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Orange thermoplastic elastomer protective cap for female single-pole connector, 2.57 by 1.48 inches

Hubbell Incorporated

Hubbell Incorporated HBLFCAPO Single Pole Connector Cover Female Orange

SKU CH-4K7Q-EDCF9

Protective cap for female single-pole connectors rated NEMA 12, 3R and 4X, made of orange thermoplastic elastomer

  • TypeWiring Devices
  • Protects female connectors from dust and moisture with NEMA 12, 3R, 4X rating
  • Thermoplastic elastomer construction resists impact and harsh environments
  • Bright orange colour ensures quick visual identification on site
  • Fits Series 16 devices rated up to 400 A for secure coverage
  • Compact 2.57 in length by 1.48 in width allows tight-space installation

Protective Cap for Female 400 A Connector

The Hubbell HBLFCAPO is a thermoplastic-elastomer cover that seals the female end of a Series 16 single-pole connector rated for 400 A. It carries NEMA 12, 3R and 4X enclosure ratings for indoor and outdoor use. The orange colour provides high visibility on job sites. This new cap protects unused or disconnected contacts from moisture and debris.

NEMA 12, 3R and 4X Environmental Seal

The cap’s NEMA ratings mean it resists falling dirt, dripping water, rain, sleet and hose-directed water while remaining undamaged by ice formation. Thermoplastic-elastomer construction retains flexibility across temperature swings so the seal stays tight. No tools are required to fit or remove the cover. The accessory adds no electrical function; it simply preserves the connector’s integrity when the circuit is open.

400 A / Series 16 Compatibility

This cover fits only female single-pole connectors in the Series 16 range rated at 400 A. It will not seal male devices, other series or lower-current connectors. Overall length is 2.57 in and width is 1.48 in, so verify the mating face matches these dimensions before ordering. Buyers needing protection for male plugs or different amperage ratings must select a different cap.

Highlights

  • Protects female connectors from dust and moisture with NEMA 12, 3R, 4X rating
  • Thermoplastic elastomer construction resists impact and harsh environments
  • Bright orange colour ensures quick visual identification on site
  • Fits Series 16 devices rated up to 400 A for secure coverage
  • Compact 2.57 in length by 1.48 in width allows tight-space installation

Specifications

BrandHUBBELL WIRING DEVICE-KELLEMS
TypeWiring Devices

Questions about this item

How often should the thermoplastic elastomer cap be inspected or replaced on a 400 A Series 16 connection?

The cap is a passive protective cover with no moving parts or service schedule; replace it only if the thermoplastic elastomer shows cracking, UV degradation or loss of seal against the NEMA 12, 3R, 4X rating.

What is the first environmental limit the cover reaches during continuous outdoor exposure?

The NEMA 4X rating defines the limit — prolonged UV, salt spray or chemical splash beyond that rating will degrade the orange thermoplastic elastomer before the mechanical fit fails.

Does the cap add measurable heat retention or airflow restriction when left on a live 400 A connector all day?

No — the cover is only installed when the connector is de-energised, so it does not trap heat or impede airflow during operation.

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