Chicago Plenum Flexible Metal Tubing Fitting, Straight Type, Male Threaded
Engineered for demanding plenum and HVAC wiring protection applications, the S27 Series delivers a secure, dependable connection between Chicago Plenum Flexible Metal Tubing and threaded conduit systems. Precision-machined from durable zinc alloy with a zinc-plated finish, this straight type male threaded connector is built to perform reliably across a wide temperature range of -50°C to +200°C.
Key Features:
Durable Zinc Alloy Construction — Precision-manufactured for long-term mechanical strength and corrosion resistance
Wide Operating Temperature Range — Performs reliably from -50°C to +200°C, suited for demanding indoor and rooftop environments
IP66 Rated Protection — Achieves IP66 ingress protection when fitted with PFMT conduit series, guarding against dust and water intrusion
UL Listed — Certified under UL File No. E508301 (models S271-3/8, S272-1/2), ensuring compliance for North American building and electrical projects
RoHS Compliant — Meets international environmental and material safety standards
Multiple Size Options — Available in 3/8", 1/2", and 3/4" nominal conduit sizes with NPT threading to match a range of system requirements
Custom Finish Available — Standard zinc-plated finish, with alternative surface treatments available upon request
Applications:
Ideal for Chicago Plenum wiring protection, HVAC ductwork and equipment connections, and mechanical/electrical cable routing in commercial and industrial buildings where secure, code-compliant fittings are required.
Feature
-
Material:
Zinc Alloy -
Temperature Range:
-50℃~+200℃ -
IP Rating:
P 66 (Fit with PFMT conduit series) -
Surface Finish :
Zinc plated, other treatments are available by consult. -
RoHS Compliance:
Yes -
Certificate :
UL (S271-3/8, S272-1/2), File No.: E508301
Parameter
| Nominal Conduit Size | NPT Thread | Part Number | Appropriate Conduit Size (mm) | Package/Box (pcs) | Weight/Box (kg) | Certificate | Mated With |
|---|---|---|---|---|---|---|---|
| 3/8 | 1/2 | S271-3/8 | 12.29~12.80 | 800 | 19.2 |
|
|
| 1/2 | 1/2 | S272-1/2 | 15.75~16.26 | 800 | 21.8 |
|
|
| 3/4 | 3/4 | S273-3/4 | 20.83~21.34 | 500 | 29.3 |
|
|
Frequently Asked Questions
What is the S27 Series used for?
The S27 Series is a straight type male threaded connector designed to join Chicago Plenum Flexible Metal Tubing (PFMT series) to threaded conduit or equipment ports. It is commonly used in HVAC plenum wiring, building electrical distribution, and mechanical cable protection systems where a secure, code-compliant connection is required.
Is the S27 Series UL listed?
Yes. The S271-3/8 and S272-1/2 models are UL Listed under File No. E508301. This certification can be independently verified through the UL Product iQ database, which maintains the official directory of UL Certified products and components.
What material is the S27 Series made of?
The S27 Series is manufactured from zinc alloy with a zinc-plated surface finish, providing durable mechanical strength and corrosion resistance. Alternative surface treatments are available upon request.
What is the operating temperature range?
The S27 Series is rated for continuous operation from -50°C to +200°C, making it suitable for both indoor plenum spaces and more demanding thermal environments.
What IP rating does the S27 Series achieve?
When fitted with PFMT series conduit, the S27 Series assembly achieves an IP66 ingress protection rating, offering strong resistance to dust and water intrusion.
What sizes are available?
The S27 Series is available in three nominal conduit sizes: 3/8" (NPT 1/2", Part No. S271-3/8), 1/2" (NPT 1/2", Part No. S272-1/2), and 3/4" (NPT 3/4", Part No. S273-3/4), covering common plenum tubing diameters.
Is the S27 Series RoHS compliant?
Yes, the S27 Series meets RoHS compliance requirements, supporting projects with international environmental and material safety standards.
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