The UPL12-21119-1 is a hydraulic-magnetic circuit breaker manufactured by Sensata Technologies/Airpax. These circuit breakers are designed to provide reliable and accurate circuit protection in a variety of applications. Hydraulic-magnetic circuit breakers offer advantages over traditional thermal circuit breakers, particularly in environments with fluctuating ambient temperatures, as their trip characteristics are less affected by temperature variations.

Applications

• Power distribution units (PDUs)
• Uninterruptible power supplies (UPSs)
• Generators
• Marine applications
• Telecommunications equipment
• Industrial control systems
• Medical equipment

Features

• Hydraulic-magnetic technology: Provides stable trip characteristics across a wide range of temperatures.
• Precise circuit protection: Accurately trips in response to overcurrent conditions, protecting sensitive equipment.
• Various current ratings: Available in a range of current ratings to suit different application requirements.
• Voltage ratings: Designed to operate at specified AC and DC voltage levels.
• Multiple pole configurations: Offered in single, double, and triple pole configurations.
• Trip-free operation: Prevents the breaker from being held closed during an overcurrent condition.
• RoHS compliant: Meets Restriction of Hazardous Substances directives, ensuring environmental compliance.

Benefits

• Reliable performance: Consistent and dependable circuit protection.
• Temperature stability: Minimal derating required at elevated temperatures.
• Long life: Designed for extended operational lifespan.
• Equipment protection: Prevents damage to connected equipment due to overcurrents and short circuits.
• Safety: Enhances safety by quickly interrupting fault currents.

Additional Details

The UPL series is known for its compact size and high interrupting capacity. It is often used in applications where space is limited but reliable circuit protection is crucial. The hydraulic-magnetic mechanism uses a magnetic field generated by the current flowing through a coil to actuate the trip mechanism. This allows for precise and repeatable tripping characteristics. Specific electrical specifications will vary depending on the exact model within the UPL12 series, including voltage rating, current rating, interrupting capacity, and terminal options. Detailed datasheets should be consulted for specific applications and installation requirements.