FranklinWH ACCY-CT200V2-US Split Current Transformer Kit
The FranklinWH Split Current Transformer Kit (ACCY-CT200V2-US) allows the aGate to accurately measure energy flow from remote solar arrays, sub-panels, or grid connections that are physically distant or electrically separated from the main unit. This ensures your system has a complete picture of your home’s energy usage for precise control and monitoring.
Line-Side PV System Metering
- For homes where the solar system is connected via a “line-side tap” (connected between the utility meter and the main breaker), the aGate’s internal sensors cannot naturally see the solar production. This kit clamps onto those solar wires to capture that generation data, ensuring your app correctly reports your total solar output and battery charging capability.
Line-Side Sub-Panel Metering
- If you have a sub-panel that branches off before your main service panel (often used for detached garages, gates, or large pumps), the aGate typically misses these loads. By installing these CTs on the sub-panel feeders, you ensure that the FranklinWH system accounts for this energy usage, preventing unmonitored drains on your system.
Product Specifications
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Rated Current: 200 A
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Signal Output: 40 mA
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Clamp Opening: 0.94″ ± 0.02″ (24 mm ± 0.5 mm)
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Cable Type: Twisted Pair (Black & White)
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Measurement Accuracy: ± 3%
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IP Rating: IP30 / NEMA 1 (Indoor use or inside an enclosure)
General Data
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Kit Contents: 2x Split CTs, 1x Terminal Block, 1x 50ft Cable
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Weight (Net): 0.66 lbs (0.3 kg)
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Operating Temperature: -40°F to 185°F (-40°C to 85°C)
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Manufacturer Part Number: ACCY-CT200V2-US
Frequently Asked Questions
Q1: Why do I need line-side metering? If your solar or a sub-panel is connected before the aGate (line-side), the aGate cannot measure that power internally. These CTs provide the necessary data so your app shows the correct generation and consumption numbers.
Q2: Can I extend the cable beyond 50 feet? It is generally not recommended to extend the cable beyond the factory 50 ft (15 m) as it may decrease metering accuracy. If you need a longer distance, consult your certified installer for approved signal amplification methods.
Q3: Does this require shutting off my power to install? While the “split-core” design technically allows clamping without disconnecting wires, safety regulations usually require turning off the circuit or main breaker during installation to ensure the installer’s safety.
Q4: Is this waterproof? No. The CTs have an IP30 / NEMA 1 rating, meaning they are designed for indoor use or must be installed inside a weatherproof electrical enclosure (like your main breaker panel).
Q5: How many CTs come in the box? The kit includes two (2) current transformers, which is standard for measuring split-phase (120/240V) power in North American homes.



