---
title: "Hager Fi 40a 30ma 4 Polig — €127K/yr Amazon DE Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/de/baumarkt/hager-fi-40a-30ma-4-polig"
last_updated: "2026-08-08T00:58:39.754Z"
locale: en
meta:
description: "Niche score 39/100 · €127K/yr market · 40K searches/yr · €62.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · €127K/yr market · 40K searches/yr · €62.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Hager Fi 40a 30ma 4 Polig — €127K/yr Amazon DE Niche (2026) - Flapen"
---
# **hager fi 40a 30ma 4 polig**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 29Growth 26Conversion 60Competition 7Returns 95Price range 86Avg price 89Brand share 0Review moat 81Quality gap 19
**Returns**
**Great****1.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****€62.10**
avg listing price — sweet spot $15–$100
**Price range**
**Great****€33.51–€108.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****385.57**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****5.1%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Okay****€127K**
€127K/yr · 40K searches
**Growth**
**Okay****+0.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****92%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=de&signal=high_price "Avg price > $50")
According to Flapen's Amazon Germany niche tracking, hager fi 40a 30ma 4 polig is a €127K/yr Amazon Germany market (40K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **hager fi 40a 30ma 4 polig market data**
- **Units sold / yr**
- **2K–3K**
- avg 250–500/product
- **Revenue / yr**
- **€124K–€155K**
- units × avg price
- **Conversion rate**
- **5.1%**
- **Avg BSR**
- **#102**
- **Page quality**
- **0%**
- **Prime**
- **57%**
- **Sponsored**
- **71%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **79 months**
- **Avg seller age**
- **185 days**
## **Competition & brand share**
The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**2 **—flat
**Sellers**
**47**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**92%**
Top 20: 100%
**Open market**
**0%**
- Hager76% - GRENDA-HAMMER24%
## **Demand**
Weekly Amazon search volume, last 41 weeks — +0.9% search growth over the last 90 days.
900700Sep '25Nov '25Dec '25Feb '26Mar '26Apr '26Jun '26
[**Open Trend **](https://flapen.com/research/de/baumarkt/hager-fi-40a-30ma-4-polig/trend)
## **Top hager fi 40a 30ma 4 polig search terms**
- **hager fi 40a 30ma 4 polig**19K/yr-7.6%5.8% conv. - **hager fi**13K/yr+8.6%2.4% conv. - **hager cda440d**4K/yr+5.4%8.1% conv. - **cda440d**3K/yr+11.6%7.0% conv. [**All search terms **](https://flapen.com/research/de/baumarkt/hager-fi-40a-30ma-4-polig/search-terms)
## **Top hager fi 40a 30ma 4 polig products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%€19K30%€38K45%€57K60%€76K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Hager CDA440D Fehlerstromschutzschalter 40A 4-polig 4P 30mA Typ A 6kA FI-Schutzschalter (CDA 440D)**Hager**€33.51**4.8★1,441 rev](https://www.amazon.de/dp/B000UW8AD2) [2**Hager CDA440D Fehlerstromschutzschalter Typ A 40A 30mA 4-polig 3P+N FI-Schalter 6kA für DIN Hutschiene RCD Schutzschalter 230V 400V Schraubtechnik QuickConnect Personenschutz**GRENDA-HAMMER**€56.79**4.5★42 rev](https://www.amazon.de/dp/B0F3XZ1JYJ) [3**Hager FI-Schutzschalter CDS440D**Hager**€36.58**4.8★564 rev](https://www.amazon.de/dp/B0014DOP9O) [4**Hager tm: 1x fi cda440d 4 pin + 8x ls switch mbn116 1 sammelschiene set**Hager**€70.15**4.7★491 rev](https://www.amazon.de/dp/B072JGTTQN) [5**Fehlerstrom Schutzschalter Hager Typ A 40A 30mA 3P+N 6kA QuickConnect-Technik**GRENDA-HAMMER**€56.88**4.9★10 rev](https://www.amazon.de/dp/B0F3JWLWQL)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**grenda-hammer FI Schutzschalter Set Hager 40A 30mA 4-polig 3P+N mit 8x B16A Sicherungsautomat 6kA FI LS Paket für Unterverteilung Schaltschrank DIN Hutschiene inkl. Kammschiene**GRENDA-HAMMER**€108.21**29 rev11mo ago](https://www.amazon.de/dp/B0FLJR4Q1C) [**Hager CDA440D Fehlerstromschutzschalter Typ A 40A 30mA 4-polig 3P+N FI-Schalter 6kA für DIN Hutschiene RCD Schutzschalter 230V 400V Schraubtechnik QuickConnect Personenschutz**GRENDA-HAMMER**€56.79**42 rev1y ago](https://www.amazon.de/dp/B0F3XZ1JYJ) [**Fehlerstrom Schutzschalter Hager Typ A 40A 30mA 3P+N 6kA QuickConnect-Technik**GRENDA-HAMMER**€56.88**10 rev1y ago](https://www.amazon.de/dp/B0F3JWLWQL) [**Hager Set 1x FI CDA440D 40a 0 03 + 1x LS-Schalter 3-polig MBN316 + 5x LS-Schalter 1-polig MBN116 + 1x Phasenschiene 3-polig KDN363F**Hager**€72.59**122 rev5y ago](https://www.amazon.de/dp/B098DHG1NF) [**Hager tm: 1x fi cda440d 4 pin + 8x ls switch mbn116 1 sammelschiene set**Hager**€70.15**491 rev9y ago](https://www.amazon.de/dp/B072JGTTQN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Hager CDA440D Fehlerstromschutzschalter 40A 4-polig 4P 30mA Typ A 6kA FI-Schutzschalter (CDA 440D)**Hager**€33.51**4.8★**▲ 19%**](https://www.amazon.de/dp/B000UW8AD2) [**Hager FI-Schutzschalter CDS440D**Hager**€36.58**4.8★**▲ 16%**](https://www.amazon.de/dp/B0014DOP9O) [**Fehlerstrom Schutzschalter Hager Typ A 40A 30mA 3P+N 6kA QuickConnect-Technik**GRENDA-HAMMER**€56.88**4.9★**— 7%**](https://www.amazon.de/dp/B0F3JWLWQL) [**grenda-hammer FI Schutzschalter Set Hager 40A 30mA 4-polig 3P+N mit 8x B16A Sicherungsautomat 6kA FI LS Paket für Unterverteilung Schaltschrank DIN Hutschiene inkl. Kammschiene**GRENDA-HAMMER**€108.21**4.3★**▼ 13%**](https://www.amazon.de/dp/B0FLJR4Q1C) [**Hager tm: 1x fi cda440d 4 pin + 8x ls switch mbn116 1 sammelschiene set**Hager**€70.15**4.7★**▼ 16%**](https://www.amazon.de/dp/B072JGTTQN)
**~~View all trending →~~**
## **What buyers say about hager fi 40a 30ma 4 polig**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Qualität insgesamt**66%
*“Top Produkt”*
**Preis-Leistungs-Verhältnis**11%
*“für den Preis wirklich fair”*
**Materialqualität**4%
*“Alles fühlt sich solide an, wie man es von Hager gewohnt ist”*
**Effizienz**4%
*“Funktioniert einwandfrei”*
**Benutzerfreundlichkeit**4%
*“Einfache Handhabung sitzt perfekt auf der Hutschiene”*
**Lokal hergestellt**4%
**Design insgesamt**3%
*“Hochwertige Verarbeitung”*
**Montage/Installation**3%
*“Funktioniert zuverlässig – mit Hager Komponenten super einfach einzubauen”*
**Gesamtgröße**3%
*“Perfekt abgestimmt auf Hager Komponenten”*
### **What buyers complain about **
**Haltbarkeit**50%
*“Leider nur kurze Zeit gehalten”*
**Montage/Installation**25%
*“Fehlkonstruktion”*
**Design insgesamt**25%
*“Fehlkonstruktion”*
### **Top return reasons **
**Gesamtgröße**33%
**Funktionalität insgesamt**21%
**Defekt Material/Teile**20%
**Kompatibilität – insgesamt**8%
**Touch-/Tastensteuerung**6%
**Wartung und Reparatur**2%
**Konnektivität – insgesamt**2%
**Montage/Installation**2%
**Messung / Ablesegenauigkeit**2%
**Zertifizierungen**2%
## **Common questions**
- **Is hager fi 40a 30ma 4 polig profitable to sell on Amazon Germany?**
- The niche generates €127K/yr across 7 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +0.9%. Flapen's verdict: Skip it (39/100).
- **How competitive is the hager fi 40a 30ma 4 polig niche?**
- 2 brands and 47 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in hager fi 40a 30ma 4 polig?**
- Top complaints mined from reviews: Haltbarkeit, Montage/Installation, Design insgesamt. The return rate is 1.0%.
- **What does it cost to enter the hager fi 40a 30ma 4 polig niche?**
- Listings span €33.51–€108.21; the average listing price is €62.10 (sweet spot $15–$100). The average incumbent carries 386 reviews — the moat a new listing must climb.
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