50 amp 3 pole Miniature Circuit Breaker

5 out of 5 based on 2 reviews | Write a review

$82.29

Economical price 50 amp 3 pole miniature circuit breaker (MCB) for sale, compliance with IEC standards, is a protective switch designed to ensure safety and reliability in electrical installations. This mini MCB provides reliable protection against overloads and short circuits, effectively preventing damage to electrical equipment and wiring.

SKU: ATO-MCB-3P50

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Delivery date: 6-12 days

Overview
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50 amp 3 pole miniature circuit breaker (MCB) is an electrical switch designed to safeguard circuits from overcurrent and short circuit damage. This mini circuit breaker offers short circuit, overload, and circuit interruption protection, working frequency of 50-60Hz.

3 Pole MCB Breaker Features

Rapid arc extinguishing system: This 3P mini circuit breaker eliminates line danger, can sense even small currents, and provides sensitive protection.
Thermosetting shell: 3 pole MCB breaker uses thermosetting plastic, which solidifies or has insoluble characteristics under heat or other conditions.
Sealed terminal: 50 amp miniature circuit breaker has a built-in sealed terminal, which is rust-proof and convenient, and meets certification standards.
Ergonomic handle: The handle is comfortable to operate, has high segmentation capacity, and is sensitive to action.

Technical Data

Model	ATO-BY6-63-3P-50A
Number of Poles	3P
Rated Frequency	50-60Hz
Frame Grade Current	63A
Rated Current(In)	50A
Rated Insulation Voltage	400V
Rated Impulse Withstand Voltage (Uimp)	4000KV
Rated Short-circuit Capacity(Inc)	3000-6000KA
Producible Leakage Protection Type	AC type
Electrical Characteristics	Short Circuit Protection, Overload Protection, Power Failure Protection
Electrical Life	10000
Mechanical Life	10000
Protection Level	IP20
Comply with the Standard	GB/T10963.1-2020 IEC60898-1

3 Pole MCB Breaker Dimensions (Unit: mm)

3 Pole MCB Breaker Wiring

How to Choose a Miniature Circuit Breaker for Home?

Rated Current	Copper Core Wire	Load Power	Applications
1~5A	＜1mm	≤1100W	Low-power Equipment
6A	≥1mm	≤1320W	Lighting
10A	≥1.5mm	≤2200W	Lighting
16A	≥2.5mm	≤3520W	Lighting, Sockets, 1~1.5 hp Air Conditioner
20A	≥2.5mm	≤4400W	Lighting, Sockets, 1~1.5 hp Air Conditioner
25A	≥4mm	≤5500W	Lighting, Sockets, 1~2.5 hp Air Conditioner
32A	≥6mm	≤7040W	Sockets, 3 hp Air Conditioner, 6 kW Water Heater
40A	≥10mm	≤8800W	8 kW Instant Water Heater, Main Power Switch
50A	≥10mm	≤11000W	Main Power Switch
63A	≥16mm	≤13200W	Main Power Switch

Tips: Why do you need a 50 amp 3 pole miniature circuit breaker?

A 50 amp 3 pole miniature circuit breaker (MCB) is essential for protecting three-phase electrical systems from overloads and short circuits. It’s commonly used in industrial and commercial applications where balanced power distribution is critical. With three poles, the MCB simultaneously disconnects all three phases, ensuring safety and preventing equipment damage during faults. The 50 amp rating makes it suitable for high-power machinery, HVAC systems, and large motors, providing reliable protection without frequent nuisance tripping. This type of micro circuit breaker also enhances system stability and helps prevent costly downtime by isolating faulty circuits efficiently. Its compact size saves panel space while meeting safety standards. Whether you’re managing industrial automation equipment or large-scale electrical installations, a 50 amp 3 pole mini circuit breaker is vital for safeguarding your equipment and ensuring smooth, uninterrupted operation.

Types of Circuit Breakers

In this video, we'll take a closer look at the meaning behind these abbreviations and explain the types of circuit breakers they represent. By understanding the different types of circuit breakers on the market, you can make an informed decision and choose the right type for your specific requirements, thereby enhancing the protection of your electrical infrastructure.

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Existing reviews of 50 amp 3 pole Miniature Circuit Breaker

This MCB works great.

I ordered this miniature circuit breaker because I wanted safe switch for occasional use inside a solar panel. The MCB is as described and shown including the short piece of DIN rail and two screws. For my purposes it works well but time will tell.

From: Marcus | Date: 28/10/2022

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High quality MCB.

I bought this 50 amp 3 pole miniature circuit breaker as a quick disconnect for my solar panels. It functions perfectly, works as designed. High quality MCB that deserves 5 stars.

From: Della | Date: 30/05/2022

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