ORK DIN rail ONKA series

Screwless plug

• The color is grey
• Plastic plugs of the appropriate size and color.
• Made of fire retardant colored polyamide

product specification

• MRK AND OPK SERIES SCREWLESS END BRACKET ONKA

• Product manufacturer: onka
• Product Type: Screwless Plug
• Colour: grey
• Electrical connection type: screwless connection
• Touch Point: Side (Landscape)
• Materials used: polyamide and copper
• Degree of protection: IP: IP20
• Implementation: staged
• Working temperature: -40 — + 140 degrees Celsius
• Long life

Dimensions: –

We should take a brief about the types of grounding and what are they?

1- Direct grounding

• This type of earthing is connected between the tie point and the ground directly by a conductor without any resistances or obstructions. It addresses the defects of the indirect grounding system and is used in the LV system where the ground fault current is small, but it is sufficient to operate the protection relays when any ground fault occurs. It is separated momentarily without any delay, and this system of protection is not suitable for the main circuits in high voltages that require continuity of feeding.

2- Grounding with resistance

• The connection between the break-even point and the earth is through resistance and is used in systems with medium and high voltages in order to limit the voltage rise in the covers of electrical equipment when the fault currents of the earth connection pass through it and its value can be controlled to adjust the maximum height of the voltages of this equipment during the fault and it is also used in grounding a point Tie for generators with voltages higher than 1000 volts.
• This system is used when there is an urgent need to reduce the earth fault current

Grounding advantages:

• Protect equipment and circuits from the risk of excessive fault current.
•  Reducing the effect of Arcing Grounding strikes.
• Facilitate the use of ground fault protection devices.
• cost reduction.
• Limit the fault current to values ​​that do not affect the system

The grounding system is used and applied to:

• Metal sheaths surrounding and covering electrical conductors, such as cable sheaths and reinforcing layers
• Metal structures and casings of electrical machines in general if they are exposed to contact between these structures and the current-carrying conductor.
• Casings and structures of motors, controls, elevators and cranes.
• Devices and equipment in garages, theatres, theaters and studios
• Electrical signaling and display devices
• Motors and generators connected to water pipe networks and pumps.
• Distribution boards and key holders.
• Some non-electric devices and equipment, such as steel ropes used in electric winches and elevators.
• Sockets connected to household appliances that operate with motors, as well as lampshades and electrical hand tools.
• Plugs and barriers connected to industrial equipment unless they are out of reach of individuals.
• Metal belts in chemical factories and petroleum refineries and its derivatives.
• Metal towers carrying high voltage lines.
• High buildings and chimneys of generation units and factories.
• ONKA spring tip automatically adjusts to the wire cross-section, provides optimum strength and does not damage the wire.
• Eliminates the influence of the human factor on the quality of communication.
• The spring clip on the DIN rail greatly speeds up installation time
• ONKA spring station has increased vibration and shock resistance.
• It does not require subsequent technical maintenance.

Screwless stopper: