Blue Sea Systems Terminal Block Jumper for 20A Terminal Blocks

The Blue Sea Systems Terminal Block Jumper lets adjacent positions on a 20A Terminal Block share a common circuit instead of staying fully isolated. It snaps across neighboring terminal pairs on any 2400 Series terminal block, turning what starts as independent connections into a shared bus wherever that's what the wiring calls for on a given project.

Key features

• Fits 20A terminal blocks (2400 Series)
• Nickel-plated brass construction matches the terminal block's own bus material
• Sold in a 5-piece retail pack, enough for most terminal block banks

Terminal blocks in this family ship with every position electrically independent by design, which is ideal when circuits genuinely need to stay separate but adds a step when you actually want two or three positions to share one source. This jumper handles that in seconds, without needing a separate jumper wire and two extra ring terminals to accomplish the same result, which keeps the finished wiring noticeably tidier.

Compatible with all 20A terminal blocks in this series: 2402, 2404, 2406, 2408, 2410. Keep a few spares on hand when wiring a new terminal block bank, since it's common to discover mid-installation that a couple of positions should share a feed after all — swapping in a jumper is far quicker than re-running a wire.

These jumpers are inexpensive enough to keep a small stock of alongside spare terminal blocks in a service kit, since a missing jumper can otherwise hold up an otherwise-finished installation until one is sourced from a supplier days later.