--- product_id: 23002212 title: "Cheng USA T30 T-30 30Amp Transfer Switch" brand: "wfco" price: "Β₯34472" currency: JPY in_stock: true reviews_count: 8 category: "Wfco" url: https://www.desertcart.jp/products/23002212-cheng-usa-t30-t-30-30amp-transfer-switch store_origin: JP region: Japan --- # 30 Amp current rating Seamless 2-way automatic switching IP54 dust & splash protection Cheng USA T30 T-30 30Amp Transfer Switch **Brand:** wfco **Price:** Β₯34472 **Availability:** βœ… In Stock ## Summary > πŸ”Œ Power up your lifestyle with seamless switchingβ€”never miss a beat! ## Quick Answers - **What is this?** Cheng USA T30 T-30 30Amp Transfer Switch by wfco - **How much does it cost?** Β₯34472 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/23002212-cheng-usa-t30-t-30-30amp-transfer-switch) ## Best For - wfco enthusiasts ## Why This Product - Trusted wfco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Robust 30 Amp Capacity:** Handles up to 3600 watts, perfect for demanding RV or solar setups. - β€’ **Durable IP54 Rated Design:** Engineered to resist dust and water splashes, ensuring reliable outdoor or mobile use. - β€’ **Certified Frustration-Free:** Backed by a 2-year warranty and a 4.5-star rating from 287 users who trust its flawless performance. - β€’ **Plug-and-Play Compatibility:** Designed to slip right onto WFCO RV Power Centers for quick, secure installation. - β€’ **Effortless Power Source Switching:** Automatically toggles between grid and inverter power to keep you connected without manual hassle. ## Overview The Cheng USA T30 T-30 30Amp Transfer Switch is a rugged, IP54-rated electronic rotary switch designed for automatic, safe transfer between shore power and inverter or generator sources. With a 30 Amp current rating and 3600 watt capacity, it ensures reliable power management for RVs and solar setups. Its plug-in design fits WFCO RV Power Centers, offering hassle-free installation and a 2-year warranty for peace of mind. ## Description Buy Cheng USA T30 T-30 30Amp Transfer Switch: Automotive - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Great as an automatic bus transfer for my solar power. - When I turn my inverter on it automatically switches to solar power. When I turn the inverter off (or it shuts down due to low battery or whatever) it switches back to grid power. It has worked flawlessly for over a year. However it is NOT an uninterruptable power supply. It takes a fraction of a second to switch and this will cause electronics to reset and the lights will flicker when it shifts. It has shifted my power (average load about 350 watts) almost every day for a year with no problems. Highly recommended. Review: Made to slip right on to the back of a WFCO RV Power Center. - This switch is made to switch between shore power and the onboard generator seamlessly and safely. I used it to switch between shore power and a 2000 watt inverter, and it works seamlessly. As the inverter comes online and up to power the unit rolls over to that source without ever having both sources connected at once. This is important, since shore power can ruin an inverter. ## Features - Product Type:Electronic Switch - Item Package Dimension:15.24 cm L X19.05 cm W X24.384 cm H - Item Package Weight:2.123 kg - Country Of Origin: China ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008OJ7EIA | | Actuator Type | Rotary | | Brand | WFCO | | Brand Name | WFCO | | Circuit Type | 2-way | | Color | SILVER | | Connectivity Protocol | X-10 | | Connector Type | Plug In | | Contact Material | Copper | | Contact Type | Normally Closed | | Control Method | Sensor | | Control Type | Electronic | | Controller Type | Touchscreen | | Current Rating | 30 Amps | | Customer Reviews | 4.5 out of 5 stars 286 Reviews | | Global Trade Identification Number | 00816227010926 | | Included Components | WFCO Electronics T-30 Automatic Transfer Switch 30A | | International Protection Rating | IP54 | | Item Dimensions | 6 x 5 x 5 inches | | Item Type Name | WFCO Electronics T-30 Automatic Transfer Switch 30A | | Item Weight | 4.3 Pounds | | Manufacturer | WFCO | | Material Type | Steel | | Model | T-30 | | Mounting Type | Surface Mount | | Number of Items | 1 | | Number of Positions | 2 | | Operating Voltage | 120 Volts | | Operation Mode | Electronic | | Part Number | T-30 | | Specification Met | certified frustration-free | | Switch Type | Rotary | | Terminal | Through Hole | | UPC | 816227010926 | | Unit Count | 1.0 Count | | Warranty Description | 2 YEAR | | Wattage | 3600 watts | ## Product Details - **Brand:** WFCO - **Connector Type:** Plug In - **Contact Type:** Normally Closed - **Current Rating:** 30 Amps - **Item dimensions L x W x H:** 6 x 5 x 5 inches - **Material:** Steel - **Operating Voltage:** 120 Volts - **Operation Mode:** Electronic - **Switch Type:** Rotary - **Terminal:** Through Hole ## Images ![Cheng USA T30 T-30 30Amp Transfer Switch - Image 1](https://m.media-amazon.com/images/I/81LtsU3FCsL.jpg) ![Cheng USA T30 T-30 30Amp Transfer Switch - Image 2](https://m.media-amazon.com/images/I/91x12G2mNsL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great as an automatic bus transfer for my solar power. *by G***N on November 13, 2022* When I turn my inverter on it automatically switches to solar power. When I turn the inverter off (or it shuts down due to low battery or whatever) it switches back to grid power. It has worked flawlessly for over a year. However it is NOT an uninterruptable power supply. It takes a fraction of a second to switch and this will cause electronics to reset and the lights will flicker when it shifts. It has shifted my power (average load about 350 watts) almost every day for a year with no problems. Highly recommended. ### ⭐⭐⭐⭐⭐ Made to slip right on to the back of a WFCO RV Power Center. *by P***Y on March 8, 2020* This switch is made to switch between shore power and the onboard generator seamlessly and safely. I used it to switch between shore power and a 2000 watt inverter, and it works seamlessly. As the inverter comes online and up to power the unit rolls over to that source without ever having both sources connected at once. This is important, since shore power can ruin an inverter. ### ⭐⭐⭐⭐⭐ Works great *by C***. on January 4, 2024* Hooked this up in my RV to separate the shore/portable generator side from the invertor side. Switches over nicely as intended and hasn't skipped a beat. Solidly built, rather rugged and while I haven't had it all that long, I would believe it would last quite awhile based on how it is built. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/23002212-cheng-usa-t30-t-30-30amp-transfer-switch](https://www.desertcart.jp/products/23002212-cheng-usa-t30-t-30-30amp-transfer-switch) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-11*