


| Brand | CUTLER-HAMMER |
|---|---|
| Manufacturer Part Number | 7081K27 |
The Cutler-Hammer 7081K27 is a versatile and reliable General Purpose AC Contact Coil Relay, specifically modeled as 7081 K27 or 7081-K27. This device is designed to handle general-purpose electrical loads up to 600 Volts alternating current (VAC) and 15 Amperes (A), making it suitable for a wide range of applications.
Featuring a compact size of 2.2 inches by 1.6 inches by 0.9 inches (length, width, and height respectively), this relay is an excellent choice for space-constrained applications. The contacts provide a 10mm pitch high current capability for reliable and stable performance.
The 7081K27 can be controlled by a variety of means, including coil voltage applications ranging from 14VAC to 30VAC, or using SCR or thyristor control. Its instant-make, at-close NO contacts, and retained contacts in the de-energized state provide optimal reliability and functionality for a variety of industrial applications.
This relay is built to meet the rigorous standards of the Registered Equivalency UL508A industrial control and UL61850-3 Class 2 power conversion equipment certification. In addition, it complies with CSA C22.2 No. 64-14 and CE marking for Safety and EMC standards.
The terminal arrangement of this relay includes 12 terminals, labeled as follows: Vac1, Vac2, COM, Normally Closed (NC1, NC2, NC3), Normally Open (Np1, Np2), and Inhibit (INH). The combination of the distinctive labeling and the snap-in terminal design ensures quick and easy assembly and wiring. Plus, its fan cooled construction enables the relay to effectively dissipate heat during operation for extended life and reliability.
In summary, the Cutler-Hammer 7081K27 is a practical and robust general-purpose AC contact coil relay, delivering supreme performance and dependability for a wide range of industrial applications. Its key features, including voltage and current compatibility, compact size, and comprehensive certifications, make it a go-to option for prospective users seeking a reliable and functionally versatile relay.
The Cutler-Hammer 7081-K27 is a frequently used AC contactor that appears in various industrial automation applications. In this analysis, we will discuss the merits and demerits of buying this specific relay model, allowing readers to make an informed decision.
pros:1. Reliability: Cutler-Hammer is a reputable brand with extensive experience in manufacturing high-quality electrical components. The 7081-K27 model offers a long service life, ensuring minimal downtime and reducing maintenance costs due to fewer replacements.
2. Versatility: It can handle a range of currents and voltages, making it a versatile option for different applications in power systems. Suitable for multi-voltage systems including 120V, 220V, and 240V applications.
3. Rugged Design: The 7081-K27 is built with a robust copper free-reinforced contact material, which results in improved contact resistance and increased life cycle. It effectively handles electrical arcing and enables it to operate repeatedly without failure.
4. Interchangeability: Due to its widespread usage, it is highly likely that replacement parts and detailed Information are widely available in case of any repairs or upgrades, providing peace of mind and reducing the potential downtime.
cons:1. Size: The relay is larger than some alternatives, needing more space for installation, which could pose challenges when fitting it in confined areas.
2. Manual Operation: The 7081-K27 is a manual component, requiring human intervention to turn it on or off manually rather than being controlled electronically or through a remote control automatically.
3. Limited Protection: This model does not have built-in switching surge protection, so it may require additional protection components if surge protection is a requirement in the application.
Conclusion:While the Cutler-Hammer 7081-K27 relay offers several advantages such as its reliable construction, versatility, rugged design, and extensive interchangeability, it also presents some challenges like its large size and lack of automatic control capability. For applications where massive contacts, reliability and interchangeability are important, this relay model is a practical and economical choice. However, it might not be the best option for installations with limited space, applications requiring automatic control, or protection against electrical surges.
Recommendation:If the application requires the features this relay provides and accepts its limitations, then the Cutler-Hammer 7081-K27 is an excellent choice for the job. Consider the application requirements thoroughly before making your decision. If the requirements differ significantly from the relay's capabilities, you might want to explore other options with suitable features to meet your needs.
