Yük ayırıcı darbe gerilim koruma cihazının yanında.

Not necessarily. As written, it is more like a location phrase than a full sentence.

In technical Turkish, labels, diagrams, and instructions often leave out the verb when the meaning is obvious. So this can function like:

• Next to the load disconnector surge-voltage protection device
• Located beside the load disconnector surge protection device

If you wanted a full sentence, Turkish might say something like:

• Yük ayırıcı darbe gerilim koruma cihazının yanında bulunur.
• Yük ayırıcı darbe gerilim koruma cihazının yanındadır.

Both add an explicit verb.

A good strategy in Turkish is to work from right to left, especially in technical noun chains.

Here is a rough breakdown:

• yanında = next to / at the side of
• cihazının yanında = next to the device
• koruma cihazının yanında = next to the protection device
• gerilim koruma cihazının yanında = next to the voltage protection device
• darbe gerilim koruma cihazının yanında = next to the surge/impulse voltage protection device
• yük ayırıcı darbe gerilim koruma cihazının yanında = next to the load disconnector’s surge-voltage protection device, or next to the load-disconnector surge protection device

In technical language, English often prefers hyphens or prepositions, but Turkish often stacks nouns together.

Because two different things are happening at once.

Start with:

• cihaz = device

Then in a noun compound:

• koruma cihazı = protection device

Here, the -ı in cihazı is not the accusative. It is the common compound/possessive ending used in Turkish noun compounds.

Then, because yanında usually follows a noun in the genitive:

• X-in yanında = next to X

So cihazı becomes:

• cihazının = of its/the device

You can think of it like this:

• cihaz
  • -ı
    • -nın → cihazının

That extra n is a buffer consonant that helps the endings connect smoothly.

Yanında means next to, beside, or at the side of.

It comes from:

• yan = side
• yanı = its side / the side
• yanında = at its side

So:

• cihazının yanında literally means at the side of its/the device
• more naturally: next to the device

This is a very common Turkish pattern:

• evin yanında = next to the house
• okulun yanında = next to the school
• masanın yanında = next to the table

Because the normal structure with yanında is:

• X-in yanında = next to X

So the noun before yanında usually takes the genitive ending:

• evin yanında
• arabanın yanında
• cihazının yanında

Without that genitive marking, it would sound incomplete or ungrammatical in standard Turkish.

No. This is a very common point of confusion for learners.

In koruma cihazı, the -ı is part of a noun compound, not the direct-object marker.

Compare:

• cihazı gördüm = I saw the device
  Here -ı is accusative.

But:

• koruma cihazı = protection device
  Here -ı is the compound/possessive ending used in this kind of noun phrase.

So in your sentence, cihazının is built from the compound form cihazı, and then the genitive is added because of yanında.

Because Turkish usually expresses those relationships with suffixes and noun compounds, not with separate words.

English says things like:

• the protection device of the load disconnector
• the surge voltage protection device

Turkish often handles that through word order and endings instead:

• yük ayırıcı ... cihazı
• cihazının yanında

Also, Turkish does not have a word exactly like English the in most situations. Definiteness is often understood from context.

It is a technical term.

• yük = load
• ayırıcı = separator / disconnector

In electrical language, yük ayırıcı refers to something like a:

• load disconnector
• load-break switch

The exact English term depends on the technical context, but it is a fixed equipment name, not just any random combination of words.

Because in Turkish noun chains, earlier nouns are often left in a bare form, while the final noun carries the main compound marking and any case ending.

So:

• koruma cihazı = protection device
• gerilim koruma cihazı = voltage protection device
• darbe gerilim koruma cihazı = surge/impulse voltage protection device

This is very normal in technical Turkish. English learners often expect more visible linking words, but Turkish frequently just stacks the nouns.

Usually not very well. A very literal translation can sound awkward.

Turkish technical noun chains often need to be repacked in English. Depending on context, natural English might use:

• next to the surge protection device of the load disconnector
• beside the load disconnector surge-voltage protection device
• next to the load-break switch surge protector

So the exact best translation depends on what the equipment is and how the engineer or manual labels it in English.

Not always, but here it almost certainly does.

Yanında can mean:

• next to / beside someone or something
• sometimes with someone, in the sense of being in their presence

Examples:

• Onun yanında oturdum. = I sat next to him/her.
• Para yanında mı? = Do you have the money with you?

In your sentence, since it is about equipment, physical location is the natural reading: next to / beside.