CNC YCB7-63 C63 63A 2-Pole 230/400V 6kA AC Miniature Circuit Breaker

Product Identification

The supplied image matches CNC Electric's official YCB7-63 MCB series. Its front label shows C63, 2P, 230/400V~, 6000A, GB/T 10963.1, IEC 60898-1 and CCC markings.

Short Description

The CNC YCB7-63 C63 is a 63A, 2-pole, C-curve AC miniature circuit breaker with 6kA rated short-circuit capacity. It provides overload and short-circuit protection in compatible 230/400V AC distribution systems and features a linked double-pole handle, contact-status windows and 35mm DIN-rail mounting.

Long Description

The CNC Electric YCB7-63 C63 2P MCB delivers compact protection for compatible low-voltage AC circuits. CNC officially rates the YCB7-63 series for 230/400V AC, 50/60Hz operation with rated currents up to 63A and B, C or D instantaneous-release characteristics. This exact supplied unit is marked C63 and 6000A.

The two-pole design uses a mechanically linked red operating handle so both poles operate together. Front indication windows provide visible contact status, while CNC's terminal double-protection design, all-copper current carrier, magnetic-blow arc-extinguishing device and side ventilation grooves support reliable installation and operation.

The breaker mounts on a 35mm DIN rail using a fast-clip device and accepts top or bottom connections. Final selection and installation must be completed by a qualified electrician after checking the system voltage, prospective fault current, conductor size, enclosure and local electrical regulations.

Key Features

• 63A rated current

• Two-pole mechanically linked operation

• C-curve instantaneous release, 5–10 × In

• 6kA rated short-circuit capacity

• Overload protection

• Short-circuit protection

• 230/400V AC, 50/60Hz operation

• IEC/EN 60898-1 compliance

• Contact-status indication windows

• Terminal double-protection design

• Magnetic-blow arc-extinguishing device

• 35mm DIN-rail mounting with top or bottom connection

Technical Specifications

Applications

• Residential AC distribution boards

• Commercial and non-residential buildings

• Industrial distribution circuits

• Energy-industry and infrastructure installations

• Branch-circuit overload and short-circuit protection

• Two-pole AC circuit control

• AC-side protection in solar and hybrid installations

Important: This is an AC MCB. Do not install it in a DC circuit. Installation, conductor sizing and protective coordination must be completed by a qualified electrician.

Box Contents

• 1 × CNC Electric YCB7-63 C63 63A 2P AC MCB

• Printed manual or certificate: Not Verified

• DIN rail: Not Included / Not Verified

• Cables, lugs and enclosure: Not Included / Not Verified

Protection Features

• Thermal overload protection

• Magnetic short-circuit protection

• 6kA Icn and Ics short-circuit capacity

• Mechanically linked two-pole operation

• Contact-status indication windows

• Terminal double protection

• High flame-retardant, temperature-resistant and impact-resistant enclosure design

• Magnetic-blow arc-extinguishing device

• IP20 enclosure protection

Not specified for this MCB: residual-current/earth-leakage protection, surge protection, arc-fault protection, automatic transfer or over/under-voltage protection.

Certifications

Warranty

Official warranty duration and Pakistan claim procedure for this exact YCB7-63 variant: Not Verified.