--- product_id: 117374968 title: "Acti9 Residual Current Circuit Breaker FI Switch 4P 40A" brand: "schneider electric" price: "S$89" currency: SGD in_stock: null reviews_count: 5 url: https://www.desertcart.sg/products/117374968-acti9-residual-current-circuit-breaker-fi-switch-4p-40a store_origin: SG region: Singapore --- # 40A rated current powerhouse 4-pole design for robust 4-pin systems 30mA sensitivity for ultimate protection Acti9 Residual Current Circuit Breaker FI Switch 4P 40A **Brand:** schneider electric **Price:** S$89 **Availability:** ❌ Out of Stock ## Summary > 🛡️ Stay protected, stay ahead — power safety redefined! ## Quick Answers - **What is this?** Acti9 Residual Current Circuit Breaker FI Switch 4P 40A by schneider electric - **How much does it cost?** S$89 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/117374968-acti9-residual-current-circuit-breaker-fi-switch-4p-40a) ## Best For - schneider electric enthusiasts ## Why This Product - Trusted schneider electric brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **4-Pole Configuration:** Seamlessly integrates with 4-pin power systems for enhanced stability. - • **Precision 30mA Sensitivity:** Detects even the smallest leakage currents to safeguard your home and office. - • **Powerful 40A Current Rating:** Handles high electrical loads with ease, perfect for demanding setups. - • **Certified European Safety Standard:** Meets EN 61008, ensuring top-tier protection and compliance. - • **Trusted Schneider Electric Quality:** Backed by a global leader in electrical components for unmatched reliability. ## Overview The Schneider Electric Residual Current Circuit Breaker Active 9 IID 4P 40A 30mA Type A (A9Z21440) is a high-performance safety device designed for 4-pin power systems. With a robust 40 Amp current rating and sensitive 30mA leakage detection, it ensures personal and fire protection while complying with the stringent EN 61008 European safety standard. Engineered by Schneider Electric, this DIN rail mount breaker combines reliability and precision for professional-grade electrical safety. ## Description Shop Schneider Electric Residual Current Circuit Breaker Active 9 IID 4P 40A 30MA Type A, A9Z21440. Free delivery on eligible orders of £20 or more. Review: Int. Aut. Trifase - Ottimo prodotto Review: + ## Features - Type A circuit breaker with a rated current of 40 A - Sensitivity of 30mA to ensure personal and fire protection - Suitable for use in 4 pin power systems - Meets the European standard EN 61008 and thus offers a high level of safety - High quality product from Schneider Electric, a renowned manufacturer of electrical components ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DE3XVEM | | Best Sellers Rank | 539,748 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,237 in Circuit Breakers | | Brand | Schneider Electric | | Circuit Breaker Type | Standard | | Circuit breaker type | Standard | | Current Rating | 40 Amps | | Current rating | 40 Amps | | Customer Reviews | 4.7 out of 5 stars 1,832 Reviews | | Global Trade Identification Number | 03606480443206 | | Included Components | Residual current circuit breaker FI circuit breaker ACTI9 | | Item Dimensions D x W x H | 5.4D x 8.2W x 9.5H centimetres | | Item Type Name | Schneider Electric A9Z21440 A9Z21440 FI Circuit Breaker A 40A 0.03A 415V | | Item Weight | 0.37 Kilograms | | Manufacturer | Schneider Electric | | Manufacturer Part Number | A9Z21440 | | Model Number | A9Z21440 | | Mounting Type | DIN Rail Mount | | Mounting type | DIN Rail Mount | | Number of Poles | 4 | | Number of poles | 4 | | Product dimensions | 5.4D x 8.2W x 9.5H centimetres | | Unit Count | 1.0 count | | Voltage | 500 Volts | ## Product Details - **Brand:** Schneider Electric - **Circuit breaker type:** Standard - **Current rating:** 40 Amps - **Mounting type:** DIN Rail Mount - **Product dimensions:** 5.4D x 8.2W x 9.5H centimetres ## Images ![Acti9 Residual Current Circuit Breaker FI Switch 4P 40A - Image 1](https://m.media-amazon.com/images/I/61rm2nb-TBL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Int. Aut. Trifase *by C***N on 17 October 2025* Ottimo prodotto ### ⭐⭐⭐⭐⭐ + *by J***I on 8 January 2026* ### ⭐⭐⭐⭐⭐ Leitungsschutzschalter *by T***L on 7 December 2025* Guter Artikel ## Frequently Bought Together - Schneider Electric A9Z21440 FI Circuit Breaker A 40A 0.03A 415V, 40 amps, 4 Polig - Schneider Electric FI LS RESI9 1P + N 16A B 30MA Type A 6KA, R9D01616 --- ## 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.sg/products/117374968-acti9-residual-current-circuit-breaker-fi-switch-4p-40a](https://www.desertcart.sg/products/117374968-acti9-residual-current-circuit-breaker-fi-switch-4p-40a) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-05-17*