Ocal ST34-G ST3/4-G PVC-Coated...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$111.67
Ocal ST34-G ST3/4-G PVC-Coated Steel Non-Grounding Liquidtight Straight Connector, 3/4-Inch

Ocal ST34-G ST3/4-G PVC-Coated Steel Non-Grounding Liquidtight Straight Connector, 3/4-Inch

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Model: ST3/4-G

In Stock (leaves warehouse same day if ordered before 3pm ET)

$111.67
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Thomas & Betts ST3/4-G Ocal PVC-Coated Steel Non-Grounding Liquidtight Straight Connector, 3/4-Inch

The Thomas & Betts ST3/4-G is a 3/4-Inch straight liquidtight connector from the Ocal line, engineered in PVC-coated steel to join liquidtight flexible conduit (LFMC) to enclosures, boxes, and equipment housings in corrosive or washdown environments. This non-grounding connector provides a secure, moisture-resistant transition between liquidtight flexible conduit and the connection point without relying on the fitting itself for equipment grounding continuity. Built on the Ocal PVC-coated steel platform, the ST3/4-G is designed for facilities where standard uncoated steel fittings would be prone to rust and chemical attack. The connector's PVC-coated steel body suits plants and processing areas where enclosures require added corrosion protection beyond standard finishes.

Key Features

  • Trade Size: 3/4-Inch connector sized for matching liquidtight flexible conduit runs.
  • Durable Construction: PVC-coated steel body resists corrosion, moisture intrusion, and chemical exposure far better than uncoated steel fittings.
  • Straight Configuration: Inline straight connector body simplifies routing where a 90-degree or angled fitting is not required.
  • Non-Grounding Design: Connector is intended for liquidtight conduit connections where a separate grounding conductor or grounding-type fitting is used elsewhere in the system.
  • Liquidtight Sealing: Constructed to maintain a tight seal between flexible conduit and the connected enclosure, helping keep moisture and contaminants out of the raceway.
  • Ocal Series Engineering: Part of the Thomas & Betts Ocal PVC-coated fitting family, purpose-built for corrosive-duty electrical installations.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Corrosive and Chemical Processing Environments
  • Food and Beverage Processing Facilities
  • Wastewater and Water Treatment Plants
  • Washdown and High-Humidity Industrial Areas
  • Outdoor Liquidtight Flexible Conduit Runs
  • Connections to Motors, Enclosures, and Junction Boxes

Why Thomas & Betts?

Thomas & Betts' Ocal line brings PVC-coated steel construction to liquidtight conduit fittings, giving the ST3/4-G connector added protection against the corrosion and chemical exposure that shorten the service life of standard steel fittings. For electricians and facility teams working in corrosive-duty or washdown environments, this 3/4-Inch non-grounding straight connector delivers a dependable, code-oriented liquidtight connection built for long-term reliability in demanding installations.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
TB-20260918
Product Type:
Straight Liquidtight Connector
Configuration:
Straight
Series:
Ocal
Department:
Electrical
Product Subgroup:
Liquidtight Conduit & Fittings
Product Material:
PVC-Coated Steel
Product Size:
3/4"
Product Group:
Conduit & Raceway

Ocal ST3/4-G – Frequently Asked Questions

1) What size liquidtight flexible conduit does the Ocal ST3/4-G connector take?
It's a 3/4 inch trade size fitting, so it pairs with 3/4 inch liquidtight flexible metal conduit (LFMC). The straight body threads into the enclosure hub or knockout and clamps the flex on the other end. For a different conduit size you need the matching trade size connector, not this one.
2) Can I use the Ocal ST3/4-G as my equipment ground path?
No. The ST3/4-G is a non-grounding liquidtight connector, so it is not intended to carry equipment grounding continuity through the fitting. Run a separate equipment grounding conductor in the flex, or use a grounding-type (grounding bushing / grounding lug) fitting where the code requires the raceway path. Electricians who assume the fitting grounds the motor or enclosure end up with no bonding path at that connection.
3) Why pay for a PVC-coated steel liquidtight connector instead of plain steel or nylon?
The reason is corrosion. The ST3/4-G body is PVC-coated steel, built for washdown, chemical, and high-humidity areas where an uncoated steel fitting rusts at the threads and the clamp. Food and beverage lines, wastewater and water treatment plants, and outdoor flex runs are the typical uses. In a dry indoor panel room, a standard steel or nylon liquidtight connector does the same mechanical job for less; the coated steel earns its keep where the atmosphere attacks the metal.
4) Will the Ocal ST3/4-G work on EMT or UF cable?
No. It's a liquidtight connector for liquidtight flexible metal conduit, not for rigid tube or cable. For EMT you want a compression connector such as the SEPCO S10112 raintight EMT compression connector, and for underground feeder cable the SEPCO UF10 series cable connector. Substituting a liquidtight fitting onto EMT will not seal or hold.
5) What is the difference between the Ocal ST3/4-G connector and the Hubbell SwivelLok PS0509N?
Both terminate liquidtight flexible conduit, but they are built for different conditions and sizes. The Ocal ST3/4-G is a 3/4-inch straight connector with a PVC-coated steel body, aimed at corrosive and washdown areas where uncoated steel fittings rust. The Hubbell PS0509N is a SwivelLok multi-position liquidtight connector in nylon, sized 1/2-inch, and its multi-position body lets the conduit angle be set rather than running strictly inline. Choose the ST3/4-G when you need 3/4-inch trade size and PVC-coated steel corrosion protection; choose the nylon SwivelLok when you need a 1/2-inch connection and the flexibility of an adjustable entry angle.
6) Can I use a SEPCO S10112 compression connector instead of an Ocal ST3/4-G?
No, they terminate different raceways. The SEPCO S10112 is an S1010RT series zinc-plated steel raintight compression connector for EMT, so it clamps onto rigid electrical metallic tubing. The Ocal ST3/4-G is a straight liquidtight connector that joins liquidtight flexible conduit to an enclosure or equipment housing. If your run is flexible liquidtight conduit, the S10112 will not land on it; if your run is EMT, the ST3/4-G is not the fitting. The ST3/4-G also carries a PVC-coated steel body for corrosive and washdown duty, where the S10112 is zinc-plated steel.
7) What part number do I order for the Ocal 3/4-inch straight liquidtight connector?
Order it as ST3/4-G, also written ST34-G, from the Thomas & Betts Ocal PVC-coated line. That is the single model offered at 3/4 inch straight, non-grounding.
8) I need a straight steel conduit connector but not for liquidtight flex - what else is there?
The SEPCO DB100-IC from the Big Bite series is an insulated tubular steel straight conduit connector, so it covers straight steel terminations outside of liquidtight flexible conduit work. The Ocal ST3/4-G is also a straight connector, but it is specifically a 3/4-inch liquidtight fitting in PVC-coated steel for joining liquidtight flexible conduit in corrosive or washdown areas. Match the fitting to the raceway in the opening: liquidtight flex calls for the ST3/4-G, while the Big Bite DB100-IC addresses straight steel connections with an insulated throat.
9) Is the SEPCO UF10 connector an alternative to the Ocal ST3/4-G for a wet outdoor run?
They serve different wiring methods. The SEPCO UF10 series is a die-cast zinc connector for underground feeder (UF) cable, so it terminates jacketed UF cable rather than conduit. The Ocal ST3/4-G terminates 3/4-inch liquidtight flexible conduit and carries a PVC-coated steel body intended for corrosive, washdown, and outdoor liquidtight runs. If the circuit leaves the enclosure as UF cable, the UF10 is the matching fitting; if it leaves in liquidtight flexible conduit, the ST3/4-G is.
10) For a food plant washdown area, which connector handles the corrosion better - the Ocal ST3/4-G or a nylon liquidtight connector?
The Ocal ST3/4-G answers corrosion with a PVC-coated steel body, which keeps the mechanical strength of steel while adding a coated barrier against chemical attack and moisture in food and beverage processing, wastewater, and washdown areas. The Hubbell PS0509N SwivelLok is a nylon liquidtight connector, a non-metallic approach to the same wet environment, offered in 1/2-inch. The decision is construction and size: coated steel at 3/4-inch with the ST3/4-G, or nylon at 1/2-inch with the SwivelLok. Note also that the ST3/4-G is a non-grounding fitting, so equipment grounding has to be carried by a separate conductor elsewhere in the system.
11) Does this fitting keep washdown water out of the raceway?
That's its purpose at the conduit end. The ST3/4-G seals between the liquidtight flex and the enclosure so moisture and contaminants stay out of the raceway. The seal is only as good as the enclosure side, though, so the hub or knockout connection needs the appropriate gasket or sealing washer for the enclosure rating you're holding.
How fast can I get the Ocal ST3/4-G delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Ocal ST3/4-G come with a warranty?
Absolutely. The Ocal ST3/4-G is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Ocal ST3/4-G?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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