Eaton 3031L Locking Switch - cULus Listed
Part Number: 3031L
Quick Summary
Eaton 3031L locking switch provides secure control for industrial panels and safety circuits. This device helps prevent accidental energization during maintenance, reducing risk and downtime for your equipment. It carries cULus Listed certification with RoHS compliance and NAFTA eligibility, signaling strong regulatory alignment across North American operations. The back and side wiring capability supports #14-10 AWG conductors in compact control enclosures, while the 30A, 120/277V rating matches common industrial loads. Designed for single-pole, maintained operation, this switch integrates easily into existing protection schemes and simplifies procurement with standard form factors and color coding.
Product Information
Extended Description
3031L Eaton: Eaton locking switch, #14-10 AWG, 30A, 120/277V, Back and side wiring, Key actuator, Maintained closure, Brown, Single-pole, Urea
Product Name
Eaton locking switch
Catalog Number
3031L
UPC
032664430107
Product Length/Depth
1.31 in
Product Height
3.28 in
Product Width
1.05 in
Product Weight
0.17 lb
Compliances
NAFTA RoHS Compliant
Certifications
cULus Listed
Allowable wire size
#14-10 AWG
Torque rating
18 lbf-inch
Special features
Locking
Type
Switch
Amperage Rating
30A
Voltage rating
120/277 V
Application
Industrial
Wiring method
Back and side
Switch type
Single-pole
Closure type
Maintained
Material
Urea
Actuator
Key
Color
Brown
Arrow Hart - Connecting Safety to Reliability since 1890
Eaton Specification Sheet - 3031L
Eaton Specification Sheet - 3031L
Feature: Locking mechanism with a key actuator and maintained closure provides a physical interlock that prevents inadvertent re-energization. Business Impact: Enhances operator safety, reduces unplanned downtime, and supports compliant lockout-tagout practices. Application: Ideal for industrial control panels and safety interlocks where secure, hands-off operation is critical. Long-tail keywords: locking switch, key actuator, maintained closure, industrial safety switch. Feature: Back and side wiring for #14-10 AWG conductors offers flexible installation. Business Impact: Simplifies field wiring, accelerates panel fabrication, and minimizes custom harnessing. Application: Control and power distribution within compact enclosures. Long-tail keywords: back wiring, side wiring, wiring methods. Feature: 30A, 120/277V electrical rating enables compatibility with standard industrial loads. Business Impact: Safe, reliable operation across common motors and control circuits; reduces need for oversized components. Application: Motor control centers, contactor circuits, and safety switch applications. Long-tail keywords: 30A switch, 120/277V rating, industrial loads. Feature: Torque rating of 18 lbf-in ensures secure terminal connections. Business Impact: Consistent terminations, reduces maintenance calls for loose connections, and enhances reliability. Application: Field installations where precise torque is required. Long-tail keywords: torque specification, 18 lbf-inch, reliable termination. Feature: Material and finish including Urea body and brown color contribute durability and visibility. Business Impact: Longer service life in industrial environments and easy identification in panel schedules. Application: Harsh environments and color-coded control panels. Long-tail keywords: urea material, brown switch, panel durability. Feature: Certifications and compliance with cULus Listed, RoHS and NAFTA. Business Impact: Facilitates procurement, regulatory alignment, and cross-border manufacturing. Application: North American industrial facilities seeking compliant components. Long-tail keywords: cULus Listed, RoHS compliant, NAFTA.
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FAQs
Installers should prepare #14-10 AWG conductors, route them to the back or side terminals, and tighten to the specified torque of 18 lbf-in. The compact 1.31 in depth fits standard enclosures, and the key actuator enables safe maintenance with a maintained closure. Verify proper wiring polarity and perform a functional test after lockout-tagout procedures.
The 3031L is a single-pole locking switch rated for 30A at 120/277V. It supports back and side wiring with #14-10 AWG conductors and uses a maintained closure. The device employs a key actuator and offers a torque rating of 18 lbf-in for secure terminations, ensuring reliable operation in industrial controls.
Yes. It is cULus Listed and RoHS compliant, with NAFTA eligibility, making it suitable for cross-border manufacturing and procurement. Its industrial-grade design, 120/277V operation, and 30A rating align with common North American control circuits and safety panels.
Maintenance should focus on verifying the lock mechanism remains secure and the terminals retain proper torque (18 lbf-in). Inspect the Urea body for visual wear and ensure the key actuator engages fully to maintain safety control. Regular inspections as part of lockout-tagout procedures help sustain reliability.
The locking mechanism prevents unauthorized or accidental re-energization, reducing restart risk after maintenance. It enhances safety, supports compliant lockout-tagout practices, minimizes unexpected downtime, and improves overall reliability of control circuits in industrial environments.