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Black nylon straight cable connector with 3/4 inch NPT threads

Hubbell Incorporated

Hubbell SEC75BA 3/4 in NPT Black Nylon Cable Connector

SKU CH-AXMV-CV7YW

A straight black nylon cable connector with 3/4 in NPT threading accepts cords from .45 to .71 in and meets UL 514B and CSA C22.2 No. 18 standards

  • Product typeNPT
  • Product colorBlack
  • Straight ¾ in NPT hub fits standard conduit entries
  • Black nylon body resists corrosion and UV exposure
  • Accepts cord diameters from .45 to .71 in for versatile wiring
  • UL 514B and CSA 22.2 No. 18 listed for code compliance
  • Insulated straight design simplifies liquid-tight installations

Hubbell SEC75BA 3/4 in NPT Connector

The Hubbell SEC75BA is a straight, black nylon cable connector with a 3/4 in male NPT thread. It accepts a single cord with a diameter between .45 in and .71 in and provides a liquid-tight seal for indoor or outdoor electrical enclosures. The insulated body meets CSA C 22.2 No. 18, UL 514B and VDE standards.

Installation ease and common issues

The connector threads directly into a 3/4 in NPT knockout or hub without special tools. Tighten the gland nut by hand then add a quarter turn with a wrench to compress the internal seal around the cord. Over-tightening can crack the nylon body, while under-tightening leaves a leak path. Ensure the cord diameter falls within the .45 in to .71 in range; cords outside this range will not seal correctly.

Practical limits of NPT sealing

The NPT taper thread relies on thread interference and the compressed gland seal for liquid-tight performance. Vibration or thermal cycling can loosen the connection over time, so periodic inspection is advisable in harsh environments. The nylon material resists corrosion but may degrade under prolonged UV exposure or contact with aggressive chemicals. The connector is rated for a single cord only; multiple conductors require a separate fitting.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $2.99
Cheaper than about 97% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameHubbell Wiring Device-Kellems
Model nameSEC75BA
Product typeNPT
Product colorBlack

Questions about this item

How do I confirm the SEC75BA is sealing properly after installation?

The connector meets CSA C 22.2 No. 18 and UL 514B standards; a proper seal is confirmed when the cord diameter between .45 and .71 in is fully compressed by the nylon gland with no visible gaps.

What comes in the box with the SEC75BA and what must I supply?

The package includes the straight 3/4 in NPT black nylon connector; you must supply a liquid-tight cord within the .45 to .71 in diameter range and a 3/4 in female NPT threaded entry.

Which version of the SEC75BA should I choose for my cord size?

Choose the SEC75BA when your cord diameter falls between .45 and .71 in; this single model covers that entire range with its 3/4 in MNPT thread and 2 in body length.

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