UMBW-1C1-20

The WEG UMBW-1C1-20 Mini Circuit Breaker is a high-performance thermal-magnetic miniature circuit breaker (MCB) engineered for robust circuit and equipment protection in industrial environments. Part of the WEG UMBW Series, this 20A, single-pole (1P) breaker combines UL489 and UL1077 certifications to deliver versatile protection for both branch circuits and equipment. Designed for reliability and safety, the UMBW-1C1-20 is ideal for applications requiring precise overcurrent and short-circuit protection, including motor circuits, distribution panels, control panels, and industrial power systems. Key Features and Benefits: - **Dual UL Certification**: Certified under UL489 for branch circuit protection and UL1077 for equipment protection, ensuring compliance with North American safety standards. This dual certification makes the UMBW-1C1-20 suitable for a wide range of industrial applications, from control panels to motor protection systems. - **Thermal-Magnetic Trip Mechanism**: The UMBW-1C1-20 integrates both thermal and magnetic trip elements to provide comprehensive protection. The thermal element responds to sustained overloads, while the magnetic element reacts instantly to short circuits, preventing equipment damage and reducing fire risks. The trip curve (C-type) offers a magnetic trip current of 4xIn (±20%), balancing sensitivity and nuisance tripping prevention for general industrial use. - **Compact and Modular Design**: With a 17.5mm width per pole, the UMBW-1C1-20 is designed for space-efficient installations in crowded control panels and distribution boards. Its modular construction allows for easy integration into DIN rail systems, and the cuttable busbar connecting system enables flexible wiring configurations, reducing installation time and complexity. - **Visual Status Indication and Positive Trip-Free Mechanism**: The breaker features a clear visual status indicator to show whether the circuit is ON or OFF, even from a distance. The positive trip-free snap-action mechanism ensures reliable switching and prevents the breaker from being held in the ON position during a fault condition, enhancing operational safety. - **Wide Voltage Compatibility**: The UMBW Series supports both AC and DC voltages, making it adaptable to diverse industrial environments. The UMBW-1C1-20 is rated for 240V AC and 125V DC (when used in series for 2-pole configurations), providing flexibility for global applications and varying power system requirements. Typical Applications: The WEG UMBW-1C1-20 Mini Circuit Breaker is widely used in industrial settings where reliable circuit protection is critical. Common applications include: - **Motor Protection**: Safeguarding motors from overloads and short circuits in industrial machinery, pumps, and HVAC systems. - **Distribution Panels**: Protecting branch circuits in control panels, switchgear, and power distribution units. - **Control Circuits**: Ensuring the integrity of control circuits in automation systems, PLCs, and industrial electronics. - **Lighting and Power Systems**: Providing overcurrent protection for lighting circuits, power outlets, and auxiliary systems in factories and commercial buildings. - **Renewable Energy Systems**: Supporting solar and wind power installations by protecting inverters, batteries, and grid-tie systems. Why Choose WEG UMBW Series? WEG is a globally recognized leader in industrial automation and electrical solutions, known for innovation, reliability, and compliance with international standards. The UMBW Series reflects WEG’s commitment to delivering high-quality circuit protection products that meet the demanding requirements of modern industrial applications. With a reputation for durability, precision engineering, and adherence to safety certifications, WEG circuit breakers are trusted by engineers and technicians worldwide. Installation and Maintenance: The UMBW-1C1-20 is designed for easy installation and maintenance. It mounts seamlessly on standard DIN rails, allowing for quick integration into existing systems. The breaker’s compact size and modular design simplify panel layout and wiring, while the clear status indicator reduces troubleshooting time. Regular maintenance involves visual inspections for signs of wear or damage, and periodic testing of the trip mechanism to ensure optimal performance. WEG provides comprehensive documentation and support to assist with installation, configuration, and compliance with local electrical codes. Selecting the Right Breaker: When choosing a miniature circuit breaker, professionals consider factors such as current rating, trip curve, voltage rating, and application requirements. The UMBW-1C1-20’s 20A rating and C-type trip curve make it ideal for general-purpose industrial applications where moderate overloads and short circuits are expected. For applications requiring higher magnetic trip sensitivity (e.g., sensitive electronics), the D-type trip curve may be more appropriate. Consulting WEG’s technical documentation or a certified distributor ensures the correct selection for your specific needs. In summary, the WEG UMBW-1C1-20 Mini Circuit Breaker is a versatile, reliable, and certified solution for industrial circuit protection. Its dual UL certification, compact design, and robust trip mechanism make it an excellent choice for engineers seeking to enhance safety and performance in their electrical systems.