can this be used on a 120 volt power supply that feeds a 115 v. 5.5 amp dc motor. used on a lathe?

No. Another buyer noted this is rated at 2 watts. If that is accurate, your use would fry it in a millisecond, with smoke if not flame! 5.5 amps at 115 volts is over 600 watts.

What potentiometer is needed to go from 120v dc to 10v dc?

For that level of a drop, a divider network + 10V regulator is a much better idea. I'm sure there is a setting on this pot that will yield 10V output, but there will be low current load capability and no voltage regulation.

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Taiss 2pcs RV24YN20S 10K Potentiometer Single Turn Carbon Film Rotary Taper Potentiometer Used for Inverter speed regulation Motor speed control + 2pcs A03 knob + 2pcs dials (B103 10K ohm)

Product ID: 63057155

🔄Single-turn rotary control

⚙️10K ohm precision resistance

🎛️Includes knobs & dials for seamless adjustment

70.34 DT

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Description

🎯 Dial in precision, control your flow — never miss a beat!

COMPLETE CONTROL KIT - Comes with 2 A03 knobs and 2 dials for intuitive, ergonomic adjustments.
COMPACT DURABLE BUILD - Robust 24x14mm body with a sturdy 6mm shaft fits perfectly in professional setups.
TRUSTED INDUSTRIAL STANDARD - Ranked #5 in Potentiometers with 4.5-star reviews, ensuring quality and reliability.
PRECISION 10 K OHM RESISTANCE - Engineered for accurate inverter and motor speed regulation with ±10% tolerance.
SMOOTH SINGLE TURN ROTARY DESIGN - Effortlessly fine-tune your system with a reliable carbon film rotary taper potentiometer.

The Taiss RV24YN20S 10K single-turn carbon film rotary potentiometer is a compact, high-precision component designed for inverter and motor speed control. Featuring a 10K ohm resistance with ±10% tolerance, it includes two potentiometers, two A03 knobs, and two dials for seamless adjustment. Its durable build and ergonomic design make it a top choice for industrial automation professionals seeking reliable and smooth speed regulation.

Specifications

ASIN	B0795R7PXZ
Best Sellers Rank	#16,188 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Potentiometers
Customer Reviews	4.5 4.5 out of 5 stars (348)
Date First Available	July 28, 2017
Item Package Quantity	1
Item Weight	1.76 ounces
Item model number	JND-RV24B103-10K+A03-K
Manufacturer	Taiss
Material	Carbon film potentiometer
Package Dimensions	4.41 x 3.11 x 0.98 inches
Part Number	JND-RV24B103-10K+A03-K
Size	B103 10K ohm

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70.34 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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2 months ago

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