When a storm or a grid fault takes out your main power, you want the backup source to take over without you standing at the switch. With 63A automatic transfer switches, the choice usually comes down to two approaches: a four-pole changeover kit that bundles the switch and a manual, or a compact DIN-rail selector that lets you program how and when the transfer happens. Both handle a 63A load path, but they fit different panels and different control preferences.
Quick Verdict
If you want a complete generator changeover package with an indicator-light display and a four-pole switching path, choose the Dual Power Automatic Transfer Switch kit 63A 4P. If you prefer a DIN-rail-mounted unit with adjustable L1/L2 priority and transfer-delay settings for generator or inverter backup, choose the Elecbee 63A Dual Power Selector. The Elecbee unit also carries the lower listed price.
Price and Feature Comparison
| Product | Listed Price | Key Attributes | Best For |
|---|---|---|---|
| Dual Power Automatic Transfer Switch kit 63A 4P | $43.95 | Four-pole changeover, indicator-light display, around 2-second conversion, 198 x 122 mm M6-hole footprint | A self-contained generator changeover kit |
| Elecbee Automatic Transfer Switch, 63A Dual Power Selector | $29.99 | DIN-rail mount, L1/L2 priority, adjustable overcurrent and transfer delay, PA6 V-0 flame-retardant housing | Flexible backup or inverter switching |
Where Each Product Wins
The Dual Power 63A 4P kit wins when you want a four-pole changeover switch with a visual indicator and a complete kit. Its listed footprint is 198 mm by 122 mm with M6 holes, and it shows the active source on the display. The Elecbee selector wins on adjustability and installation. It mounts on a DIN rail, defaults to L1 priority, and lets you change overcurrent value, startup delay, transfer delay, and priority phase from the front panel. The price difference is also clear: the Elecbee is listed at $29.99 versus $43.95 for the 4P kit, a $13.96 gap.
Product Notes
Dual Power Automatic Transfer Switch Kit 63A 4P

This is the all-in-one route to a 63A generator changeover. The four-pole switching path and indicator-light display make it easy to see which source is active, and the listing includes a manual along with the switch, so the package is ready for installation planning. Its specifications list an operating frequency of 60Hz, a rated voltage up to AC240V, and a conversion time of around 2 seconds. Pick this kit for a straightforward, automatic changeover in a panel where a 198 x 122 mm footprint with M6 holes works. The trade-off is that this mounting approach is panel-based rather than DIN-rail; if your enclosure is rail-mounted, measure that footprint carefully before committing.
Elecbee 63A Automatic Transfer Switch

The Elecbee selector is the more configurable option. It rides on a DIN rail, prioritizes the L1 source by default, and gives you front-panel control of overcurrent value, startup delay, transfer delay, and L1/L2 priority. The housing is PA6 material with a V-0 flame retardant rating, which adds heat and corrosion resistance to the design. This unit is listed as new open-box, so you are getting a new selector, but not a sealed retail package. Use it when you want to fine-tune the transfer behavior in a rail-mounted enclosure for generator or inverter backup. The main thing to weigh is that open-box condition; inspect the switch and guide rail when it arrives to confirm nothing is out of place.
Final Choice by Use Case
For a 63A generator changeover in a panel that can accept M6 fixing holes, with the convenience of an indicator light and a bundled manual, the Dual Power Automatic Transfer Switch kit 63A 4P is the right choice. For a DIN-rail installation with adjustable priorities and delays, and a lower listed price, the Elecbee 63A Dual Power Selector is the better fit. If minimizing upfront cost is your main concern, the Elecbee unit wins. If a four-pole changeover kit with a visual status display is more important, the 4P kit is the one to pick.