When the power goes out, a portable generator only helps if you can safely send that electricity to the circuits your household depends on. That's where a manual transfer switch comes in: it lets you power selected circuits directly from the generator without backfeeding. Two manual transfer switches for backup power are the Reliance 306LRK 30Amp BackUp Power Manual Transfer Switch Kit PreWired 6-Circuit and the CONNECTICUT ELECTRIC EGS 10-7501G2 30A 10 CIRCUIT BACKUP POWER TRANSFER SWITCH. Both are manual, but they part ways on circuit capacity and what comes in the box.
Quick verdict
If you want a ready-to-install package with the cord and inlet box included, the Reliance 306LRK is the more convenient choice. If circuit capacity is your top priority, the Connecticut Electric EGS 10-7501G2 gives you more room to distribute generator power. It's listed as New - Open box, so weigh that against its larger circuit count.
At a glance
| Feature | Reliance 306LRK | Connecticut Electric EGS 10-7501G2 |
|---|---|---|
| Price | $149.99 | $149.95 |
| Rated Amperage | 30 A | 30 A |
| Type | Manual | Manual |
| Circuit count | 6 pre-wired circuits | 10 circuits |
| Condition | New | New - Open box |
Where each product wins
Reliance 306LRK wins for convenience. It's a pre-wired kit that includes a 10-foot power cord, an outdoor power inlet box, and wire connectors. That means fewer purchases to track down before installation.
Connecticut Electric EGS 10-7501G2 wins for capacity. With more circuits than the Reliance, it can support a wider range of loads. The description highlights compatibility with portable generators up to a NEMA L14-30 output, which matches the connection type used by many generators.
Product notes
Reliance 306LRK 30Amp BackUp Power Manual Transfer Switch Kit PreWired 6-Circuit

This switch is built around six pre-wired circuits, which keeps installation straightforward for a focused set of essentials like lighting, a refrigerator, and a furnace or well pump. The included 10-foot power cord, outdoor inlet box, and wire connectors make it a self-contained starter kit. The non-metallic drop-down cover protects the switches when they're not in use. The trade-off is that six circuits means you'll need to decide which loads matter most, and expanding later would require a larger switch. If your generator-backed essentials fit neatly into that number, this is the easier path.
CONNECTICUT ELECTRIC EGS 10-7501G2 30A 10 CIRCUIT BACKUP POWER TRANSFER SWITCH

With 10 circuits, this transfer switch gives you more room to spread backup power across additional rooms, outlets, and appliances. It's designed for portable generators with a NEMA L14-30 output, a common plug type for mid-size generators. The condition is listed as New - Open box, so you get the capacity advantage at a slightly lower price than the Reliance. That open-box status is the main limitation to keep in mind, though the switch itself remains a 10-circuit manual unit.
Final choice by use case
Choose the Reliance 306LRK when you want a complete, all-in-one kit and your essential circuits are covered. Choose the CONNECTICUT ELECTRIC EGS 10-7501G2 when you need more circuit capacity and an open-box unit is acceptable.