Servo Stabilizer Price Guide: What Affects the Cost

Why there's no single price

A servo stabilizer is specified to your site, so the price depends on what you need rather than a fixed list. A small single-phase home unit and a large oil-cooled industrial system are very different machines. Below are the factors that move the cost, so you know what you're paying for.

Capacity (kVA)

The single biggest factor. Higher capacity means larger transformers, heavier build and more material, so cost rises with kVA. Sizing correctly — enough headroom without over-buying — is the best way to control price.

Phase and correction type

Single-phase units are simpler and cost less. Three-phase units cost more, and independently-corrected (unbalanced) three-phase models cost more than balanced ones because each phase has its own correction.

Cooling type

Air-cooled units are generally more economical for moderate loads. Oil-cooled units cost more but are necessary for heavy continuous duty, where they pay back through reliability and longer life.

Correction range and build

A wider input voltage range (for supplies that swing a long way) and heavier-duty construction add cost. Brand, warranty and service terms also play a part.

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