Search
| Current Range (A) | Phase-failure Protection Type | Standard Type |
| 65-100 | UKK-220 100 | UKH-220/3 100 |
| 85-125 | UKK-220 125 | UKH-220/3 125 |
| 100-160 | UKK-220 160 | UKH-220/3 160 |
| 120-180 | UKK-220 180 | UKH-220/3 180 |
| 160-240 | UKK-220 240 | UKH-220/3 240 |
UKH-220 Thermal Overload Relay 65-240A Contact Rating 3P 1NO + 1NC
UKH Thermal Overload Relay is designed for circuits up to 660V, 50/60Hz, with a maximum rated operational current of 800A at 380V under the AC-3 duty category.
It is used for the remote switching of circuits and, when combined with a suitable AC contactor or electronic protector, forms a reliable motor starter.
This setup provides effective protection against potential overloads and is well-suited for the frequent starting and control of AC motors. This product is manufactured in compliance with the GB/T 14048.4 standard.
Get A Free Quote
WhatsApp
Share quantity, voltage and destination — we reply with MOQ, lead time and OEM options.
Key Features
- Direct Mounting with UK-9, 12, 18, and 22 series contactors for easy installation.
- Flexible Installation Options can be mounted on a standard DIN rail or via screws using the optional mounting support (AZ-22H).
- Compact Design with a slim width of only 44mm, saving valuable control panel space.
- 1NO + 1NC Tripping Contact provides reliable signalling for circuit status.
- Precise Tripping Characteristics with Class 10A tripping for the UKH-22 standard type and Class 20A for the UKK-22/L phase-failure protection type.
- Two Versions Available: the standard UKH model and the UKK model with built-in phase-failure protection.
- Wide Operating Temperature Range from -5°C to 40°C for reliable performance in various environments.
- Selectable Reset Mode allows configuration for either manual or automatic reset after tripping.
- Trip-Free Mechanism ensures the contacts remain open during an overload condition, even if the reset button is held, for maximum safety.
- Bimetal Element provides robust and reliable overload protection through a time-proven thermal operating principle.
Application
- Protects industrial motors (e.g., pumps, compressors, conveyors) from overload damage, ensuring continuous operation.
- Safeguards motors in machinery like stamping presses and injection molding machines, reducing downtime and maintenance costs.
- Ensures safe and reliable elevator operation by protecting drive motors from overload-related failures.
- Safeguards motors in generators and pumps at power plants, enhancing operational efficiency and reliability.
- Prevents overload-related failures in substations and distribution networks, ensuring grid stability and safety.
Specifications & Drawings
Need this model for a project?
Send the pole configuration, current rating and order quantity. A KRIPAL engineer will come back with pricing and lead time.
Related Products
UKH-150 Thermal Overload Relay 34-150A Contact Rating 3P 1NO + 1NC
UKH Thermal Overload Relay is manufactured in compliance with the GB/T 14048.4 standard.
UKH-630 Thermal Overload Relay 220-630A Contact Rating 3P 1NO + 1NC
UKH Thermal Overload Relay is manufactured in compliance with the GB/T 14048.4 standard.
UKH-100 Thermal Overload Relay 34-125A Contact Rating 3P 1NO + 1NC
UKH Thermal Overload Relay is manufactured in compliance with the GB/T 14048.4 standard.
UKH-22 Thermal Overload Relay 0.1-22A Contact Rating 3P 1NO + 1NC UL Listed
UKH Thermal Overload Relay is manufactured in compliance with the GB/T 14048.4 standard.
Industry Solutions
Aviation & Ground Support Equipment (GSE)
The standardization of electric vehicle charging facilities is crucial to ensuring the safety and compatibility of charging services.
Building Management & Intelligent Construction
Smarter Power for a Connected Future The modern built environment is no longer static. Buildings today think, respond, and adapt. From commercial towers and hospitals to smart campuses and residential complexes, construction is evolving toward systems that integrate energy efficiency, automation, and safety. Kripal Electric supports this transformation with advanced low-voltage electrical solutions that form… Continue reading UKH-220 Thermal Overload Relay 65-240A Contact Rating 3P 1NO + 1NC
Data Centers & Critical Facilities
Powering the Digital Backbone with Uninterrupted Power In today’s digital world, data centers have become the backbone of the global economy. These facilities store, manage, and process vast amounts of data that power everything from cloud computing and artificial intelligence to e-commerce and social media. As these centers evolve to meet growing demands, the need… Continue reading UKH-220 Thermal Overload Relay 65-240A Contact Rating 3P 1NO + 1NC
Electric Vehicle (EV) Charging Infrastructure
Enabling the Transition to Electric Mobility As the global shift towards electric vehicles (EVs) gains momentum, the need for a robust and widespread EV charging network becomes essential. Kripal Electric is at the forefront of providing comprehensive EV charging infrastructure solutions, designed to support the growing demand for electric mobility. Our products are tailored to… Continue reading UKH-220 Thermal Overload Relay 65-240A Contact Rating 3P 1NO + 1NC
Green Energy Storage Systems
Powering the Future of Clean Energy As renewable energy adoption accelerates worldwide, Green Energy Storage Systems (GESS) have become essential to achieving stable, sustainable, and efficient power networks. These systems store surplus energy from solar, wind, and distributed sources, ensuring power reliability during peak demand or grid interruptions. Kripal Electric, with over 30 years of… Continue reading UKH-220 Thermal Overload Relay 65-240A Contact Rating 3P 1NO + 1NC
Direct from Manufacturer
Request a quote
UKH-220 Thermal Overload Relay 65-240A Contact Rating 3P 1NO + 1NC
Share quantity, destination and any OEM requirement. A KRIPAL engineer will reply with factory-direct pricing and lead time.
