50 Amp Breaker

CNC Electric delivers safe and reliable low-voltage electrical solutions across 130+ countries, supporting 30+ exclusive distributors and 200+ CNC stores worldwide.

Our commitment to localization and market expansion ensures tailored solutions for different regions, backed by strategic partnerships, dedicated service teams, and participation in leading industry exhibitions such as MEE, Elektro, Electric & Power, Canton Fair and etc.

50 Amp Circuit Breaker

The 50A Circuit Breaker series delivers versatile protection across residential, commercial, and industrial applications, encompassing key variants like MCB (Miniature Circuit Breaker), MCCB (Molded Case Circuit Breaker), and RCBO (Residual Current Circuit Breaker with Overcurrent Protection).

YCB7-63N MCB

1–63A | B, C, D | 6kA | IEC/EN 60898-1

YCB9-63 MCB

1–63A | 1-4P | B, C, D | 6kA | 230/400V

YCB7NLE-63 RCBO

6–63A | 1P+N/2P/3P/3P+N/4P | B/C/D trip curves | IEC/EN61009-1

YCB7LE-63Y RCBO

6–63A | 1P+N | B/C/D trip curves | AC/A leakage type

YCB9HL-63 RCBO

6–63A | A,AC | 6kA | EC/EN 61009-1

YCM1 MCCB

L/M-type (Icu) |land/marine | AC50Hz | ≤1600A | IEC60947-2

YCM3

AC 50/60Hz, ≤690V, 12.5-1600A | IEC 60947-2

YCB3-63 MCB

1–63A | B, C, D | 6kA | IEC/EN 60898-1

Why Choose

CNC 50A Circuit Breaker

Designed for AC 50/60Hz, 230V/400V electrical systems, the 50A circuit breaker provides reliable protection against overloads (sustained overcurrents) and short circuits (sudden power surges). It also enables safe circuit isolation, making it suitable for infrequent line switching in residential, commercial, and light industrial environments.

Pole Configurations: Available in 1P, 2P, 3P, or 4P options to match diverse circuit requirements.
Tripping Characteristics: Equipped with thermal-magnetic B/C/D release types, ensuring compatibility with resistive (B-type), mixed (C-type), or high-inrush (D-type) loads.
Rated Current: 50A (within a broader 1-80A range for flexibility).
Durability: Electrical life of 10,000 load-breaking cycles and mechanical life of 20,000 no-load operations for long-term performance.

Installation & Compatibility:

Mounts on standard 35mm DIN rails (EN 60715) via a fast-clip mechanism for easy setup.
Supports top/bottom wiring with cables or bus bars up to 35mm² (adjustable based on specific models).

Ideal for powering high-demand devices such as heavy-duty appliances, industrial machinery, or multiple connected systems where 50A capacity is required.

YCB7LE-63Y Residual Current Operated Circuit Breaker

Solution

We provide our customer with profitable growth by offering integrated comprehensive electrical solution.

Bulk Wholesale

Global supply chain support with competitive pricing for large quantity orders. Dedicated account managers and flexible delivery terms.

WhatsApp: +8618958711903 E-mail: marcom@cncele.com

OEM Partnership

Custom manufacturing solutions tailored to your brand requirements with strict quality control and confidential production.

Dealer Network

Join our global dealer program with exclusive territories, marketing support, and technical training resources.

FAQ for 50 Amp Breakers

Q1: What would a 50 amp breaker be used for?

A: A 50 amp breaker is designed for high-power applications, such as electric ranges, large air conditioners, welding machines, or heavy-duty industrial tools. It protects circuits from overloads and short circuits in residential, commercial, or light industrial settings.

Q2: 50 amp breaker wire size

A: Typically, 50 amp breakers require 6 AWG copper wires (or 4 AWG aluminum) for 240V systems. Wire size may vary based on voltage, wire material, and circuit length—always follow local electrical codes.

Q3: Is a 50 amp breaker 110 or 220?

A: 50 amp breakers are most commonly used in 220V (240V) systems for high-power devices. They can also be used in 110V (120V) circuits but are less common due to lower power demand in such setups.

Q4: Can you run 50 amps on a 30 amp breaker?

A: No. A 30 amp breaker is rated to handle up to 30 amps. Exceeding this (e.g., 50 amps) will cause it to trip immediately to prevent overheating, wiring damage, or fire.

Q5: How many amps will trip a 50 amp breaker?

A: Tripping current depends on the breaker’s type:

B-type (resistive loads): Trips at 3-5×50A (150-250A).
C-type (mixed loads): Trips at 5-10×50A (250-500A).
D-type (high-inrush loads): Trips at 10-20×50A (500-1000A).

Q6: What is the lifespan of a 50 amp breaker?

A: Most 50 amp breakers have an electrical life of 10,000 load-breaking cycles and a mechanical life of 20,000 no-load operations, ensuring long-term reliability.

Q7: How to install a 50 amp breaker?

A: Install on a standard 35mm DIN rail (EN 60715) using a fast-clip mechanism. Connect wires to top/bottom terminals with a screwdriver, tightening to 2N·m. Always disconnect power before installation.

Q8: What’s the difference between B/C/D tripping types in a 50A breaker?

B-type: For resistive loads (e.g., heaters) – trips at 3-5× rated current.
C-type: For mixed loads (e.g., motors) – trips at 5-10× rated current.
D-type: For high-inrush loads (e.g., transformers) – trips at 10-20× rated current.