Universal Trunnion Line Post Insulators

When you’re on site, efficiency is of the essence— especially when the elements are extreme. That’s why MacLean Power Systems continues to come through with ways to streamline the things you need to get the job done.

The Universal Trunnion does just that. It puts productivity on a pedestal by eliminating the need for separate hardware, so you can quickly take care of the task at hand and get on to the next one.

It’s yet another product offering from MPS that demonstrates how we are meeting our mission of manufacturing and supplying products for the world’s evolving power grid and connecting people for good.

Want a more specialized design? Check out our other line post products, including the F-Neck, Vertical Trunnion, and Horizontal Trunnion assemblies. Learn More >

Contact us or scroll down to learn more.

Less Parts. More Efficiency.

On site with less in mind: That’s the benefit of the Universal Trunnion.

This high-quality, one-piece-fits-all product easily adapts to any application, so you can do away with all the individual trunnion clamps and tie wraps of the past.

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Adjustable

Adjustable

Conductor ranges spanning 0.2" to 1.3" (5.1 mm - 34.0 mm) with a single bolt adjustment that is hotstick workable. 

The wide lip of the clamp top accommodates large angles of conductor line turns. 

Simple

Simple

This all-inclusive design eliminates the need to purchase a trunnion clamp separately, as all clamp parts are captive.

Water Tight

Water Tight

Our PST seal uses Crimp Under Pressure technology to attach the end fitting onto the line post while creating a water-tight seal and significantly extends service life.

Extended Life

Extended Life

Specially formulated silicone housing material maximizes hydrophobicity and eliminates maintenance needs such as pressure washing while helping to extend insulator service life.

Versatile

Versatile

The user-friendly design allows a variety of installation orientations. 

Performance Under Pressure

Our PST (Primary, Secondary, Tertiary) seal is a triple layer sealing process with the benefit of a long service life. By crimping the end fitting onto the line post with a water-tight seal, this process guards against any possible moisture ingress.

This means that even if the external tertiary seal is compromised, the sheath generates a compressed mechanical seal with the fitting to provide an extra layer of protection. Our PST seal system sets MPS apart, as many other designs in the market rely solely on a single external barrier to protect the insulator core.

MPS Universal Trunnion Distribution Line Post Insulator Inside XRAY View MPS Universal Trunnion Distribution Line Post Insulator Angled View

MOVE LINE ON IMAGE TO COMPARE

FINE-TUNED FLEXIBILITY

One and done. When it comes to the Universal Trunnion, it really is as simple as that. One part. Endless applications.

Its versatile range of motion allows it to be installed at a variety of angles, and its inclusive clamp design helps to simplify installation when it matters most.

Click here to learn more about our entire Distribution line post family.

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F-NECK ASSEMBLY
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Vertical Trunnion Assembly
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Horizontal Trunnion Assembly

Distribution Line Post Overview Video

15 KV TO 46 KV UNIVERSAL TRUNNION COMPLIES WITH ANSI C29.18 AND CSA C411.6 STANDARDS

Additional MPS Distribution Products:

Maclean Power Systems offers a variety of Distribution, Substation, and Transmission Line Arrester products. Contact us for more details on products to meet your needs.

POWERING PRODUCTIVITY. SIMPLIFYING SOLUTIONS.

Assembled and delivered by our USA & Canadian teams. This provides production schedule flexibility and reduces overall lead time.

With the addition of another great innovation to our product lineup, we are helping to ensure we remain a leading global manufacturer and supplier of high-quality, essential infrastructure products for the electric utility, civil /construction and communication markets for the next century…and beyond.

Universal Trunnion Line Assembly York SC
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