# Miniature circuit breaker Siemens 5SY41166 Type B 16 A 230/400 V 10 kA 18 mm

**URL:** https://aio.lv/en/product--siemens-5sy4116-6--1511945
**Data updated:** 2026-03-11 11:42 (EET)
**Category:** Power Sockets
**Manufacturer:** Siemens
**Manufacturer code:** 5SY4116-6
**EAN:** 4001869181219
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 9.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-5sy4116-6--1511945

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Siemens 5SY41166 is a miniature circuit breaker (MCB) Type B with rated current 16 A and rated voltage 230/400 V. It provides a breaking capacity of 10,000 A and compact dimensions (18 mm width, 76 mm depth, 90 mm height), suitable for DIN-rail electrical distribution in residential and light-commercial installations.

## Long description

Siemens 5SY41166 is a miniature circuit breaker (MCB) Type B designed for overcurrent protection in DIN-rail distribution boards. Rated for 16 A and compatible with 230/400 V systems, this compact device combines reliable thermal-magnetic tripping characteristics with a 10 kA breaking capacity to interrupt short-circuit currents safely. Its narrow 18 mm width and standardized mounting make it suitable for tight panel layouts in residential and light-commercial electrical installations.
Advantages
The Type B tripping curve provides dependable protection for circuits with primarily resistive loads, reacting quickly to moderate fault currents while avoiding nuisance trips from small transient inrushes. The device’s 10 kA short-circuit breaking capacity meets common safety requirements for household and small-business distribution systems. A compact footprint reduces space requirements in consumer units and distribution boards, and the DIN-rail mounting offers straightforward installation and replacement.
Suitable for
Protection of lighting and socket circuits in homes and apartments
Small commercial premises with mainly resistive or lightly inductive loads
Distribution boards with limited module space requiring narrow-width devices
Circuit protection where a 16 A rated current is specified
Key specifications
Type: B thermal-magnetic miniature circuit breaker
Rated current: 16 A
Rated operational voltage: 230/400 V AC
Breaking capacity: 10,000 A (10 kA)
Width: 18 mm (single module)
Depth: 76 mm
Height: 90 mm
DIN-rail mounting
How to use
Install the MCB on a standard DIN rail inside the distribution board, ensuring power is isolated before work begins. Connect the line and load conductors to the appropriate terminals, tighten terminal screws to the specified torque, and verify correct phase orientation where applicable. After installation, restore power and test the circuit breaker by switching it on and off and checking that connected circuits receive power. In the event of a trip, isolate the circuit, identify and resolve the fault before resetting the device.
Usage recommendations
Use this Type B, 16 A MCB for circuits supplying general-purpose outlets and lighting where moderate inrush currents are expected. Do not use it for circuits with large motor loads or heavy inductive equipment that require Type C or D characteristics. Follow local electrical codes and manufacturer torque/specification guidance during installation and periodic inspection.

## Specifications

| Feature | Value |
|---|---|
| Type | Type B |
| Input current | 16 |
| Breaking capacity | 10000 A |
| Circuit breaker type | Miniature circuit breaker |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.13 kg |
| Height | 90 mm |
| Width | 18 mm |
| Depth | 76 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package depth | 93 mm |
| Package height | 83 mm |
| Package width | 21 mm |

### Design

| Feature | Value |
|---|---|
| Product colour | Grey |
| International Protection (IP) code | IP20 |

### Power

| Feature | Value |
|---|---|
| Input voltage | 230/400 |

### Features

| Feature | Value |
|---|---|
| Number of poles | 1 |

## FAQ

### How much does the Miniature circuit breaker Siemens 5SY41166 Type B cost, and is it available for purchase?

The price is 10.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Siemens products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Siemens service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Miniature circuit breaker Siemens 5SY41166 Type B?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/1511945/57988273_large.webp