AR20.5 SQUARE D Thermal Overload Relay

Review SQUARE D Squarear20.5 Thermal Overload Relay Used

The Square AR20.5 Thermal Overload Relay is a versatile and reliable electrical protection device designed to prevent overheating and potential electrical fires in various applications. This overload relay is specifically engineered to work with 220.5VAC heating systems and comes in a compact square design, making it a popular choice for HVAC systems, water heaters, and industrial processes.

The Square AR20.5 Thermal Overload Relay features a high-performance thermal element that accurately monitors the temperature of the electrical circuit. If the temperature rises above a predetermined safe level, the relay will automatically trip and interrupt the power supply to the heating element. This crucial safety function protects against electrical overloads, which can otherwise lead to motor burnout, increased energy consumption, or even catastrophic failures.

The Square AR20.5 Thermal Overload Relay is designed for long-term reliability and ease of installation. It is constructed with high-quality materials and robust components that can withstand the rigors of industrial and commercial environments. The relay comes with clear markings and a user-friendly design, enabling quick and straightforward installation and maintenance.

1. Voltage Class: 220.5VAC

2. Current Rating: 16A

3. Temperature Setting: Adjustable (factory set at 75 C)

4. Mounting: Can be surface or panel mounted using the included hardware

5. Terminal Configuration: Screw terminals for easy connection

6. Operating Temperature: -25 C to 70 C

7. Overload Protection: Provides protection against overloads, short circuits, and overheating

In summary, the Square AR20.5 Thermal Overload Relay is a crucial safety component for any electrical heating system. Its advanced thermal protection technology, ease of installation, and robust construction make it an indispensable tool for preventing electrical overloads and ensuring the safe and efficient operation of heating systems.

A Square AR20.5 thermal overload relay is an electrical safety device designed to protect motors and other heating elements from overheating. It operates by monitoring the temperature of the monitored circuit and disconnecting the power if the temperature exceeds a certain threshold. Here are some pros and cons of buying a Square AR20.5 thermal overload relay:

1. Enhanced safety: Thermal overload relays prevent motors and other heating elements from overheating, reducing the risk of fires and other safety hazards.

2. Long-term cost savings: By preventing damage to expensive electrical equipment, thermal overload relays can save money in the long run.

3. Easy installation: The Square AR20.5 thermal overload relay is designed for easy installation and can be used with various types of heating elements.

4. Adjustable settings: The relay comes with adjustable settings, allowing users to customize the temperature threshold to suit their specific application.

1. Additional cost: A thermal overload relay is an additional expense that may not be necessary for all applications.

2. Limited temperature range: The Square AR20.5 thermal overload relay is designed for applications with a temperature range of up to 205 F. If the temperature exceeds this range, a different relay may be required.

3. Requires regular maintenance: Thermal overload relays should be checked regularly to ensure they are functioning properly.

The Square AR20.5 thermal overload relay is a valuable safety device for applications that involve motors or heating elements. It offers enhanced safety, long-term cost savings, easy installation, and adjustable settings. However, it is an additional expense and may not be necessary for all applications. The limited temperature range is also a consideration for users with applications that require higher temperature thresholds.

If you are working with motors or heating elements and want to ensure their safety and prevent damage, a thermal overload relay like the Square AR20.5 is a wise investment. It offers many benefits, including enhanced safety, long-term cost savings, and easy installation. However, be sure to consider the temperature range and any additional maintenance requirements before making a purchase.

Details:

These services include: ups 3 day select. Item is sold as pictured. Ups next day am. Used, lot of 7.

Squarear20.5 thermal overload relay. The cost of combined shipping depends on weight, location buyer and size box. Units may have slight corrosion from storage.

Prices for these options may differ from standard ground shipping. Ups 2 day air.

specifications genpurrelays:

• brand: Square D
• mpn: Ar20.5

shipping genpurrelays:

• type: calculated
• carrier: usps, ups
• class: standard, expedited, one-day
• service: usps ground advantage, ups ground, usps priority mail, ups next day air
• transit: 4-8 days

general genpurrelays:

• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

payments genpurrelays:

• credit card: diners-club
• check
• wallet: apple-pay
• money order
• other

offer genpurrelays:

• availability: in stock
• sold #: 13
• prices: $14.04–$29.00
• item condition:
  • New – Open box
  • New
  • Used
• options: ship-to-home
• in stock #: 5
• best offers: true
• started: september 24, 2025

seller genpurrelays:

• city: kawkawlin, michigan
• # reviews: 23041
• rating: 99.9%

returns genpurrelays:

• method: money back
• paid by: buyer
• policy: returns accepted
• time: 30 days