L0144 OHMITE Rheostat Potentiometer

Review OHMITE Vintage No. 0144 Model 25w Ohm Rheostat Potentiometer Used 300v

The Ohmite L0144 0144 25W Rheostat Potentiometer is a versatile and powerful electrical component designed for voltage and current regulation in various applications. This potentiometer, with a 300V maximum working voltage, is a must-have for those seeking precise control over electrical circuits.

Measuring 1.3 inches in length, 1.2 inches in width, and 0.7 inches in height, this potentiometer boasts a compact design that makes it an excellent choice for space-constrained applications. Its sturdy construction, featuring a robust metal housing, ensures durability and resistance to environmental stressors.

This 25W Rheostat Potentiometer is designed to handle a maximum current of 1.25A, making it suitable for regulating power in demanding applications. Its resistance range is 10 ohms to 100 kohms, providing a wide range of adjustability for various voltage and current control requirements.

The L0144 0144 potentiometer features a linear taper, ensuring that the resistance changes linearly as the shaft is rotated. This design allows for fine adjustments and consistent performance, making it an ideal component for applications that demand precise voltage or current regulation.

The potentiometer's wiper is constructed from a robust carbon composition material, providing excellent conductivity and durability. Its knob is designed for easy operation, enabling users to make adjustments with minimal effort.

This Ohmite potentiometer complies with various industry standards, including RoHS and UL, ensuring that it meets the highest safety and environmental standards. Its high power rating, combined with its wide adjustability range and robust construction, make the L0144 0144 25W Rheostat Potentiometer an indispensable tool for electrical engineers, technicians, and hobbyists alike.

The Ohmite L0144 0144 25W Rheostat Potentiometer 300V is a variable resistance device used to control electrical current or voltage in a circuit. Here are some pros and cons of buying this specific potentiometer:

1. High Wattage: This potentiometer has a maximum power rating of 25W, which makes it suitable for applications that require high power control.

2. High Voltage: It can handle a maximum voltage of 300V, making it ideal for use in industrial or high-voltage applications.

3. Durable Construction: The Ohmite L0144 0144 potentiometer is built with a robust design, featuring a heavy-duty rotary shaft, a rugged housing, and a long travel shaft that provides precise adjustment.

4. Wide Resistance Range: With a resistance range of 50 ohms to 25,000 ohms, this potentiometer can be used in various applications that require different resistance values.

1. Size: This potentiometer has a larger size than some other models in the market, which might limit its use in applications with limited space.

2. Cost: Compared to other potentiometers with similar specifications, this model may be more expensive.

3. Manual Adjustment: As it is a rheostat potentiometer, it requires manual adjustment, which might not be ideal for applications that require automatic or remote control.

The Ohmite L0144 0144 25W Rheostat Potentiometer 300V is a high-performance, heavy-duty potentiometer suitable for industrial and high-voltage applications. Its high wattage, wide resistance range, and rugged construction make it a reliable choice for controlling electrical current or voltage in various applications. However, its larger size and higher cost compared to other models might be a drawback for some users.

If you are looking for a high-performance potentiometer for industrial or high-voltage applications, the Ohmite L0144 0144 25W Rheostat Potentiometer 300V is an excellent choice. However, if you are working in a space-constrained environment or require automatic or remote control, you might want to consider other models with smaller sizes and different control mechanisms.

Details:

0144 model high-power rheostat. Technical specifications: current rating: 1.77 amps. Dimensions: approximately 1.56 diameter; 1.075 depth behind panel. Terminals: solder lugs.

Condition note: this unit is used and shows typical signs of wear for its age. Max voltage : 300v. This robust, wire wound ceramic variable resistor is ideal for motor speed control, light dimming, or laboratory testing. Product overview: up for sale is a pre-owned Ohmite no.

Please review the photos carefully to see condition of ceramic body and wiper arm. Ships same day or next.

specifications passivecompos:

• brand: Ohmite
• mpn: L0144
• power rating: 25 W
• mounting style: Panel Mount
• shape: Round
• termination style: Soldering
• item diameter: 1.56
• material: Ceramic
• series: Series A
• type: Power Potentiometer
• resistance rating: 8 Ohms
• country of origin: United States

seller passivecompos:

• rating: 100.0%
• city: san francisco, california
• # reviews: 1164

offer passivecompos:

• sold #: 9
• in stock #: 2
• started: january 2, 2026
• prices: $35.00–$87.00
• item condition:
  • New – Open box
  • Used
• options: ship-to-home
• availability: in stock

payments passivecompos:

• wallet: google-pay
• other
• credit card: visa

general passivecompos:

• category: Business & Industrial > Passive Components > Variable Resistors > Potentiometers

returns passivecompos:

• policy: no returns

shipping passivecompos:

• transit: 5-8 days
• class: standard
• type: calculated
• carrier: usps
• service: usps ground advantage