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enphase|SKU:CT-200-SPLIT

Enphase CT-200-SPLIT Consumption Monitor — Split-Core Current Transformer for Envoy-S

See Exactly What Your System Consumes

Real-time consumption data — Feeds live usage to Enlighten
Split-core design — Snaps on without rewiring
Revenue-grade metering — Meets production accuracy standards
Indoor or outdoor rated — Installs wherever your panel sits
Five-year warranty — Backed by Enphase directly
  • FREE System Design Consultation -- Our engineers size your system for your actual consumption
  • FREE Shipping -- Ships free to your door, no minimum order

$32.95

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Enphase CT-200-SPLIT Consumption Monitor
Enphase CT-200-SPLIT Consumption Monitor
$32.95

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In the box

  • 1x Enphase CT-200-SPLIT split-core current transformer
Enphase CT-200-SPLIT Consumption Monitor
Enphase CT-200-SPLIT Consumption Monitor — Split-Core Current Transformer for Envoy-S
$32.95

See Exactly What Your System Consumes

The Enphase CT-200-SPLIT consumption monitor gives you real-time visibility into your energy usage through the Envoy-S gateway and Enphase Enlighten software. This split-core current transformer snaps onto your main feed without rewiring, making it a field-tested addition to any grid-independent energy setup. With bidirectional communications and remote upgrade capability, it delivers the data you need to manage your system without guesswork. Designed for indoor or outdoor installation and backed by a five-year warranty.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
Split-Core Design
5-Year Warranty
Indoor / Outdoor Rated
Remote Upgradable
5 Years
Manufacturer Warranty
1
CT Included
Split-Core
Transformer Type
See Exactly What Your Home Draws

See Exactly What Your Home Draws

The biggest trap in going off-grid is guessing your consumption. You size a battery bank based on estimates, then find out your well pump and refrigerator spike harder than you planned. The CT-200-SPLIT eliminates that guesswork by feeding real-time consumption data into your Envoy-S gateway and Enphase Enlighten dashboard. You see exactly what your home pulls — by the minute, by the circuit. This is the kind of component we vet before stocking: it integrates directly with the Enphase ecosystem, no protocol mismatches, no compatibility headaches. Off Grid Vault carries it because it works within the architecture, not against it.

Snap-On Install Without Rewiring Your Panel

Snap-On Install Without Rewiring Your Panel

The split-core design means you open the transformer, clip it around your existing service conductor, and close it. No disconnecting wires, no pulling breakers, no calling an electrician for a multi-hour job. For a homesteader or cabin builder who is already hands-on with their system, this is how monitoring accessories should work. The CT-200-SPLIT is rated for installation indoors or outdoors, so whether your main panel is in a conditioned utility room or mounted on an exterior wall, its weatherproof build handles the environment. Enphase backs it with a five-year warranty, which tells you they expect it to last well beyond that in field-tested conditions.

Revenue-Grade Data Through Enphase Enlighten

Revenue-Grade Data Through Enphase Enlighten

This is not a ballpark estimator. The CT-200-SPLIT delivers revenue-grade metering accuracy to the Enphase Enlighten platform, the same standard used for production reporting. You get bidirectional communication through the Envoy-S gateway, meaning firmware updates and configuration changes happen remotely — no truck roll, no site visit. The Installer Toolkit mobile app handles initial setup. For anyone who has spent time on DIYsolarforum.com comparing monitoring setups, this is the Enphase-native path: no third-party integrations, no data lag, no parsing mismatched CSV exports. Your consumption data lives right next to your production data in one dashboard.

Compatibility Check

Confirm your system is ready for the CT-200-SPLIT before ordering.

  • Requires Enphase Envoy-S communications gateway for operation
  • Split-core design allows installation on existing wiring without disconnection
  • Data delivered through Enphase Enlighten monitoring and analysis software

Where This Fits

Track consumption data across a range of off-grid and backup energy setups.

Homestead Energy Monitoring
Remote Cabin Oversight
Battery-Integrated Systems

Full specifications

At a glance

Warranty
5 Years
Full specifications4 data points across 4 categories

Dimensions

SpecificationsSee product page

Power & Performance

SpecificationsSee product page

Materials

SpecificationsSee product page

Compliance & Warranty

Warranty5 Years

The Off Grid Vault Promise

Every product we carry earns its place on our shelf. Here is what you can count on.

Free ShippingShips free to your door — no minimums, no thresholds, no fine print.
30-Day Performance GuaranteeIf it does not perform as specified, we make it right — uninstalled returns accepted within 30 days.
Expert Support After the offerOur team knows off-grid systems. Reach out before or after your purchase for real guidance from people who build these systems.
★★★★★
“Added this to my Envoy-S setup last month. Before, I could see what my panels were producing but had no idea what the house was actually pulling. Now I can see exactly when the well pump kicks on and how much the fridge draws overnight. Made me realize I needed another 5 kWh of battery capacity. Worth every penny for the visibility alone.”
F
First L.Prescott, AZ

Enphase Consumption Monitor

Enphase, Envoy S Consumption monitoring CT, split core current Transformers, Qty. 1, CT-200-SPLIT

The Enphase Envoy-S communications gateway delivers solar production and energy consumption data to Enphase Enlighten monitoring and analysis software for comprehensive, remote maintenance and management of the Enphase System.

With revenue grade production metering and consumption monitoring options, Envoy-S is the platform for total energy management and integrates with the Enphase AC Battery.

Features

Smart – Enables web-based monitoring and control. Bidirectional communications for remote upgrade.
Simple – Easy system configuration using Installer Toolkit mobile app. Flexible networking with Wi-Fi, Ethernet or cellular.
Reliable – Designed for installation indoors or out. Five year warranty

 

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Frequently Asked Questions

The Envoy-S gateway ships with production metering built in, but it does not include consumption monitoring out of the box. The CT-200-SPLIT is the dedicated accessory that adds real-time home consumption data to your Enlighten dashboard. Without it, you can see what your solar system produces but not what your home actually draws. For anyone serious about understanding their energy profile — especially when sizing battery storage or evaluating whether to go grid-independent — this is the missing piece.
The CT-200-SPLIT is designed specifically for the Enphase Envoy-S gateway and Enphase Enlighten platform. It is not a universal current transformer — it communicates through the Enphase protocol and is recognized by the Envoy-S during setup. If you are running a Victron, EG4, or Sol-Ark system, you would need the CT specified by that manufacturer. Off Grid Vault carries monitoring accessories across multiple platforms, so contact us with your system details and we will point you to the correct part.
A generic split-core CT will output a raw current signal, but the Envoy-S gateway needs to recognize the CT's calibration profile to translate that signal into accurate wattage readings in Enlighten. The CT-200-SPLIT is calibrated to Enphase specifications and identified by the Envoy-S during configuration. A mismatched CT will give you wrong consumption numbers — which defeats the entire purpose of adding monitoring. Off Grid Vault stocks the exact Enphase part because accuracy in consumption data is not optional when you are making decisions about battery sizing and system expansion.
For standard residential monitoring with the Envoy-S, Enphase typically uses one CT-200-SPLIT on the main service conductor to capture whole-home consumption. If your setup has a separate sub-panel for solar or battery — for example, a dedicated load panel in a split-phase system — you may need additional CTs. The exact number depends on your panel configuration. Contact Off Grid Vault with your panel layout and we will confirm the right quantity before you order. No guesswork, no returns for wrong parts.
Enphase provides a five-year warranty on the CT-200-SPLIT. Off Grid Vault is an authorized Enphase dealer, which means warranty claims go through us — not through a support ticket queue with an unknown response time. If the CT fails to perform as specified within that five-year window, we handle the claim directly. This is part of why we only stock components from manufacturers with real warranty infrastructure. A five-year warranty on a current transformer also signals that Enphase expects proven durability, not just lab-rated performance.
The split-core design is intended for straightforward installation — you open the CT, clamp it around your service conductor, and close it. However, you are working inside an electrical panel with live or potentially energized conductors. If you are comfortable around your breaker panel and follow proper safety procedures, this is a manageable DIY task. If not, any licensed electrician can install it in under fifteen minutes. Off Grid Vault includes the installation guide with every order, and our team is available if you have questions during setup.
Consider what you lose without it: the ability to see your actual consumption alongside your solar production. That data drives every decision about whether your system is properly sized, whether you need more battery capacity, and whether your investment is actually eliminating your utility costs. For a system that represents thousands of dollars, a $32.95 monitoring accessory that gives you verified consumption numbers is a small line item with outsized decision-making value. Off Grid Vault stocks it because serious system builders do not skip the monitoring step.
SKU: CT-200-SPLIT Category: Brand:

The Off Grid Vault Promise

Every product we carry earns its place on our shelf. Here is what you can count on.

Free Shipping Ships free to your door — no minimums, no thresholds, no fine print.
30-Day Performance Guarantee If it does not perform as specified, we make it right — uninstalled returns accepted within 30 days.
Expert Support After the offer Our team knows off-grid systems. Reach out before or after your purchase for real guidance from people who build these systems.

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About enphase Monitoring Adapter

enphase is a trusted manufacturer of premium monitoring adapter. OffGridVault is an authorized dealer offering the full enphase lineup with free delivery, price match guarantee, and expert support.

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