Double Power Automatic Changeover Switch Model GCQ263/2 Overview The GCQ263/2 automatic changeover switch provides reliable transfer between two power sources to keep critical loads powered. It combines automatic and manual operation, fast switching, clear indicators, and durable construction to suit residential and commercial installations. Key benefits Ensures continuous power: Automatically transfers load from one power supply to the other when a supply fails, maintaining operation of connected circuits. Fast switching: Transfer between main and standby power in up to 2 seconds to minimize downtime. Flexible control: Onetouch red toggle switch selects automatic or manual mode to meet different operating needs. Clear status indication: Multiple indicator lights and a signallight terminal make monitoring simple and integration into distribution boxes straightforward. Safe and efficient wiring: Mouthtype wiring terminals reduce the chance of accidental contact and speed up installation. Robust construction: Resin body and thickened steel base provide strength, corrosion resistance, impact resistance, and long service life. Stable, quiet operation: Pure copper motor and protective cover reduce noise and support reliable longterm operation. Typical applications Elevator power transfer to maintain safe operation during power shifts. Surveillance and fire protection systems that require uninterrupted power. Commercial and industrial sites such as office buildings, ports, terminals, banks, and mechanical plants. Residential power management and other twosource power setups. Key specifications Model: GCQ263/2 Color: Blue Materials: Resin body and steel base Conversion mode: Selfcast Display function: Indicator light display Installation dimension: 128 mm x 122 mm (5.0 x 4.8 in) Mounting type: Wall mount Circuit type: 2way Number of positions: 2 Rated voltage: AC 400V Working voltage: AC 220V, 50/60 Hz Rated current: 63 A Conversion time: up to 2 seconds Operation method: Automatic and manual ATS level: CB Level Use level: AC33iB International protection rating: IP63 Hole size: M6 Product size: 157 mm x 133 mm x 115 mm (6.18 x 5.24 x 4.53 in) Package size: 175 mm x 150 mm x 125 mm (6.9 x 5.9 x 4.9 in) Gross weight: 1.45 kg (3.2 lbs) Unit count: 1 What is included 1 x Double Power Automatic Changeover Switch (GCQ263/2) 1 x English manual Installation and use notes Read the user manual carefully before installation and operation and follow the listed safety precautions. Allow for slight color differences due to photography and a possible 13 cm variance from manual measurement. This changeover switch is designed for clear operation, fast transfer performance, and robust durability in a wide range of electrical environments.