--- product_id: 129793815 title: "Current Sensing Switch, Normally Open Current Sensing Switch Adjustable AC 0.2-30A SZC23-NO-AL-" brand: "walfront" price: "SAR 113" currency: SAR in_stock: true category: "Walfront" url: https://www.desertcart.com.sa/products/129793815-current-sensing-switch-normally-open-current-sensing-switch-adjustable-ac store_origin: SA region: Saudi Arabia --- # 0.2-30A adjustable current range LED status indicator 2000V isolation withstand voltage Current Sensing Switch, Normally Open Current Sensing Switch Adjustable AC 0.2-30A SZC23-NO-AL- **Brand:** walfront **Price:** SAR 113 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead with precision sensing that never sleeps! ## Quick Answers - **What is this?** Current Sensing Switch, Normally Open Current Sensing Switch Adjustable AC 0.2-30A SZC23-NO-AL- by walfront - **How much does it cost?** SAR 113 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/129793815-current-sensing-switch-normally-open-current-sensing-switch-adjustable-ac) ## Best For - walfront enthusiasts ## Why This Product - Trusted walfront brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Safety Design:** Self-extinguishing ABS casing with 2000V isolation withstand voltage - • **Instantaneous Switching:** Millisecond-level response speed for real-time monitoring - • **Self-Powered Efficiency:** Operates without external power, reducing installation complexity - • **Precision Current Control:** Adjustable 0.2-30A range for tailored AC sensing - • **Clear Operational Feedback:** Integrated LED indicator ensures intuitive status visibility ## Overview The Walfront SZC23-NO-AL Current Sensing Switch offers adjustable AC current detection from 0.2 to 30 amps with millisecond switching speed. Featuring a self-powered design and LED status indicator, it ensures reliable, real-time monitoring without external power. Its durable ABS casing and 2000V isolation rating provide robust safety, making it ideal for industrial AC motor overload protection and automatic control systems. ## Description Current Sensing Switch, Normally Open Current Sensing Switch Adjustable AC 0.2-30A SZC23-NO-AL-: desertcart.com: Industrial & Scientific ## Features - Self-powered, no external power supply required.Action current 0.2-30A AC, adjustable with a potentiometer. - LED indicator can conveniently and intuitively indicate the working status of the switch.Hysteresis is less than 1% and can be used under strong magnetic conditions. - The switch has no limit on the number of opening and closing, and the speed reaches the ms level.The outer casing is made of self-extinguishing material ABS. - High-power MOS tube contactless electronic switch.Straight-through structure design, isolation withstand voltage up to 2000V. - Suitable for AC current measurement and monitoring, AC motor overload , electronic switch of automatic control system and so on. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07P87TG8F | | Best Sellers Rank | #319,775 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #30 in Current Monitoring Relays | | Brand Name | Walfront | | Circuit Type | 1-way | | Connectivity Protocol | X-10 | | Connector Type | Screw Terminals | | Contact Material | Plastic | | Contact Type | Normally Closed, Normally Open | | Control Method | Touch | | Current Rating | 30 Amps | | Customer Reviews | 4.4 4.4 out of 5 stars (72) | | International Protection Rating | IP30 | | Item Dimensions | 2.56 x 1.97 x 0.98 inches | | Item Weight | 0.06 Kilograms | | Manufacturer | Walfront | | Material Type | Plastic | | Mounting Type | Through Hole Mount | | Number of Items | 1 | | Number of Positions | 2 | | Operating Voltage | 240 Volts | | Operation Mode | Automatic | | Part Number | Walfront8y7cbug59d | | Specification Met | Ms | | Switch Type | Limit Switch, Temperature Switch | | Terminal | Screw | | UPC | 724942218735 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 60 Degrees Celsius | | Wattage | 120 watts | ## Product Details - **Brand:** Walfront - **Connector Type:** Screw Terminals - **Contact Type:** Normally Closed, Normally Open - **Current Rating:** 30 Amps - **Item dimensions L x W x H:** 2.56 x 1.97 x 0.98 inches - **Material:** Plastic - **Operating Voltage:** 240 Volts - **Operation Mode:** Automatic - **Switch Type:** Limit Switch, Temperature Switch - **Terminal:** Screw ## Images ![Current Sensing Switch, Normally Open Current Sensing Switch Adjustable AC 0.2-30A SZC23-NO-AL- - Image 1](https://m.media-amazon.com/images/I/61aIiHukVhL.jpg) ## Questions & Answers **Q: Can this be used to shut off a 12 volt DC linear actuator if it gets jammed?** A: No. A CT cannot be used to measure DC amps. **Q: Will this work with 24v on the switch leg with 120v 10 amp motor in the CT?** A: Your question doesn't include the main ingredient. As far as I know, it's the current through the switch that will cause failure. I avoided the problem by using a relay to handle the load. I hope this helps. **Q: Can i switch a 20 watt ac (led or cfl) on/off using the"k1,k2" contacts? it works, but for how long- design for it? k1,k2= solid state relay/mosfet.** A: The k1, k2 contacts aren't rated for much of a load. To be on the safe side, I used the contacts to power a small relay and let the relay handle the load. **Q: I concerned about the switch toggling off-on-off repeating. does this unit have a switch on/off delay, I'd like about 5 minutes of delay** A: It doesn't have a lockout or a time delay, it's on or off. I haven't had a problem with it kicking on and off. The application I'm using it for is a pump on a sand filter reading that amps to know if and when it looses its prime, to turn a light on to get people's attention. ## Frequently Bought Together - Current Sensing Switch, Normally Open Current Sensing Switch Adjustable AC 0.2-30A SZC23-NO-AL-CH - Tnisesm 2PCS Power Relay AC120V Coil, 30A SPDT(1NO 1NC) 120 VAC with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay NT90-AC120V-10X - Current Sensing Switch, Normally Open Current Sensing Relay Adjustable AC 0.2A -30A (SZC23 No AL-CH Model) --- ## 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.com.sa/products/129793815-current-sensing-switch-normally-open-current-sensing-switch-adjustable-ac](https://www.desertcart.com.sa/products/129793815-current-sensing-switch-normally-open-current-sensing-switch-adjustable-ac) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-08-31*