Eaton 3431PWBK watertight locking plug - IP67
Part Number: 3431PWBK
Quick Summary
The Eaton 3431PWBK watertight locking plug is a rugged industrial connector designed for enclosures and equipment exposed to wet environments. Engineers and technicians often face moisture ingress and unreliable terminations; this plug’s watertight seal and locking design help protect critical power connections and reduce field maintenance. It carries cULus listing and is rated IP67 with additional NEMA 4X protection, making it suitable for washdown, outdoor, and harsh environment-adjacent applications. Designed for industrial power, it accepts #18-10 AWG via back wiring, with a 30A rating and nickel-plated brass contacts that ensure reliable conductivity. Overall, this model offers durable construction, ease of installation, and dependable performance in demanding settings—key factors for plant uptime and maintenance efficiency.
Product Information
Extended Description
3431PWBK Eaton: Eaton Arrow Hart watertight locking connector, #18-10 AWG, 30A, Industrial, 120/208V, Black, Watertight, Non-NEMA, Four-pole, Four-wire, non-grounding, Santoprene thermoplastic elastomeric, 0.43 to 1.15 in
Product Name
Eaton Arrow Hart watertight locking plug
Catalog Number
3431PWBK
UPC
032664708497
Product Length/Depth
6.8 in
Product Height
3.88 in
Product Width
4.39 in
Product Weight
0.845 lb
Certifications
cULus Listed
Amperage Rating
30A
NEMA configuration
Non-NEMA
Number Of Poles
Four-pole
Number of wires
Non-grounding 4
Torque rating
20 lbf-inch
Voltage rating
3ØY 120/208 V
Environmental resistance
NEMA 4X NEMA 4 NEMA 6P IP67 NEMA 6
Allowable wire size
#18-10 AWG
Wiring method
Back
Color
Black
Contact material
Nickel plated brass
Application
Industrial
Cord diameter
0.43-1.15 in
Design type
Watertight locking connector
Device grade
Extra heavy-duty industrial specification grade
Face/body material
Nylon
Material
Santoprene thermoplastic elastomeric
Special features
Watertight
Type
Locking connector
Feature: Watertight locking design provides a reliable seal against water, dust, and chemicals. Benefit: Reduces moisture ingress and corrosion, lowering maintenance costs and unplanned downtime. Application: Ideal for washdown zones, outdoor equipment, and harsh production lines. Feature: 30A, 120/208V, four-pole, non-grounding configuration. Benefit: Supports robust three-phase industrial power with a simplified wiring scheme, reducing part counts and potential miswiring. Application: Power distribution to motors, pumps, conveyors, and other heavy equipment. Feature: Back wiring method with allowable #18-10 AWG wires. Benefit: Streamlined field termination with secure, repeatable connections and consistent torque. Application: Panel installations and field retrofits where space is constrained. Feature: Durable materials: nylon face/body, Santoprene elastomeric seal, and nickel-plated brass contacts. Benefit: Superior chemical resistance, long-term corrosion protection, and reliable conductivity. Application: Environments with oils, solvents, and washdowns in manufacturing plants. Feature: Tough environmental ratings: IP67, NEMA 4X, NEMA 4, NEMA 6. Benefit: Regulatory compliance and proven performance in harsh environments, reducing compliance risk. Application: Food processing, chemical plants, outdoor equipment, and industrial automation. Feature: Four-pole, non-grounding design with 0.43-1.15 in cord diameter range. Benefit: Flexible cord compatibility and secure mating for diverse installations. Application: Robotics, conveyors, and multi-wire power feeds in industrial settings.
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FAQs
The 3431PWBK uses back wiring and accepts #18-10 AWG conductors. This setup simplifies field terminations, reduces installation time, and ensures a secure, code-compliant connection in industrial panels and equipment.
The plug is rated for 30A at 120/208V with a four-pole, non-grounding configuration. This makes it suitable for three-phase power delivery to motors, pumps, and conveyors in industrial environments.
Best used in washdown zones, outdoor machinery, and harsh production lines where moisture protection and robust mating are essential. Its IP67 and NEMA 4X ratings support reliable operation in challenging environments.
This connector is cULus Listed and features IP67, NEMA 4X, and NEMA 4/NEMA 6 protections. These certifications and ratings help ensure regulatory compliance and suitability for harsh industrial and outdoor use.
With nickel-plated brass contacts, a Santoprene elastomer seal, and a durable nylon body, the plug delivers reliable conductivity and strong environmental resistance. This reduces corrosion-related downtime and extends service life in demanding facilities.