Woodhead 28W77BLK - Watertite® Extra Hard Outdoor Plug with Locking Blade, 3 Pole/4 Wire, NEMA L17-30, 3ø 600V, Cord Grip Body Size F4, Black
Woodhead

28W77BLK

Alternate Item Number: 1301470084

UPC: 786788713874


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Overview

The Woodhead Watertite® Extra Hard Outdoor Plug (SKU: 28W77BLK) is a premium-grade, industrial-grade electrical connector engineered for the most demanding outdoor and harsh-environment applications. Designed to meet the rigorous demands of professionals in construction, manufacturing, mining, and utility sectors, this rugged plug delivers uncompromising performance where standard connectors fail. With a NEMA L17-30 rating and 600V electrical rating, it is purpose-built to handle high-power industrial loads while maintaining safety and reliability in extreme conditions. The Watertite® Extra Hard series is synonymous with durability, trusted by electricians, engineers, and facility managers who require connectors that can withstand prolonged exposure to moisture, dust, chemicals, and mechanical stress without compromising electrical integrity. This 3-pole, 4-wire plug features a locking blade mechanism that ensures a secure, tamper-resistant connection, preventing accidental disconnections that could lead to costly downtime or safety hazards. The F4 cord grip body provides superior strain relief and strain relief, sealing against environmental ingress while accommodating a wide range of cable diameters. The black, extra-hard polymer housing is formulated for UV resistance, impact resistance, and corrosion resistance, making it ideal for outdoor installations in coastal regions, industrial zones, or temporary power distribution setups. Unlike conventional plugs, the Watertite® Extra Hard series undergoes rigorous testing for ingress protection (IP67-rated when properly installed), ensuring reliable operation even in heavy rain, snow, or high-humidity environments. Selecting the right industrial plug involves evaluating voltage ratings, pole configurations, environmental exposure, and installation requirements. The Woodhead 28W77BLK excels in applications such as: - Temporary power distribution for construction sites and outdoor events - Heavy-duty machinery and equipment power connections in manufacturing plants - Mining and oil & gas field operations requiring rugged, portable power solutions - Agricultural equipment and irrigation systems exposed to moisture and debris - Emergency backup power systems and mobile substations Installation is straightforward with the included F4 cord grip, which accommodates cables from 0.5 to 1.25 inches in diameter. The locking blade design ensures a positive connection, while the strain relief prevents cable pull-out and wire damage. Woodhead’s reputation for engineering excellence and adherence to industry standards (UL, CSA, and IEC) ensures that this plug meets or exceeds the most stringent safety and performance benchmarks. Whether you’re powering a crane on a construction site, a pump in a wastewater facility, or a temporary lighting system at a festival, the Watertite® Extra Hard Outdoor Plug delivers the reliability and durability professionals demand. Choose Woodhead for connectors that don’t just meet expectations—they exceed them.
  • NEMA L17-30 rated for 600V, 3-pole/4-wire industrial power distribution
  • Extra-hard black polymer housing resists UV, impact, corrosion, and chemicals
  • F4 cord grip provides secure strain relief and IP67 environmental sealing
  • Locking blade mechanism prevents accidental disconnections in high-vibration environments
  • UL/CSA/IEC compliant, ideal for construction, mining, oil & gas, and utilities

Specifications

Amperage Rating
30 A
Brand Name
Woodhead
Color
Black
Connection Type
Locking Blade
Environmental Conditions
IP67
IP Rating
IP67
Material
Extra Hard Polymer
Nema Rating
NEMA L17-30
Number of Poles
3
Number Of Poles
3-pole/4-wire
Poles
3P/4W
Series
Watertite® Extra Hard
Size
F4
Size
F4 Cord Grip Body
Sub Brand
Watertite
Type
Plug
Voltage Rating
600 V
Voltage Rating
3Ø 600V
Package Weight (Imperial)
1.000 L
Package Weight (Metric)
0.454 kg
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Frequently Asked Questions about Woodhead

What certifications and standards do Woodhead products comply with?

Woodhead products are certified to multiple rigorous industrial standards, including UL Listed, CSA Certified, NSF Certified, and IP69K Rated. Their wiring devices meet FDA compliance requirements for food-related applications, and are tested to international standards like JIS Z2801/ISO 22196 for antimicrobial performance. These certifications demonstrate Woodhead's commitment to safety, durability, and quality across industrial, food processing, and harsh environment applications.

What industries and applications are Woodhead products used for?

Woodhead products serve a wide range of industrial applications including manufacturing, construction sites, food and beverage processing, shipyards, utility plants, and maintenance operations. Their specialized wiring devices and outlet boxes are designed for harsh environments like wet locations, petrochemical facilities, and heavy-duty industrial settings, with specific product lines for assembly stations, workstations, and portable power needs.

What are the key features of Woodhead products?

Woodhead products feature advanced industrial-grade design with key capabilities including IP69K water resistance, FDA-compliant materials, antimicrobial silicone rubber construction, and UL/CSA certifications. Their product lines span wet-location wiring devices, heavy-duty industrial connectors, portable lighting, and control solutions engineered for extreme environments like food processing, petrochemical, and manufacturing applications.

What are the main product lines offered by Woodhead?

Woodhead offers a comprehensive range of industrial connectivity solutions, including circular connectors, cordsets, and connectivity products for automation and industrial environments. Their product lines cover multiple series such as the 29W, 35, 32G, and 1000-series connectors, which are designed for robust industrial applications with various configurations and specifications.

What communication protocols do Woodhead products support?

Woodhead products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, and DeviceNet. These protocols enable flexible connectivity across multiple industrial automation platforms, supporting high-speed data transmission and seamless network integration for diverse industrial applications.