# ABB MS116-50 Miniature Circuit Breaker 3P 50A 690V

**URL:** https://aio.lv/en/product--abb-1sam-250-000-r1008--3231782
**Data updated:** 2026-05-18 02:54 (EEST)
**Category:** Power Sockets
**Manufacturer:** ABB
**Manufacturer code:** 1SAM 250 000 R1008
**EAN:** 4013614320316
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The ABB MS116-50 is a high-performance 3-pole miniature circuit breaker designed for reliable motor protection. It features a rated current of 50 A and an operating voltage of 690 V with a frequency range of 50-60 Hz. This compact device ensures efficient electrical circuit management and safety in industrial and commercial applications. Its robust design provides consistent performance for demanding electrical systems.

## Long description

The ABB MS116-50 is a high-performance 3-pole manual motor starter designed to provide reliable protection for electrical motors. This compact device serves as a manual motor protector, allowing for the efficient switching of motors while safeguarding them against short-circuits, overloads, and phase failures without the need for additional fuses. Engineered for industrial and commercial environments, it ensures consistent performance and safety in demanding electrical systems.
Advantages
This motor protection circuit breaker stands out due to its robust design and high operational reliability. It features a trip-free mechanism and built-in temperature compensation, which ensures accurate protection even under varying environmental conditions. The inclusion of a rotary handle with clear switch position indication allows for intuitive operation and maintenance. Furthermore, the device is highly versatile, supporting both three-phase and single-phase applications, and can be expanded with various accessories such as auxiliary contacts, signaling contacts, and undervoltage releases to meet specific system requirements.
Suitable for
Manual switching of electric motors
Protection against motor overload and short-circuits
Phase failure detection in industrial machinery
Three-phase and single-phase electrical installations
When it may not be suitable
This device is specifically designed for motor protection and may not be suitable for general-purpose distribution circuit protection where different trip characteristics are required. It should not be used in applications exceeding its rated operational voltage or current specifications.
Key specifications
Number of poles: 3
Rated operational current: 50 A
Rated operational voltage: 690 V
Frequency range: 50-60 Hz
Trip class: 10A
Device width: 45 mm
How to use
The device is designed for easy installation and operation. It should be mounted within a suitable electrical enclosure. Once installed, the motor can be manually switched on or off using the front-mounted rotary handle. In the event of a fault, the trip-free mechanism ensures the device disconnects the motor safely. Regular inspection of the switch position and terminal connections is recommended to ensure continued operational integrity.
What to consider before purchase
Verify that the rated current matches your motor requirements
Ensure the installation environment is compatible with the device dimensions
Check if additional accessories like signaling contacts or bus bars are needed for your specific setup
Confirm that the voltage levels of your system align with the device ratings
Usage recommendations
Always ensure that the installation is performed by a qualified electrician in accordance with local electrical codes and safety standards. Periodically test the trip function to ensure the protection mechanism remains fully operational.

## Specifications

| Feature | Value |
|---|---|
| Storage temperature (T-T) | -50 - 80 |
| Input current | 50 |
| Circuit breaker type | Miniature circuit breaker |

### Features

| Feature | Value |
|---|---|
| Operating temperature (T-T) | -25 - 70 |
| Number of poles | 3P |

### Design

| Feature | Value |
|---|---|
| Certification | REACH,RoHS |
| Product colour | Black, Green |

### Power

| Feature | Value |
|---|---|
| Input voltage | 690 |
| Input frequency | 50 - 60 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.265 kg |
| Height | 90 mm |
| Width | 45 mm |
| Depth | 85.6 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 280 g |
| Package depth | 95 mm |
| Package height | 50 mm |
| Package width | 92 mm |
| Quantity per pack | 1 pc(s) |

### Technical details

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS, REACH |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 ABB 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 ABB 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 ABB MS116-50 Miniature Circuit Breaker 3P?

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/3231782/47498931_large.webp