High Accuracy Split-Core Current Transformer SCTK691C Series for HVAC and Power Distribution Systems

The SCTK691C series split-core current transformer is designed for power distribution systems, power monitoring, and relay protection applications. The rated input is 0-1000A, with output of 0.333VAC or 0-5A. The product uses a snap-fit split-core structure that allows quick installation without disconnecting or removing existing cables, significantly reducing installation cost and time. The fully sealed epoxy potting process ensures excellent insulation performance and anti-interference capability. The completely enclosed structure provides good mechanical strength and environmental adaptability. Accuracy classes range from Class 0.2 to Class 1.0, meeting different requirements from precision metering to general protection. It is widely used in relay protection devices, motor current monitoring, lighting systems, HVAC, and anti-tampering electricity meters.

• Test range: 0A - 1000A AC input, output of 0.333VAC or 0-5A
• Test precision class: 0.2, 0.5 ,1.0
• Encapsulated with epoxy resin to ensure strong insulation ability
• Reliable linear performance transformers
• Clamp leaker current transformer
• Clamp-on current transformers
• Locking snap current transformers
• Strong anti-magnetic disturbance epoxy current transformers, completely enclosed, good mechanical behavior
• Linear output current, high precision

1. Relay protection device
2. Current measurement, monitoring and protection for electrical wiring and equipment.
3. Current and power measurement for electric motors, lighting, air compressor
4. Heating and ventilation system, air-condition equipment and automation – control system.
5. Current, power and energy monitoring device.
6. Suitable for various environments, strong voltage isolation ability, delicate appearance
7. Suitable for single-phase electricity meter as well as anti-tampering electricity meter

Notes: Product specifications can be customized

Q: What is the difference between 0.333VAC output and 0-5A output? How to choose?

A: 0.333VAC output is a low-voltage signal, suitable for electronic energy meters, PLCs, and measurement instruments. 0-5A output is a traditional current signal, suitable for mechanical meters, relays, and protection devices. Please choose based on your measurement equipment input interface.

Q: What accuracy classes are available? How to select?

A: Three accuracy classes are available: Class 0.2, Class 0.5, and Class 1.0. Class 0.2 is suitable for precision energy metering. Class 0.5 is suitable for general industrial measurement. Class 1.0 is suitable for protection applications and conventional indicating instruments. Please select based on the accuracy requirements of your application.

Q: How to apply for samples? What is the lead time?

A: You can submit a sample application through our website or email. Please provide your company information and target model. Samples are free of charge and will be shipped within 3-5 working days. Mass order lead time is generally 2-8 weeks.