You are here: Home » Products » Others » Split Core Current Transformer

Split Core Current Transformer

The Split Core Current Transformer (Split Core CT) is a non-invasive current measurement device designed for AC power systems, supporting an input current range of 5A-800A AC with standard 5A/1A output signals. Its patented split-core structure enables no-power-disruption installation—simply clamp it onto busbars or cables, making it ideal for power system retrofits, energy consumption monitoring, and equipment maintenance. With a 0.5-class accuracy rating, it operates reliably in harsh environments: -30℃~+70℃ temperature, 3000m altitude, and ≤90% humidity, serving as the perfect choice for industrial, building, and renewable energy systems.

Quantity:
Availability:





Inquire Add to Basket

Split Core Current Transformer 0.5 Class Accuracy CT No Power Disruption Current Sensor High Altitude Compatible Current Transformer Compact Split Core CT for Energy Monitoring

Product Advantages

Technical Parameters

Applications

FAQ

Patented Split-Core Design

Clamp-type open-close structure allows installation in ≤1 minute without circuit shutdown, reducing construction costs by 90% compared to traditional CTs.

High-Precision Measurement

0.5-class accuracy, phase error ≤±1°, linearity ±0.2%, meeting strict requirements for energy metering and relay protection.

Wide Environmental Adaptability

Withstands extreme temperatures (-30℃~+70℃) and high altitudes (3000m), IP54 protection against dust and moisture, and a service life of ≥15 years.

Lightweight & Compact

40% smaller than traditional CTs, weighing ≤0.5kg (150A model), perfect for narrow electrical panel spaces.

Parameter

Value

Rated Primary Current (Ip)

5A-800A AC

Rated Secondary Current (Is)

5A/1A (optional)

Accuracy Class

0.5 class

Rated Voltage

660V AC

Frequency Range

50Hz-60Hz

Insulation Resistance

3000V AC withstand for 1min

Operating Temperature

-30℃ ~ +70℃

Burden

≤1VA Protection

Class

IP54

Power System Retrofit: Upgrade old switchgear online by installing current monitoring modules without power outage.

Industrial Equipment Monitoring: Real-time current measurement for motors and inverters (e.g., injection molding machines, air compressors) to optimize energy management.

Renewable Energy Systems: Monitor output current of PV inverters, with DC-side custom models available (DC insulation module optional). Smart Meter Integration: Provide precise energy metering data for commercial buildings and data centers, supporting Modbus RTU communication.

Q1: Does installation require power shutdown?

A: No! The split-core design supports live installation, but follow safety protocols (wear insulated gloves).

Q2: Can it measure DC current?

A: This series is for AC only. For DC measurement, select a Hall-effect sensor (0-1000A DC supported).

Q3: How to choose between 5A and 1A output?

A: 5A is for short-distance direct connection (≤50m), while 1A is ideal for long-distance transmission or high-precision energy meters.

Q4: Does high humidity affect accuracy?

A: The sealed structure ensures no impact at ≤90% humidity, but use a moisture-proof box in dew-prone environments.

Q5: What’s the maximum busbar size supported?

A: Standard models fit busbars ≤50mm in diameter, with custom 80mm available (provide busbar cross-sectional drawings).