--- product_id: 177096460 title: "3UB81234DW2 Solid State Overload Relay, ESP200 Catalog No. 48ATD3S00, 5.5 to 22A, Frame Size A1, 3-Phase, Class 5/10/20/30 Adjustable, Manual/Automatic Reset" brand: "siemens" price: "NT$13480" currency: TWD in_stock: true category: "Siemens" url: https://www.desertcart.tw/products/177096460-3ub81234dw2-solid-state-overload-relay-esp200-catalog-no-48atd3s00-5 store_origin: TW region: Taiwan --- # 5.5-22A adjustable current range Selectable Trip Classes 5/10/20/30 UL & CSA certified safety 3UB81234DW2 Solid State Overload Relay, ESP200 Catalog No. 48ATD3S00, 5.5 to 22A, Frame Size A1, 3-Phase, Class 5/10/20/30 Adjustable, Manual/Automatic Reset **Brand:** siemens **Price:** NT$13480 **Availability:** ✅ In Stock ## Summary > ⚙️ Power up your protection with smart, sleek, and safe overload control! ## Quick Answers - **What is this?** 3UB81234DW2 Solid State Overload Relay, ESP200 Catalog No. 48ATD3S00, 5.5 to 22A, Frame Size A1, 3-Phase, Class 5/10/20/30 Adjustable, Manual/Automatic Reset by siemens - **How much does it cost?** NT$13480 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/177096460-3ub81234dw2-solid-state-overload-relay-esp200-catalog-no-48atd3s00-5) ## Best For - siemens enthusiasts ## Why This Product - Trusted siemens brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heater-Free Design:** Solid state overload eliminates heaters, reducing heat buildup and cutting cooling costs. - • **User-Friendly Reset:** Visible and audible trip indicators with an accessible reset button for quick recovery. - • **Certified Reliability:** UL Listed and CSA Certified for trusted performance in demanding industrial environments. - • **Precision Current Control:** Fine-tune overload protection from 5.5 to 22 amps for ultimate equipment safety. - • **Customizable Trip Settings:** Easily switch between 4 trip classes via DIP switches to match your exact application needs. ## Overview The Siemens 3UB81234DW2 ESP200 Solid State Overload Relay offers adjustable current protection from 5.5 to 22 amps with selectable trip classes (5, 10, 20, 30) via DIP switches. Its heater-free solid state design minimizes heat and ventilation costs, while UL and CSA certifications ensure industrial-grade safety. Featuring a removable terminal block with touch-safe terminals and both manual and automatic reset modes, it’s engineered for versatile, reliable 3-phase motor protection. ## Description Siemens ESP200 Solid State Overloads. Designed for a wide variety of applications. The field selectable Trip Class 5, 10, 20 or 30 can easily be set by 2 DIP switches. This eliminates the guess factor of an application requirements and provides reduced inventory for multiple applications. The inherent benefits of the ESP200 ultimately results in cost savings for the user. ESP200 has a 4: 1 current adjustment range with a fine adjustment dial labeled in full load amps. The heater less overload minimizes the heat trapped in the enclosures, reduces cost for ventilation or cooling. Easily accessible Reset button, provides visible and audible indications to ensure the tripped overload is ready to re-start. ## Features - Siemens MLFB 3UB81234DW2 or Catalog No 48ATD3S00 - Trip Classes - 5, 10, 20, or 30 Selectable by DIP-switches - Solid State Electronic Overload - No Heaters Required - Removable Terminal Block with Touch safe Terminals - UL Listed, CSA Certified ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008FMDPQ6 | | Best Sellers Rank | #385,419 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #119 in Overload Relays | | Brand Name | SIEMENS | | Connector Type | Screw | | Contact Current Rating | 22 Amps | | Contact Material | Metal | | Contact Type | Normally Open | | Current Rating | 22 Amps | | Customer Reviews | 4.8 4.8 out of 5 stars (4) | | Global Trade Identification Number | 00662643897210 | | Included Components | Overload Relay | | Item Weight | 27.22 g | | Manufacturer | Siemens | | Maximum Switching Current | 22 Amps | | Model | 48ATD3S00 | | Mounting Type | Direct | | Number of Terminals | 2 | | Operation Mode | Automatic,Manual | | Part Number | 3UB81234DW2 | | Specification Met | CSA, UL | | UPC | 662643897210 | | Unit Count | 1.0 Count | ## Product Details - **Connector Type:** Screw - **Contact Material:** Metal - **Contact Type:** Normally Open - **Current Rating:** 22 Amps - **Mounting Type:** Direct ## Images ![3UB81234DW2 Solid State Overload Relay, ESP200 Catalog No. 48ATD3S00, 5.5 to 22A, Frame Size A1, 3-Phase, Class 5/10/20/30 Adjustable, Manual/Automatic Reset - Image 1](https://m.media-amazon.com/images/I/81JyHsGwdyL.jpg) ## Frequently Bought Together - Siemens 3UB81234DW2 Solid State Overload Relay, ESP200 Catalog No. 48ATD3S00, 5.5 to 22A, Frame Size A1, 3-Phase, Class 5/10/20/30 Adjustable, Manual/Automatic Reset - Siemens 3UB81234EW2 Solid State Overload Relay, ESP200 Catalog No. 48ATE3S00, 10 to 40A, Frame Size A1, 3-Phase, Class 5/10/20/30 Adjustable, Manual/Automatic Reset --- ## 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.tw/products/177096460-3ub81234dw2-solid-state-overload-relay-esp200-catalog-no-48atd3s00-5](https://www.desertcart.tw/products/177096460-3ub81234dw2-solid-state-overload-relay-esp200-catalog-no-48atd3s00-5) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-05-28*