0665 OHMITE Rheostat Watts Variac

Review OHMITE Rheostat 100 Watts 1k Ohm Variac Model Series 0.32 Max Amps #0457

The Ohmite 0665 Rheostat is a versatile and powerful adjustable resistor designed for various applications, particularly in laboratory settings and electrical equipment. This 1kW variac, or variable autotransformer, is ideal for controlling and regulating the power delivered to a load, making it an essential tool for engineers, technicians, and hobbyists alike.

This Ohmite rheostat boasts a 1 kW maximum power rating, indicating its ability to handle substantial power loads. The resistance range of this unit is from 0.32 to 0.457 , providing a significant level of adjustability to meet various requirements. The 0665 model is a rotary type rheostat, which means the resistance is adjusted by rotating a dial or knob, offering a smooth and precise resistance control.

The Ohmite 0665 Rheostat is constructed using high-quality materials and is designed for long-lasting performance. It features a robust, all-metal housing that ensures durability and protection against external factors. The unit's terminals are made of brass, providing excellent electrical conductivity and resistance to corrosion. Additionally, the unit comes with a protective bakelite knob, ensuring a comfortable and safe grip during operation.

The Ohmite 0665 Rheostat is designed to operate at a maximum voltage of 500 volts and a maximum current of 20 amps. It features an internal thermal protection system that automatically disconnects the power source if the temperature exceeds safe limits, providing an added layer of safety. The unit's resistance value is indicated on a clear, easy-to-read scale on the housing, allowing for quick and accurate adjustments.

In summary, the Ohmite 0665 Rheostat is a high-performance, adjustable resistor offering a wide resistance range, robust construction, and precise control. Its 1 kW power rating, smooth rotary operation, and thermal protection make it an excellent choice for various applications in laboratory settings, electrical equipment, and more.

The Ohmite 0665 Rheostat, model number 1K VARIAC 0.32 0457, is a variable autotransformer designed for adjusting voltage and current in electrical circuits. Here are some pros and cons that may help in deciding whether to purchase this rheostat.

1. Adjustable Voltage: This rheostat allows you to vary the voltage output from a minimum to a maximum value, making it suitable for applications requiring voltage regulation.

2. Smooth Voltage Change: The variable autotransformer design ensures a smooth and continuous voltage change, reducing the risk of voltage surges or drops that could harm sensitive equipment.

3. Current Limiting: The rheostat is rated for a maximum current of 32 Amps, allowing it to protect itself and the connected circuit from overcurrent conditions.

4. Wide Operating Temperature Range: The rheostat can operate in temperatures ranging from -20 C to 70 C, making it suitable for use in various environments.

5. Compact Size: The 0665 model has a relatively small footprint, making it a good choice for applications with limited space.

1. Limited Power Rating: With a maximum power rating of 1 kW, this rheostat may not be suitable for high-power applications.

2. Higher Cost: Compared to other types of voltage regulators, variacs like the 0665 model can be more expensive.

3. Potential for Harmful Shocks: As with any electrical component, there is a risk of electrical shock when handling or working on the rheostat, so proper safety precautions must be taken.

In conclusion, the Ohmite 0665 Rheostat, 1K VARIAC 0.32 0457, offers smooth voltage regulation, current limiting, and a wide operating temperature range, making it a suitable choice for applications requiring precise voltage control. However, its limited power rating and higher cost compared to other voltage regulators should be considered. If your application requires higher power or a lower cost solution, you may want to explore alternative options. Ultimately, the decision to purchase this rheostat depends on the specific requirements of your application.

Details:

Ohmite rheostat 100 watts 1k ohm variac model k, series a 0.32 max amps, #0457. Condition is new. Shipped with USPS ground advantage.

specifications passivecompos:

• brand: Ohmite
• mpn: 0665
• mounting style: Panel Mount
• packaging: Box
• material: Ceramic
• duty cycle: 100
• resistance rating: 1k
• maximum amps: .316

general passivecompos:

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

shipping passivecompos:

• class: standard
• transit: 4-10 days
• service: usps ground advantage
• carrier: usps
• type: fixed

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• sold #: 17
• started: march 29, 2025
• prices: $20.00–$78.95
• item condition:
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