--- product_id: 82356598 title: "PZCT-02 Split Core Current Transformer Coil Sensor for 100A Meter" brand: "hilitand" price: "£15.20" currency: GBP in_stock: true reviews_count: 5 category: "Hilitand" url: https://www.desertcart.co.uk/products/82356598-pzct-02-split-core-current-transformer-coil-sensor-for-100a store_origin: GB region: United Kingdom --- # 100A max current rating Snap joint for tool-free install 0.5 accuracy grade & strong isolation PZCT-02 Split Core Current Transformer Coil Sensor for 100A Meter **Brand:** hilitand **Price:** £15.20 **Availability:** ✅ In Stock ## Summary > ⚡ Snap, Measure, Dominate: The Mini Transformer Power Move ## Quick Answers - **What is this?** PZCT-02 Split Core Current Transformer Coil Sensor for 100A Meter by hilitand - **How much does it cost?** £15.20 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/82356598-pzct-02-split-core-current-transformer-coil-sensor-for-100a) ## Best For - hilitand enthusiasts ## Why This Product - Trusted hilitand brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision You Can Trust:** 0.5 grade accuracy ensures reliable energy metering for professional-grade monitoring. - • **Universal Compatibility:** Works seamlessly with 220V & 380V AC power lines for versatile industrial and commercial use. - • **Built for Harsh Environments:** Fully enclosed with UL94-Vo flame resistance and wide -40℃ to +85℃ operation range. - • **Compact & Lightweight Design:** Miniature 59g form factor fits tight spaces with zero hassle. - • **Effortless Snap-On Installation:** Clamp around cables without disconnecting—save time and avoid downtime. ## Overview The PZCT-02 Split Core Current Transformer is a compact, lightweight sensor designed for precise 100A current measurement with 0.5 grade accuracy. Featuring a snap joint structure, it installs quickly without disconnecting cables, making it ideal for energy meters in 220V and 380V AC systems. Built to withstand harsh environments with strong voltage isolation and flame resistance, this UL-certified transformer delivers reliable performance in a miniature form factor. ## Description Product description Specifications Environment temperature: -40℃~+85℃ Relative humidity: ≤ 90%(40℃) Working frequency: 50Hz~60Hz Insulation endurance grade: B grade (130℃) Insulation resistance: >1000MΩ normally Dielectric strength: can afford power frequency 1000V/1minute Flame resistance: Conform to UL94-Vo grade Internal resistance: 10Ω Measuring range: 0-100A, Weight:59g Package Included: 1 x Current Transformer Current Sensor PZCT-2 miniature open-close current transformer is the smallest transformer of its kind (output 100MA). The inner hole diameter is 16mm, the accuracy is ≤0.5 grade, and it adopts a buckle structure. The product can be directly fixed to the cable with a nylon tie. It is compact Beautiful, small space, quick installation. Application Scope This transformer is dedicated to the measurement of electric energy meters, and can be applied to AC 220v 380v power supply lines. The opening-closing type transformer can be convenient to install the metering electric energy meter when the main circuit is not energized. Features The input coil is built-in; it is small and light, and the buckle type is convenient for quick installation. Fully enclosed, good mechanical and environmental resistance, strong voltage isolation, safe and reliable. Note The primary of the current converter should be connected in series in the current loop under test, and the secondary should be approximately working in a short circuit state. The secondary circuit of the current converter is not allowed to be open, so please do not install a fuse. Review: 1000:1 current transformer much easier to install - Although my volt/amp/watt/KWH meter module came with a 1000:1 current transformer, it would have been very difficult to disconnect one of the #4 gauge wires to my HVAC unit to install it. This transformer just snaps around the wire and job done. The plastic case is substantially larger than the other current transformer but fortunately there was plenty of space in the breaker box to install it. Review: Connects without having to disconnect electrical connects to UNIT UNDER TEST. - Liked the hinged split core. Easy to clamp around the power lead wire. ## Features - SMALL AND LIGHT: This current transformer Built-in input coil; small and light, easy to install. - SNAP JOINT STRUCTURE:The diameter of inner hole is 16mm, the accuracy is 0.5 grade, Using snap joint structure, it can be fixed to the cable directly through nylon ties. - GOOD MECHANICAL PROPERTIES: Fully enclosed, good mechanical properties and environmental resistance, strong voltage isolation capability, safety and reliability. - USED FOR ENERGY METER IN SPECIAL: Current transducer used for energy meter in special; AC 220v, 380v power supply can both be applied. - MINI SIZE:This is a mini split base current transformer; it's the smallest one compared to the similar products (output 100MA). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07G16GBMS | | Best Sellers Rank | #269,975 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Current Transducers | | Brand | Hilitand | | Brand Name | Hilitand | | Current Rating | 100 Amps | | Customer Reviews | 4.3 out of 5 stars 58 Reviews | | Item Weight | 2.08 ounces | | Manufacturer | Hilitand | | Maximum Frequency | 60 Hz | | Minimum Frequency | 50 Hz | | Model | PZCT-02 | | Mounting Type | Cable Mount | | Part Number | Hilitandy4segzoq1u | | Specification Met | UL | | UPC | 792172983594 700890345150 | ## Product Details - **Brand:** Hilitand - **Current Rating:** 100 Amps - **Item Weight:** 2.08 ounces - **Mounting Type:** Cable Mount - **Specification Met:** UL ## Images ![PZCT-02 Split Core Current Transformer Coil Sensor for 100A Meter - Image 1](https://m.media-amazon.com/images/I/51GmMU1d2fL.jpg) ## Questions & Answers **Q: how can i tell what the ratio is? or better yet, what is the nominal ratio of this current transformer? thanks** A: The ratio is exactly 1000:1. So 1 amp passi g through the center hole will induce a current of 1 mliamp in the secondary. If you connect a 10 Ohm resistor across the secondary., you would get 10 .mllivolts across the resistor. 100 amps would produce 1 volt. A 1/4 watt resistor is big enough. **Q: Will these work with the shelly em? will it work in conjunction with shelly on p2 probes?** A: Yes, it will work because they both operate under the same principle for measuring current signals. It's just another brand of CT with a higher current rating. **Q: Are these unbranded identical to the Shelly CT's?** A: Are not the same. **Q: Details says internal resistance is 10ω, but my multimeter says 54ω when measuring between the ends. it accurately measures other ω. is this expected?** A: Not expected, it is detected in real time. The actual resistance is about 54Ω. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 1000:1 current transformer much easier to install *by H***L on January 11, 2022* Although my volt/amp/watt/KWH meter module came with a 1000:1 current transformer, it would have been very difficult to disconnect one of the #4 gauge wires to my HVAC unit to install it. This transformer just snaps around the wire and job done. The plastic case is substantially larger than the other current transformer but fortunately there was plenty of space in the breaker box to install it. ### ⭐⭐⭐⭐⭐ Connects without having to disconnect electrical connects to UNIT UNDER TEST. *by J***N on May 22, 2024* Liked the hinged split core. Easy to clamp around the power lead wire. ### ⭐ Supposed to have a burden resistor, neither one did. *by W***S on November 21, 2023* Can't give it zero stars. I have two of these PZCT-02. It is marked indicating a 10 ohm burden resistor. I get 55 ohms across the leads. Clamping it around a cord powering a 100W 120V incandescent bulb I get nearly 6v. If you use the typical conditioning circuit for use with a arduino or esp32 you are likely going to smoke things. I bought these back in March of 2023 before I retired and just got around to trying them out. I guess I can put my own burden resistor on this and salvage the purchase but I shouldn't have had to. ## Frequently Bought Together - PZCT-02 Split Core Current Transformer Coil Sensor for 100A Amp Energy Meter - AC Current Sensor Transformer, Core Current Transformer Coil Sensor for 200A Amp Energy Meter - GV23AT 3 Phase AC Ammeter Tester Meter Generator Three-p Digital Display Current Meter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/82356598-pzct-02-split-core-current-transformer-coil-sensor-for-100a](https://www.desertcart.co.uk/products/82356598-pzct-02-split-core-current-transformer-coil-sensor-for-100a) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-28*