AT25-DU ABB Thermal Overload Relay Kaeser Screw Air

Review ABB Du Thermal Overload Relay Removed From Kaeser Screw Air Compressor

The ABB AT25-DU AT25 du thermal overload relay is an essential safety component for Kaeser SK19 screw air compressors or similar applications where overload protection is required. This thermal overload relay is specifically designed to protect the compressor motor from overloading and potential damage due to excessive current or temperature.

The AT25-DU is a compact and robust device, with a sleek, rectangular design that measures approximately 5.9 inches long, 3.1 inches wide, and 1.9 inches high. It is constructed of high-quality materials, ensuring durability and reliability even in harsh operating conditions. The relay housing is made of die-cast aluminum, which not only provides excellent heat dissipation but also ensures a high degree of protection against external impacts.

The thermal overload relay features a bimetallic element that responds to temperature changes in the compressor motor windings. When the motor temperature reaches a predetermined level, the bimetallic element causes the contacts to open, disconnecting the power supply to the motor. This action prevents further damage to the motor and ensures the safety of the compressor system as a whole.

The AT25-DU is designed to work seamlessly with Kaeser SK19 screw air compressors and similar applications. It is wired in series with the compressor motor and can be easily installed using the provided mounting plates or studs. The relay comes with a set of terminals for easy wiring and features a clear indication LED that illuminates when the contacts are open, alerting the user to any potential issues.

This thermal overload relay is also equipped with a reset function, allowing the user to manually reset the relay once the compressor has cooled down. The reset button is easily accessible and conveniently located on the top of the relay housing.

The ABB AT25-DU AT25 du thermal overload relay is an essential safety component for any compressor system, providing reliable protection against motor overloading and ensuring optimal system performance. Its compact design, robust construction, and easy installation make it an ideal choice for Kaeser SK19 screw air compressors and similar applications.

The ABb AT25-DU AT25 thermal overload relay is a protective device designed to prevent overheating in electrical circuits, including those found in Kaeser SK19 screw air compressors. Here are some pros and cons of buying this specific thermal overload relay for your Kaeser compressor:

1. Safety: A thermal overload relay is an essential safety component that can help prevent damage to the compressor and potential electrical fires.

2. Compatibility: This particular relay is specifically designed for use with Kaeser SK19 compressors, ensuring a proper fit and function.

3. Easy installation: The thermal overload relay is relatively easy to install, usually requiring only a few wires to be connected.

4. Cost-effective: Compared to the cost of replacing a damaged compressor, the cost of a thermal overload relay is relatively low.

1. Additional cost: While the thermal overload relay is a necessary safety component, it represents an additional cost for the compressor owner.

2. Potential for false tripping: Overload relays can sometimes trip unintentionally, leading to compressor downtime. This can be caused by various factors, such as ambient temperature or compressor load.

3. Limited lifespan: Thermal overload relays have a limited lifespan, typically ranging from 5,000 to 20,000 hours. Replacing them periodically is necessary to ensure continued protection.

The decision to buy a thermal overload relay for a Kaeser SK19 screw air compressor ultimately comes down to weighing the potential benefits against the costs. The safety features and peace of mind provided by the relay are significant, but the additional cost and potential for false tripping are important considerations.

Given the importance of safety and the potential risks associated with compressor overheating, it is recommended to install a thermal overload relay on a Kaeser SK19 compressor. Regularly checking the relay for signs of wear and replacing it as needed is essential to ensure continued protection. When purchasing a thermal overload relay, look for a reputable brand and ensure compatibility with the Kaeser compressor.

Details:

Note: only for showing, the air compressor is not included. Note: for used/ pre-owned item, it may be tarnished, has scratches, surface rust, and/ or shelf rash, is as to expected of condition/ used condition it been and sitting around awhile. Testing, checking, and local pick-up are highly encouraged. Please double check that you can use it and ask question.

Condition: used/ pre-owned, comes as shown. Please see all photos as part of items. Unless, its noted in the listing. I may fit other year and model machines.

For electrical and electronic item, warranty is honored with proof of a certified electrician who installed it. Warranty does not cover item being sold for parts or repair. Location:3'x3' pallet rack shelf 4 it was removed from a kaeser SK19 rotary screw air compressor. Cosmetics are not covered under surplus stock item/ items.

Abb AT25 du thermal overload relay, motor protection device, it was removed from a kaeser SK19 rotary screw air compressor. Software programs are not covered. Manuals, books are not covered.

specifications compressorshow:

• brand: Abb
• mpn: At25-du
• model: At25 Du
• part type: Screw Compressor

payments compressorshow:

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

returns compressorshow:

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

shipping compressorshow:

• type: fixed
• class: standard
• transit: 5-12 days
• carrier: usps
• service: usps ground advantage

offer compressorshow:

• options: ship-to-home
• started: november 20, 2025
• quantity: 2
• sold #: 12
• availability: in stock
• best offers: true

general compressorshow:

• category: Business & Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Blowers > Air Compressors

seller compressorshow:

• city: fremont, california
• rating: 99.4%
• # reviews: 2967