Anderson Powerpole

[citation needed] Larger Powerpole connectors (the SB/Multipole series) with two or three contacts in one molded housing are commonly used in various industrial settings, including as a battery connection for some uninterruptible power supplies (UPS), removable vehicle winches, many electric forklifts, and other electric vehicles.

[2] Some of Anderson's earlier patents have expired, thus other manufacturers have released plug-compatible connectors, such as "AMP Power Series" by Tyco / TE Connectivity, Sermos, and Lightspeed.

The Anderson Powerpole connector is more expensive than the older de facto standards of the two-wire trailer plug and the Molex connector, but provides a more reliable electrical connection (both mechanically and electrically), and is easier to adapt to a wider range of wire gauges.

[23] Another advantage over the older trailer or Molex connectors is the Powerpole's superior ratings to withstand 100,000 no-load insertions and 250 hot-plugs at full load.

For use in amateur radio, the community has adopted a standard color code, polarity, and specific physical arrangement for assembling pairs of Powerpole connectors.

When viewed from the contact side, a mnemonic for remembering the arrangement is: "Red [on] Right — Tongue [on] Top" (note the first letter alliteration).

In model railways, the NTRAK Modular Railroading Society adopted the Powerpole PP30 connector as a recommend practice in 2005. and as a standard in 2011.

Some buildings including data centers are increasingly designed for 380 V DC power distribution, as a way of improving electrical efficiency.

[25] DC power distribution has resulted in the need to standardize a Low Voltage (LV) connector with an integral ground conductor, which is safe for use by untrained personnel.

Cutaway view of housing (side view)
Different keying for each colour in the SB50 series. Note that black and grey are keyed the same making them interchangeable.