CNC YCB7-63N C20 20A 2P 6kA AC Miniature Circuit Breaker

Important Product Classification

The supplied product is not a DC breaker. Its front label shows 400V~, 50/60Hz, C20 and IEC 60898-1. CNC Electric's official product page and instruction manual identify the YCB7-63N series as an AC miniature circuit breaker for 230/400V AC, 50/60Hz circuits.

It must not be advertised or installed as a DC breaker. A separately rated CNC DC MCB is required for DC/PV-side circuits.

Product Identification

Product Title

CNC YCB7-63N C20 20A 2P 6kA AC Miniature Circuit Breaker

Short Description

The CNC Electric YCB7-63N C20 is a 20A, two-pole AC miniature circuit breaker with C-curve thermal-magnetic tripping and a rated breaking capacity of 6kA. Designed for 50/60Hz AC final-distribution circuits, it provides overload, short-circuit and isolation functions in residential, commercial and industrial installations.

Long Description

The CNC YCB7-63N C20 2P MCB combines dependable AC circuit protection with a compact DIN-rail design. Its linked two-pole handle operates both poles together, while the front contact-status windows provide quick visual indication. The C-curve thermal-magnetic release is intended for compatible AC loads with moderate inrush current.

According to CNC Electric's official documentation, the YCB7-63N series is rated for 230/400V AC, 50/60Hz applications and offers overload, short-circuit and isolation functions. The supplied C20 unit is marked 400V AC and 6000A breaking capacity. Installation, cable selection and protection coordination must be completed by a qualified electrician in accordance with the official instruction manual and local electrical regulations.

Key Features

• 20A rated current

• Two-pole linked operation

• C-curve thermal-magnetic trip characteristic

• 6kA rated breaking capacity

• 230/400V AC series rating; supplied unit marked 400V AC

• 50/60Hz rated frequency

• Overload, short-circuit and isolation functions

• Front contact-status indicator windows

• Cable or pin-type busbar terminal compatibility

• 35mm DIN-rail mounting

• IP20 protection degree

• IEC/EN 60898-1 compliance

Technical Specifications

Applications

• Residential AC distribution boards

• Commercial electrical panels

• Industrial AC control and distribution circuits

• High-rise building final distribution

• Lighting circuits within the coordinated rating

• Socket and general-purpose AC circuits where C-curve protection is appropriate

• AC-side protection in solar installations when selected by a qualified system designer

This breaker is not verified for PV-string, battery or other DC-side circuits.

Box Contents

Official manufacturer package contents for this exact sales unit: Not Verified.

The supplied marketplace image depicts a breaker, a short DIN-rail section and two screws, but CNC Electric's official packaging documentation does not confirm that these accessories are included with every unit.

Protection Features

• Thermal overload protection

• Magnetic short-circuit protection

• Manual circuit isolation

• Linked two-pole switching

• 6kA rated short-circuit breaking capacity

• Contact-position indication windows

Residual-current, surge-protection, arc-fault and DC interruption functions are not verified for this model.

Certifications and Standards

Warranty

CNC Electric's official warranty policy states 24 months from the date of manufacture for other low-voltage apparatus. The warranty period may be changed by the signed customer contract. Warranty claims are handled through CNC customer service, authorized service centres or local dealers and remain subject to the official policy and exclusions.