KKP-102 for direct current motor control for voltages up to 440 V. They have up to 12 power contacts and up to 6 positions of the handle in each direction from zero provisions. Each working and neutral (zero) position has a fixation.
Magnetic consists of a controller and power electromagnetic devices — contactors. The command controller uses contacts to turn the voltage on or off although contactors, which switch circuits with their power contacts electric motors. This allows you to increase the degree of automation of systems. when controlling electric drives of movable mechanisms.
For motion mechanism motors are controlled by P, T, K series magnetic Controllers.Power and control circuits of the P-series controllers are powered by the DC network, T-series controllers by the mains. K series controllers use DC control devices which are more reliable in operation and allow higher switching frequency than contactors and AC relays.
For Asymmetric magnetic controllers of the PS, TS, KS series, which make it possible to obtain from engines low landing speeds when lowering loads. The letter A in the controller type designation means that the motor control is automated in time or EMF functions, eg PSA, TCA.
Magnetic controllers of the DP, DT, DK series are used to control motion mechanism devices. Magnetic controllers are used for medium and high power drives up to 150 kW with high switching frequency.