Eaton 5703N Plug - Heavy-Duty 30A 277V, cULus Listed
Part Number: 5703N
Quick Summary
The Eaton 5703N Plug is an industrial-grade, extra-heavy-duty auto grip plug designed for secure 277V power delivery up to 30A in demanding environments. Operators face vibration, loose terminations, and wiring fatigue; the auto grip with back-wire termination helps maintain a solid connection and reduces maintenance downtime. This device carries cULus Listed, NOM, and Federal Specification Classification 6221 02 certifications, supporting regulatory compliance across facilities. For manufacturers and integrators, the nylon body with brass contacts delivers durable performance and long service life in two-pole, three-wire grounded configurations, ideal for control panels and industrial equipment wiring.
Product Information
Extended Description
5703N Eaton: Eaton Arrow Hart extra heavy-duty auto grip plug , #12-4 AWG, 30A, Industrial, 277V, Back wire, Gray, Brass, Nylon, 7-30P, Two-pole, three-wire, grounding, Screw, Nylon, Core pack
Product Name
Eaton Arrow Hart extra heavy-duty auto grip plug
Catalog Number
5703N
UPC
040893020037
Product Length/Depth
6.938 in
Product Height
3.375 in
Product Width
3.61 in
Product Weight
1.05 lb
Certifications
cULus Listed NOM Federal Specification Classification 6221 02
Device type
Plug
Type
Plug
Amperage Rating
30A
Voltage rating
277 V
Contact material
Brass
Application
Industrial
Device grade
Extra heavy-duty industrial specification grade
Wiring method
Back wire
Number of wires
3
Number Of Poles
Two-pole
Style type
Power, Straight body
Material
Nylon
Packaging type
Core pack
Color
Gray
Connection type
Screw
Allowable wire size
#12-4 AWG
NEMA configuration
7-30P
Torque rating
20-24 lbf-inch
Design type
Straight blade
Face/body material
Nylon
Receptacle type
Two-pole, three-wire, grounding
Flush mount receptacles sell sheet
Arrow Hart Buyers Guide Section A
Eaton Specification Sheet - 5703N
Feature: Extra heavy-duty auto grip plug delivers a secure, vibration-resistant connection. Business Impact: Minimizes unscheduled downtime and rework due to loose terminations in demand-driven environments. Application: Suitable for heavy machinery and manufacturing lines that require reliable 30A, 277V power delivery. Feature: Back-wire termination. Business Impact: Speeds up installation and reduces risk of wire-sectional failures, boosting field productivity. Application: Control panels and wiring junctions where fast, clean terminations are essential. Feature: Brass contact material. Business Impact: Improves conductivity and durability for high-current applications, enhancing long-term reliability. Application: Industrial power distribution within motor drives and equipment feeds. Feature: Nylon housing and face/body. Business Impact: Provides chemical resistance, impact resilience, and low weight for easier handling and installation. Application: Harsh factory floors, chemical zones, and outdoor-rated environments when applicable. Feature: NEMA 7-30P, two-pole, three-wire grounding configuration. Business Impact: Ensures correct grounding and safer connections in critical loads. Application: Wiring of industrial equipment requiring secure grounding and compliance. Feature: Torque rating of 20–24 lbf-in. Business Impact: Guides proper torque during installation, reducing over-tightening or loose connections. Application: Field wiring and maintenance of plug receptacles in service panels.
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FAQs
Begin by ensuring the power is disconnected and the device is compatible with a back-wire termination. Strip conductors to the specified length, insert wires into the back-wire terminals, and tighten to the recommended torque range of 20–24 lbf-in. Verify that the wires are fully seated and that the ground conductor is properly connected to the grounding path. Finally, inspect the assembly for secure engagement and restore power to test circuit integrity.
The 5703N is rated for 30A at 277V, with brass contacts for reliable current transfer and a nylon body that withstands industrial conditions. Its NEMA 7-30P configuration supports secure two-pole, three-wire grounding, while the auto grip design maintains a stable connection under vibration and mechanical stress typical of manufacturing floors.
Yes. The extra heavy-duty construction, brass contact material, and nylon housing are chosen for durability in vibration-prone environments. The auto grip mechanism minimizes looseness over time, providing safer, more reliable power connections in conveyors, presses, and other moving equipment.
The 5703N is cULus Listed and NOM certified with Federal Specification Classification 6221 02. These certifications indicate the product meets recognized safety and performance standards, helping facilities comply with electrical codes and procurement requirements for industrial installations and OEM sourcing.
The plug's secure back-wire termination, durable nylon/brass construction, and vibration resistance translate to reduced maintenance, fewer field failures, and longer service life in control panels. Although upfront costs are modest, fewer downtime events and faster installation contribute to a favorable total cost of ownership over the equipment lifecycle.