Egis 2230-02 2-Circuit Terminal Block 30A

When you need a clean, reliable place to land a couple of circuits, the Egis Mobile Electric 2230-02 does the job without fuss. It's a 2-circuit terminal block rated for 30 amps and 240 volts, and it works equally well on AC or DC systems. Two circuits is the sweet spot for a lot of smaller distribution points on a boat, think a pair of accessory runs off a single feed, a bilge and a float switch, or a tidy junction behind the dash where you just need two solid, insulated connections.

What makes a terminal block worth buying for marine use isn't the plastic, it's the metal and how it holds up. This one uses tin-plated copper connectors. Copper gives you the conductivity you want so you're not losing voltage across the joint, and the tin plating is the part that matters out on the water. Bare copper corrodes fast in salt air and goes green and crumbly at the connection. Tinning seals the copper so the contact stays bright and the resistance stays low for years, not months. If you've ever chased a flaky accessory circuit down to a corroded terminal, you already know why this matters.

The body is phenolic, which is the right call for a power connection. Phenolic is a dense, heat-resistant insulating material that won't soften or deform when a terminal warms up under load. A 30-amp circuit can push real current, and you don't want a housing that melts or sags around the screws. Phenolic holds its shape and its insulating properties even when things get warm, and it's non-conductive so your two circuits stay isolated from each other and from anything they're mounted against. The finish is black, so it disappears into most behind-the-dash and under-console installs.

Wiring it up is straightforward. Each circuit lands under a screw terminal, so you strip your conductor, slip it under the clamp (or land a ring terminal on it), and snug the screw down. No special crimpers, no proprietary connectors, just a screwdriver and a few minutes. Screw terminals also make this block easy to service later. If you need to add, move, or re-land a wire down the road, you back out the screw and you're done.

The block measures 2.1 inches long by 1.3 inches wide, so it's a compact footprint that tucks into tight spaces. That size is one of the main reasons to reach for the 2-circuit version instead of a larger block. If you only need two circuits, there's no sense giving up panel real estate for terminals you'll never use. Mount it on a bulkhead, inside an electrical box, or on a backing plate behind the helm, and you've got a clean distribution point that looks like it belongs there.

Egis Mobile Electric has been building electrical gear for marine, fleet, and specialty vehicle applications for over 25 years, and their focus is on safe, dependable power distribution and battery protection. That background shows up in parts like this one. It's not a generic hardware-store terminal strip, it's a connector designed for the kind of vibration, moisture, and temperature swings a boat's electrical system actually sees. Rated for both AC and DC up to 240 volts, it's flexible enough for shore-power accessory circuits as well as your standard 12-volt and 24-volt DC runs.

If you're building out a small junction, replacing a corroded old block, or just want a dependable two-circuit landing point you won't have to think about again, this is a solid, honest piece of gear. It's the kind of part you install once and forget about, which is exactly what you want from a connection buried behind the dash where you can't easily get to it. Buy it once, wire it right, and move on to the next job.