L21-30 Stringer Box

This custom L21-30 Stringer Box provides organized portable power distribution for entertainment, event, and temporary power applications.

First, it features one 30A 120/208V 4P/5W NEMA L21-30 Hubbell flanged inlet.

It also includes one 30A 120/208V 4P/5W NEMA L21-30 Hubbell flanged receptacle.

In addition, it includes three 20A 125V 2P/3W NEMA 5-20 industrial-grade color-coded duplex receptacles.

Meanwhile, three 20A hydraulic magnetic breakers provide over-current protection for the branch circuits.

The powder-coated enclosure also meets UL Specifications and complies with UL1640 Standards.

Finally, the durable black hammer powder coating and four rubber feet help protect the finish and keep the unit off the ground.

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This custom L21-30 Stringer Box works well when customers need compact branch power in one organized unit.

Because it combines a Hubbell flanged inlet, a Hubbell flanged receptacle, and three industrial grade duplex outputs, it delivers dependable in-and-thru power distribution.

In addition, the hydraulic magnetic breakers help protect branch circuits in entertainment, event, and temporary power environments.

Meanwhile, the powder coated enclosure adds durability for demanding field use.

Likewise, comparable stringer boxes from Motion Labs use a similar L21-30 in-and-thru duplex-output format, which supports this positioning.

L21-30 Stringer Box FAQ

  • What is this L21-30 Stringer Box used for?
    It provides compact portable branch power distribution for entertainment, event, and temporary power setups. That use fits the page specs and the way similar stringer boxes are marketed.
  • What type of input does this stringer box use?
    It uses one 30A 120/208V 4P/5W NEMA L21-30 Hubbell flanged inlet. Hubbell’s HBL2815 is a matching 30A 120/208V 4-pole 5-wire flanged inlet.
  • Does this unit include pass-thru power?
    Yes. It includes one 30A 120/208V 4P/5W NEMA L21-30 Hubbell flanged receptacle. Hubbell’s HBL2816 is a matching 30A 120/208V 4-pole 5-wire flanged receptacle.
  • What outputs does this stringer box include?
    It includes three 20A 125V 2P/3W NEMA 5-20 industrial grade color-coded duplex receptacles.
  • Does it include breaker protection?
    Yes. It includes three 20A hydraulic magnetic branch circuit protection breakers.
  • What enclosure does this box use?
    The page says it uses a powder coated enclosure, and it also says the item is built to UL1640 Standards.

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