
4CR-1-650-08Z3R Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $45.00 | Condition is New – Open box, Klixon 4CR-1-650 Starter Relay Motor Protector New Without Box, FREE SHIPPING | 99.8% |
![]() | $80.19 | Condition is New – Open box, Klixon 4CR-1-650 Motor Starting Starter Relay Cornelius 638041922 4CR1 T.I., shipping cost = $7.99 | 100.0% |
![]() | $79.46 | Condition is New – Open box, New Klixon 4CR-1-650 Relay Starter Motor Protector NO SPST 25Amp 5.10/4.20A, shipping cost = $13.05 | 100.0% |
![]() | $249.95 | Condition is New – Open box, Klixon 4CR-1-650 Motor Starter Relay Cornelius NEW NO BOX, shipping cost = $10.00 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $49.99 | Condition is New, Klixon 4CR-1-650 Relay Starter Motor Protector NO SPST 25Amp 5.10/4.20A NEW, shipping cost = $7.00 | 100.0% |
![]() | $89.99 | Top Pick! Condition is New, Klixon 4CR-1-650 Relay Starter Motor Protector NO SPST 25Amp 5.10/4.20A NEW, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $38.95 | Condition is Used, Klixon 4CR-1-650 08Z3R Cornelius 638041922 Starter Relay, Used, shipping cost = $12.10 | 100.0% |
![]() | $45.99 | Condition is Used, Klixon 4CR-1-650 Relay Starter Motor Protector NO SPST 25Amp 5.10/4.20A USED, shipping cost = $10.60 | 100.0% |

The Klixon 4CR-1-650 08Z3R Cornelius Starter Relay is a crucial component in various heating systems, specifically designed for commercial and industrial applications. This reliable and robust relay is manufactured by Klixon, a trusted name in the industry known for producing high-quality heating equipment.
This particular model, the 4CR-1-650 08Z3R, is a 2-pole, 2-throw, normally open, contactor type starter relay. It is designed to handle a current of up to 650 amperes at a voltage of 240 volts, making it suitable for use in heavy-duty heating systems. The contact rating of this relay is 1000 amperes at 30 volts, ensuring reliable and efficient contact closure.
The housing of the relay is made of a rugged and durable material, which can withstand harsh operating conditions. It is designed to be mounted in a drip-proof location, making it ideal for use in humid or wet environments. The terminal screws are gold-plated, ensuring good conductivity and reducing the risk of corrosion.
The Klixon 4CR-1-650 08Z3R Cornelius Starter Relay features a coil with a resistance of 2.5 ohms, which ensures quick and efficient response. The relay also has an overload protection feature, which helps to prevent damage to the relay and the heating system in case of excessive current flow.
This starter relay is designed to be easy to install and maintain. It comes with clear and concise markings on the terminal screws, making it easy to connect the wiring correctly. The relay also has a transparent cover, which allows users to check the status of the coil and the contacts without having to remove the cover.
In summary, the Klixon 4CR-1-650 08Z3R Cornelius Starter Relay is a heavy-duty, reliable, and efficient component for use in commercial and industrial heating systems. Its rugged construction, high current handling capability, and easy installation make it an ideal choice for demanding applications.
The Klixon 4CR-1-650 08Z3R Cornelius starter relay is a type of electrical component used to control the starting circuit of a compressor or a motor. Here are some potential pros and cons of buying this relay:
Pros:1. Dependable Performance: This relay is known for its reliable and robust performance in industrial applications. It is designed to handle heavy loads and can withstand harsh environments.
2. Easy Installation: The relay comes with clear instructions for installation, making it a relatively easy component to install in comparison to other complex electrical systems.
3. Durable Construction: The relay's housing is made of a rugged material that can resist impact and vibration, ensuring that it lasts for a long time.
4. High Voltage Capability: The Klixon 4CR-1-650 08Z3R Cornelius starter relay can handle high voltage inputs, making it suitable for use in industrial compressor systems.
Cons:1. Expensive: Compared to other relays in the market, this one may be considered expensive. However, its durability and reliable performance may justify the investment.
2. Limited Availability: This particular model of the relay may not be readily available in all locations, requiring customers to order it online or from specialized distributors.
3. Complex Wiring: While the installation process is relatively straightforward, the wiring of the relay can be complex, requiring a good understanding of electrical systems and safety precautions.
Conclusion:The Klixon 4CR-1-650 08Z3R Cornelius starter relay is a high-performance, reliable, and durable electrical component suitable for industrial applications. Despite its price and limited availability, the benefits of its robust construction and dependable performance make it a worthwhile investment for those who require a reliable starting system for their compressors or motors.
Recommendation:For those in need of a starter relay for their industrial compressor or motor system, the Klixon 4CR-1-650 08Z3R Cornelius starter relay is a recommended option due to its reliable performance, rugged construction, and easy installation process. However, customers should ensure that they have a good understanding of the electrical system and safety precautions before installing the relay. Additionally, they should consider the cost and availability of the relay before making a purchase.
Details:
You're buying on a relay. Starter relay. Model number: 4CR-1-650 08Z3R. Please see pictures for further details.
Auxiliary current lighting manual overload potential. Condition: used. 6vdc 10vdc 12vdc 24vdc 48vdc 120vdc. Have a nice day.
specifications centrafurn:
- brand: Klixon
- mpn: 4cr-1-650
- part type: Starter
offer centrafurn:
- sold #: 25
- availability: in stock
- in stock #: 5
- prices: $38.95–$249.95
- item condition:
- New – Open box
- New
- Used
- started: june 25, 2025
- options: ship-to-home
seller centrafurn:
- # reviews: 9669
- rating: 98.0%
- city: bakersfield, california
general centrafurn:
- category: Home & Garden > Heating, Air > Cooling Systems > Central Furnaces
shipping centrafurn:
- class: economy
- transit: 3-7 days
- type: fixed
- service: economy
payments centrafurn:
- credit card: diners-club
- wallet: paypal
- other
returns centrafurn:
- paid by: buyer
- method: money back
- policy: returns accepted
- time: 30 days








