CNC Electric YCQR 4 Pole 63A Automatic Transfer Switch with Under/Over Voltage Protection

Automatic Source Changeover with Voltage Protection

The CNC Electric YCQR 4 Pole 63A Automatic Transfer Switch combines main-to-backup source switching with under-voltage and over-voltage protection. It is an option for compatible distribution and backup panels where automatic source selection and voltage monitoring are required.

The front panel includes source indicators, a load-on indicator and a manual operating control, allowing the selected supply and load status to be checked at the panel.

Key Features

• 4-pole configuration
• 63A current rating
• Automatic transfer between compatible main and standby supplies
• Under-voltage and over-voltage protection
• Front-panel source and load-status indicators
• Manual operating control

Product Specifications

• Brand: CNC Electric
• Series: YCQR
• Type: Automatic Transfer Switch
• Poles: 4 Pole
• Current rating: 63A
• Voltage protection: Under-voltage and over-voltage

Installation and Selection

Confirm the exact supply configuration, voltage rating, protection thresholds, transfer delay and wiring arrangement from the manufacturer documentation before installation. Do not select solely by pole count; verify the terminal diagram and compatibility with the connected sources.

Installation must be carried out by a qualified electrician with appropriate cable sizing, protection and earthing. The switch transfers between available sources; it does not generate backup power or guarantee uninterrupted supply.