The KCISE CTK-16 Split Core Current Transformer serves as a highly precise AC Current Sensor engineered specifically for complex electrical renovation projects and facility upgrades. Featuring a uniquely designed 45mm hole size and an intuitive split-core mechanism, this sensor allows technicians to clamp the unit directly over live wires. During installation, you will feel a definitive, secure snap as the latch locks into place, ensuring a tight magnetic circuit without the need to sever cables or disrupt facility power. This non-invasive approach is invaluable for modernizing electrical infrastructures in heavy manufacturing plants, commercial office towers, and large-scale residential complexes. Encased in a smooth, industrial-grade polymer shell, the unit feels substantial and resilient to the touch. By supporting versatile current ratios, including 100/5A and 200/5A, alongside robust RS485 data transmission capabilities, this transformer delivers continuous, accurate load data. It acts as the critical sensing foundation for advanced energy management platforms, preventing equipment overload while optimizing overall power consumption.

Key Features & Benefits

Tool-Free Installation & Clear Wiring Architecture

Split Core Design: The split-core architecture fundamentally changes how facility upgrades are executed. By simply opening the core, clamping it around the target conductor, and engaging the lock, technicians bypass the labor-intensive process of cutting or disconnecting primary cables. This direct-clamp method reduces onsite renovation time by 50% compared to traditional current transformers. To further eliminate field errors, the secondary output terminals feature clear wiring definitions. Installers receive immediate visual cues to prevent reversed polarity, significantly lowering the risk of miswiring.

45mm Large Hole Size: The generous internal aperture comfortably accommodates thick cables with an outer diameter of up to Φ16mm (specific to the CTK-16 model), making it highly adaptable for primary single-phase electrical lines in both commercial and industrial environments.

Lightweight & Compact: Despite its capacity, the unit maintains a small footprint (measuring exactly 54.43×45.8×66.7mm for the CTK-16), ensuring it slides effortlessly into congested electrical boxes or narrow distribution panels.

High-Precision Measurement & Industrial Safety Standards

Class 1 Accuracy: Engineered to meet strict industrial and commercial accuracy requirements, this transformer guarantees that measurement errors remain strictly within ±1%. Such exactitude is mandatory for rigorous energy metering, precise load profiling, and utility cost allocation.

Multiple Current Ratios: The sensor supports a variety of ratios—including 100/5A, 200/5A, 250/5A, and 300/5A (for CTK-16)—granting engineers the flexibility to monitor diverse current ranges (150-300A input). The exterior housing is molded from premium insulating materials compliant with UL 94V-0 flame-retardant standards. This self-extinguishing enclosure protects internal windings from environmental degradation, instilling absolute confidence when deployed in harsh settings.

Stable AC Signal Output: It consistently delivers a standard 5A output (or an optional 0.333V for specific models), interfacing flawlessly with utility meters, PLCs, and localized smart monitoring systems.

Reliable Data Transmission & Broad System Integration

RS485 Communication: Equipped with native RS485 protocols, the sensor facilitates long-distance (up to 1000m) stable data transmission. This extended reach is perfectly suited for sprawling application scenarios, including automated factory workshops, multi-story building management systems, centralized data centers, and renewable energy installations.

Single-Phase Monitoring Optimization: Tailored specifically to optimize single-phase electrical systems, the unit acts as a seamless data bridge. It perfectly matches smart meters, smart circuit breakers, and third-party energy management platforms (e.g., Tuya IoT cloud), enabling predictive maintenance and real-time load balancing.

Wide Temperature Adaptability: The transformer exhibits exceptional thermal stability, working reliably in -20℃ to 60℃ environments, maintaining its measurement accuracy even in freezing utility kiosks or sweltering industrial conditions.

Technical Specifications

Evaluating the technical parameters of your sensing equipment is crucial for ensuring long-term reliability and precise data acquisition in any electrical infrastructure project. The following table outlines the exact specifications for the KCISE CTK-16 model, detailing its capacity to handle substantial current loads while maintaining stringent accuracy classes. From its versatile input ranges to its standardized communication protocols, every metric is engineered to support complex energy audits and continuous facility monitoring. Please review the specific ratios, physical dimensions, and thermal tolerances to confirm alignment with your upcoming panel upgrades or smart grid integrations.

Our Service Advantages

Customized Ratio Options: We understand that standard specifications do not always align with specialized infrastructure requirements. We actively provide non-standard current ratios (e.g., 75/5A, 400/5A) engineered specifically for your unique customer project needs (minimum order quantity applies).

Comprehensive Package & Accessories: Every standard shipment is meticulously packed to ensure you have everything required for immediate deployment. The box includes the primary transformer unit, necessary terminal accessories, and a physical guide, allowing field personnel to verify inventory instantly upon receiving the goods.

Technical Resources & Installation Guidance: To eliminate guesswork during deployment, we offer detailed installation manuals, video tutorials, and online support to ensure correct clamping and wiring. Project engineers can also access downloadable resources, including product datasheets and standardized wiring diagrams directly from our portal.

Quality Certification: Every unit undergoes rigorous testing and complies with international electrical standards, ensuring long-term operational reliability for demanding industrial and commercial use.

Bulk Order Discounts & After-Sales Calibration: We provide preferential prices for large orders (e.g., extensive renovation projects, factory upgrades) to significantly reduce customer costs. Furthermore, to guarantee ongoing measurement fidelity, we offer free calibration services within 1 year of purchase to maintain measurement accuracy.

FAQs

Does the CTK-16 Split Core Transformer require power supply?

No, it is a completely passive device. It efficiently obtains the necessary operational energy directly from the magnetic field generated by the measured current. Because no external power supply or dedicated power wiring is needed, the installation process is remarkably simplified, reducing both material costs and potential points of failure within the electrical panel.

Can it be used for three-phase electrical systems?

The CTK-16 is explicitly designed for single-phase monitoring applications. However, it is fully adaptable for three-phase environments. For three-phase systems, we highly recommend using 3 individual units (clamping one sensor per phase conductor) to capture complete data. Alternatively, for higher capacity requirements, you might consider our specialized CTK-36 model (engineered for 300-600A three-phase current).

How to verify if the transformer is working correctly?

Field verification is a straightforward process. Simply connect the secondary output terminals to a calibrated standard ammeter or a portable power analyzer. Compare the measured current reading (generated from the transformer) with the actual known load current flowing through the primary cable. If the calculated errors remain strictly within the ±1% margin, it indicates normal operation and confirms the sensor is delivering Class 1 accuracy.