Core Current Sensor | 100A 333mV Output | Clamp-On CT Design

This split core current transformer is a clamp-on sensor. It measures AC current without needing to disconnect or cut wires. Its hinged body simply closes around a conductor. This makes installation safe and quick. It's a useful tool for checking electrical use and system loads. Features and Benefits - Non-Invasive Design - The split-core clamp lets you put the current sensor on without any circuit downtime or electrical work. - Many Current Ratings - It comes in models for 30A, 50A, 100A, and 150A circuits. This matches your specific measurement needs. - Standardized Outputs - It gives a low-voltage output signal (333mV or 1V). This works with many energy meters and data loggers. - Secure Latching - A strong latch keeps the transformer closed. This ensures steady contact for accurate readings. Applications - Energy Monitoring - Connect it to a power meter to track electricity use for a whole building, a sub-panel, or a single large appliance. - Load Balancing - Measure current on individual phases. This helps find and fix imbalances in three-phase power systems. - EV Charging Stations - Watch the real-time power draw of electric vehicle chargers. This manages energy and prevents overloads. Common Sensing Methods A current sensor is a device that detects and measures the flow of electrical current. These sensors convert the current into a measurable output, often a voltage or a digital signal, which can then be interpreted by other equipment. This Core Current Sensor uses a Split Core Current Transformer (CT) design to achieve its measurements. Understanding how these sensors operate is crucial for accurate electrical monitoring and safety in various applications. Direct (Resistive) Sensing Direct sensing methods, such as shunt resistors, work by placing a known resistance directly in series with the circuit where the current is to be measured. The voltage drop across this resistor is then proportional to the current flowing through it, according to Ohm's Law. This Core Current Sensor does not employ direct resistive sensing. Direct sensing is generally suitable for DC currents and smaller AC currents, but can introduce power loss and heat generation in the circuit. Indirect (Magnetic / Non-Contact) Sensing Indirect sensing methods, like the Split Core Current Transformer (CT) used in this product, operate without direct electrical contact with the circuit being measured. They detect the magnetic field generated by the current flow. This Core Current Sensor clamps around the conductor, allowing for easy installation without interrupting the circuit. The QNCTK1-16 model provides a 333mV output for 100A or 1V for 150A, while the QNCTK1-10 offers a 333mV output for 50A or 1V for 30A. This non-invasive approach is ideal for safely measuring high currents. Key Applications This Core Current Sensor is suitable for a range of applications where non-invasive current measurement is required. Its clamp-on CT design makes it particularly useful for monitoring electrical loads in existing installations without needing to disconnect wires. Common uses include energy monitoring, load balancing in electrical panels, and fault detection in industrial and commercial settings. The various input current options, such as 50A, 30A, 100A, and 150A, ensure versatility for different system requirements.