---
product_id: 392971946
title: "CDA440D FI Switch 40A 30mA A Type 4-Pin"
brand: "hager"
price: "€ 88.70"
currency: EUR
in_stock: true
category: "Hager"
url: https://www.desertcart.es/products/392971946-cda440d-fi-switch-40a-30ma-a-type-4-pin
store_origin: ES
region: Spain
---

# 40A high current capacity 500V voltage rating 30mA sensitive A-type protection CDA440D FI Switch 40A 30mA A Type 4-Pin

**Brand:** hager
**Price:** € 88.70
**Availability:** ✅ In Stock

## Summary

> 🛡️ Stay powered, stay protected — the smart switch for the savvy professional

## Quick Answers

- **What is this?** CDA440D FI Switch 40A 30mA A Type 4-Pin by hager
- **How much does it cost?** € 88.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/392971946-cda440d-fi-switch-40a-30ma-a-type-4-pin)

## Best For

- hager enthusiasts

## Why This Product

- Trusted hager brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High Voltage Ready:** Supports up to 500V for versatile commercial & personal use
- • **Power-Packed 40A Capacity:** Handles heavy-duty electrical loads with ease
- • **Trusted Hager Reliability:** Engineered by a global leader for peace of mind in every circuit
- • **Compact DIN Rail Mount Design:** Sleek 9.5x8x8 cm form factor fits seamlessly into modern setups
- • **Precision 30mA A-Type Sensitivity:** Detects even subtle leakage currents for enhanced safety

## Overview

The Hager CDA440D FI Switch is a compact, high-performance 40A circuit breaker with 30mA A-type residual current protection, designed for both commercial and personal electrical safety. Rated for 500 volts and DIN rail mountable, it offers reliable, precise leakage detection in a sleek, lightweight package.

## Description

Residual current circuit breaker 4-pin 6kA 40A 30mA type A residual current circuit breaker (FI) according to EN 61008-1, DIN EN 61008-2-1; VDE 0664 part 10 + 11, touch protection IP2x according to DIN VDE 0106 part 100. Suitable for subsequent installation of additional equipment (assembly without tools). Terminals with wire insertion protection, bi-connect terminals at the bottom, external blue test button. All products have VDE mark. Can be written directly on the device. Rated current: 40 A. Type of differential protection: A. Sensitivity: 30 mA. Number of poles: 4 P. Shock current resistance (impulse fault currents 8/20μs): 0.25 kA. Number of modules: 4 frequency: 50 Hz. Mounting type: DIN rail. Connection type: screw technology. Manufacturer: Hager or equivalent Item: CDA440D

## Features

- Hager CDA440D FI Circuit Breaker
- Circuit breaker
- Hager
- CDA440D CDA440D

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000UW8AD2 |
| Best Sellers Rank | #11,818 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Miniature Circuit Breakers |
| Brand | Hager |
| Brand Name | Hager |
| Circuit Breaker Type | Standard |
| Circuit breaker type | Standard |
| Current Rating | 40 Amps |
| Current rating | 40 Amps |
| Global Trade Identification Number | 03250611610076 |
| Included Components | NO |
| Item Dimensions D x W x H | 9.5D x 8W x 8H centimeters |
| Item Highlight | DIN rail mounting, 500 V rated voltage, reliable cable protection, screw terminal connection |
| Item Type Name | FI circuit breaker A 4p 400V 40A |
| Item Weight | 200 Grams |
| Manufacturer | Hager |
| Model | CDA440D |
| Mounting Type | DIN Rail Mount |
| Mounting type | DIN Rail Mount |
| Number of Items | 1000 |
| Number of Poles | 4 |
| Number of poles | 4 |
| Part Number | CDA440D |
| Product dimensions | 9.5D x 8W x 8H centimeters |
| Unit Count | 1.0 Count |
| Voltage | 500 Volts |

## Product Details

- **Brand:** Hager
- **Current rating:** 40 Amps
- **Product dimensions:** 9.5D x 8W x 8H centimeters
- **Circuit breaker type:** Standard
- **Mounting type:** DIN Rail Mount

## Images

![CDA440D FI Switch 40A 30mA A Type 4-Pin - Image 1](https://m.media-amazon.com/images/I/61hz+qwtybL.jpg)

## Frequently Bought Together

- Hager cda440d RCD 4P 40 A 30 mA 6 kA TYPE A
- ABB S203-B20 Miniature Circuit Breaker, 3 Pole, Type B, 6/10kA Breaking Capacity, 20 Amp Current (2CDS253001R0205)

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**Shop now:** [https://www.desertcart.es/products/392971946-cda440d-fi-switch-40a-30ma-a-type-4-pin](https://www.desertcart.es/products/392971946-cda440d-fi-switch-40a-30ma-a-type-4-pin)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-10-31*