JONASC 63A 2P Dual Power Automatic Transfer Switch 110V - Reliable

In this review the JONASC 63A 2P Dual Power Automatic Transfer Switch is assessed for homeowners and small commercial sites that need a dependable automatic changeover between two AC110V sources. The bottom line: it is a compact, practical unit that quickly switches load circuits in about 2s and combines automatic and manual control for straightforward operation. The reviewer found it well suited to generator, inverter or solar backup setups where reliable protection and simple installation are priorities.

Key Features

• Line Voltage: Designed for AC110V operation so it integrates cleanly with common 110V backup supplies.
• Wide Current Range: Available for line currents from 6A up to 63A to support small circuits through heavier branch loads.
• Automatic and Manual Control: The unit switches automatically on power fault but also offers a manual button for controlled transfer and testing.
• Protection Functions: Built-in protections against short circuit, overload, phase loss, and undervoltage help safeguard connected equipment.
• Fast Transfer Time: Conversion occurs in about 2s, minimising downtime when switching between primary and reserve power.
• Compact Installation: Small footprint with an installation dimension of 128mm by 122mm and M6 mounting holes for tidy panel mounting.

Who It's For

This transfer switch is aimed at homeowners, small businesses, and facilities managers who need an affordable and robust way to switch between a generator, inverter or another 110V source. It is particularly useful for office areas, common areas in public buildings, and residential circuits that must remain powered during outages.

Those who require three-phase automatic transfer, networked remote monitoring, or integrated metering should look elsewhere, as this single and dual power 2P unit focuses on straightforward, local changeover and protection rather than advanced telemetry.

Pros & Cons

Pros

• Reliable automatic switching with a roughly 2s conversion time keeps downtime short.
• Supports both automatic and manual operation for flexible testing and control.
• Multiple protections help prevent damage from overload, short circuit, phase loss, or undervoltage.
• Reasonable size and simple installation make it easy to fit into existing panels.

Cons

• Documentation quality was noted as a weakness by users, so installers should be comfortable with basic electrical wiring and testing.
• Not intended for complex multiphase or remotely monitored systems.

Specifications

Our Verdict

The JONASC 63A 2P Dual Power Automatic Transfer Switch is a practical, value-oriented option for users needing a reliable 110V changeover with built-in protection and both auto and manual controls. It delivers fast switching, a broad current range, and easy mounting, making it a good choice for residential backup circuits and small commercial applications where straightforward, local transfer is required.

Frequently Asked Questions

Can this switch handle both generator and inverter power?
Yes, it is designed to switch between two AC110V sources and is commonly used to transfer between generator and inverter or solar/inverter supplies.

How fast does the transfer occur?
The conversion time is about 2 seconds under normal conditions, minimising interruption to connected loads.

Is installation difficult?
Installation is straightforward for someone familiar with electrical panel work; the unit is compact and mounts to a 128mm x 122mm cutout with M6 holes, but note that the instruction quality may be limited.