50 amp 4 pole Miniature Circuit Breaker

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$93.85

4 pole 50 amp miniature circuit breaker (MCB) for sale at an economical price. This mini circuit breaker working at a 50-60Hz rated frequency, is a compact and essential protective device widely used in electrical systems to safeguard circuits from damage caused by overcurrent, short circuits, and overload conditions.

SKU: ATO-MCB-4P50

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Overview
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4 pole 50 amp miniature circuit breaker (MCB) operates at a rated frequency of 50-60Hz, which is commonly used in electrical systems to protect circuits from overcurrent, short circuits, and overload conditions, ensuring reliable performance and safety.

4 Pole MCB Breaker Features

Rapid arc extinguishing system: This 4P mini circuit breaker eliminates line danger, can sense even small currents, and provides sensitive protection.
Thermosetting shell: 4 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-BY6-63-4P-50A
Number of Poles	4P
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

4 Pole MCB Breaker Dimensions (Unit: mm)

4 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: How do miniature circuit breakers protect circuits?

Miniature circuit breakers (MCBs) protect electrical circuits by automatically interrupting the current flow when an overload or short circuit occurs. They use two primary mechanisms: a thermal trip and a magnetic trip.

The thermal trip responds to prolonged overloads. Inside the mini circuit breaker, a bimetallic strip heats up as the current increases. If the current exceeds a safe limit for an extended period, the strip bends and triggers the trip mechanism, disconnecting the circuit to prevent overheating and potential fire hazards.

The magnetic trip reacts to sudden surges, like those from short circuits. It uses an electromagnet that generates a magnetic field proportional to the current. If the current spikes abruptly, the magnetic force pulls a lever to trip the breaker instantly, stopping the flow to prevent equipment damage.

MCBs are resettable and provide reliable, quick protection, making them essential for safeguarding electrical systems in homes, industries, and commercial buildings.

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.

Isolator vs Circuit Breaker

Although isolators and circuit breakers have similar functions in a circuit, they are two separate entities. This video explains you the difference between the two devices in terms of working, features, operation, affordability, etc. You can choose between them based on your specific requirements.

Essential Electronic Components in Electrical Systems

Welcome back to the ATO Channel, you go-to source for electrical and industrial automation insights.

Relays vs Circuit Breakers: What’s the Difference

In this video, we've described the difference between a relay and a circuit breaker as well as explaining their basic working and operation by means of animation. If you find this video helpful, please LIKE it and SHARE with your friends. Don't forget to check out the purchase links above if any featured items're of your interest.

Existing reviews of 50 amp 4 pole Miniature Circuit Breaker

Nice for the price.

I used this MCB as a breaker off of my battery solar bank. It is well made and easy to use. Works great for battery disconnect. Just what I needed and good price.

From: Pruitt | Date: 30/10/2022

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Good quality and great price.

I bought this 50 amp 4 pole MCB breaker to fix my heat press machine. Replaced the old one with this easily and my machine works well now. Well made an easy to use. I will buy more from ATO.com.

From: Mccurry | Date: 28/06/2022

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