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Sigenergy SigenStor CT250A SP US
$254.10 USD
Pickup available at Shop location
Usually ready in 2 hours
The Sigenergy SigenStor CT250A is a split-phase, 250-amp external current transformer (CT) designed for use with the Sigenergy SigenStor system in US residential installations. As a Revenue Grade Meter (RGM), the CT250A provides high-accuracy energy measurement - meeting the precise standards required for utility interconnection agreements and net metering billing in many jurisdictions.
The CT250A clamps around your main service conductors to monitor real-time power flow into and out of your home, enabling the Sigenergy system to intelligently manage solar production, battery charging, and grid interaction. It is specifically designed for partial home backup configurations where select circuits are backed up rather than the whole home.
Specifications:
- Model: CT250A SP US
- Type: Split Phase External Current Transformer
- Current Rating: 250A
- Meter Grade: Revenue Grade (RGM)
- Application: Partial home backup
- Compatible With: Sigenergy SigenStor system
- Market: US residential
Have any questions? Email us at info@solwel.com or give us a call at (346) 432-4228
Frequently Asked Questions
What does a current transformer (CT) do in a solar system?
A CT clamps around your main service conductors and measures the flow of electricity in real time. This data allows the Sigenergy system to optimize how it uses solar energy, charges the battery, and draws from or exports to the grid.
What is a Revenue Grade Meter and do I need one?
A Revenue Grade Meter (RGM) provides higher accuracy energy measurements that meet utility billing standards. Many utilities and jurisdictions require RGM-grade CTs for net metering agreements. Check with your local utility to confirm whether this is required for your installation.
What is the difference between the CT250A and the CT200A?
The CT250A is rated for 250A service and is used in partial home backup configurations. The CT200A is rated for 200A service. Your installer will specify the correct model based on your main service panel amperage and system design.
Is this compatible with all Sigenergy systems?
The CT250A is designed specifically for use with the Sigenergy SigenStor system in US split-phase residential installations. Contact our team to confirm compatibility with your specific system configuration.
Is professional installation required?
Yes - CT installation involves working with main service conductors and must be performed by a licensed electrician or solar professional. Solwel offers professional installation at our Houston and Dallas locations.